add C3

4 files changed, 9827 insertions, 0 deletions

diff --git a/static/css/c3.css b/static/css/c3.css
new file mode 100644
index 0000000..7f7cda8
--- /dev/null
+++ b/static/css/c3.css
@@ -0,0 +1,234 @@
+/*-- Chart --*/
+.c3 svg {
+  font: 10px sans-serif;
+  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+}
+
+.c3 path, .c3 line {
+  fill: none;
+  stroke: #000;
+}
+
+.c3 text {
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  user-select: none;
+}
+
+.c3-legend-item-tile,
+.c3-xgrid-focus,
+.c3-ygrid,
+.c3-event-rect,
+.c3-bars path {
+  shape-rendering: crispEdges;
+}
+
+.c3-chart-arc path {
+  stroke: #fff;
+}
+
+.c3-chart-arc rect {
+  stroke: white;
+  stroke-width: 1;
+}
+
+.c3-chart-arc text {
+  fill: #fff;
+  font-size: 13px;
+}
+
+/*-- Axis --*/
+/*-- Grid --*/
+.c3-grid line {
+  stroke: #aaa;
+}
+
+.c3-grid text {
+  fill: #aaa;
+}
+
+.c3-xgrid, .c3-ygrid {
+  stroke-dasharray: 3 3;
+}
+
+/*-- Text on Chart --*/
+.c3-text.c3-empty {
+  fill: #808080;
+  font-size: 2em;
+}
+
+/*-- Line --*/
+.c3-line {
+  stroke-width: 1px;
+}
+
+/*-- Point --*/
+.c3-circle._expanded_ {
+  stroke-width: 1px;
+  stroke: white;
+}
+
+.c3-selected-circle {
+  fill: white;
+  stroke-width: 2px;
+}
+
+/*-- Bar --*/
+.c3-bar {
+  stroke-width: 0;
+}
+
+.c3-bar._expanded_ {
+  fill-opacity: 1;
+  fill-opacity: 0.75;
+}
+
+/*-- Focus --*/
+.c3-target.c3-focused {
+  opacity: 1;
+}
+
+.c3-target.c3-focused path.c3-line, .c3-target.c3-focused path.c3-step {
+  stroke-width: 2px;
+}
+
+.c3-target.c3-defocused {
+  opacity: 0.3 !important;
+}
+
+/*-- Region --*/
+.c3-region {
+  fill: steelblue;
+  fill-opacity: 0.1;
+}
+
+/*-- Brush --*/
+.c3-brush .extent {
+  fill-opacity: 0.1;
+}
+
+/*-- Select - Drag --*/
+/*-- Legend --*/
+.c3-legend-item {
+  font-size: 12px;
+}
+
+.c3-legend-item-hidden {
+  opacity: 0.15;
+}
+
+.c3-legend-background {
+  opacity: 0.75;
+  fill: white;
+  stroke: lightgray;
+  stroke-width: 1;
+}
+
+/*-- Title --*/
+.c3-title {
+  font: 14px sans-serif;
+}
+
+/*-- Tooltip --*/
+.c3-tooltip-container {
+  z-index: 10;
+}
+
+.c3-tooltip {
+  border-collapse: collapse;
+  border-spacing: 0;
+  background-color: #fff;
+  empty-cells: show;
+  -webkit-box-shadow: 7px 7px 12px -9px #777777;
+  -moz-box-shadow: 7px 7px 12px -9px #777777;
+  box-shadow: 7px 7px 12px -9px #777777;
+  opacity: 0.9;
+}
+
+.c3-tooltip tr {
+  border: 1px solid #CCC;
+}
+
+.c3-tooltip th {
+  background-color: #aaa;
+  font-size: 14px;
+  padding: 2px 5px;
+  text-align: left;
+  color: #FFF;
+}
+
+.c3-tooltip td {
+  font-size: 13px;
+  padding: 3px 6px;
+  background-color: #fff;
+  border-left: 1px dotted #999;
+}
+
+.c3-tooltip td > span {
+  display: inline-block;
+  width: 10px;
+  height: 10px;
+  margin-right: 6px;
+}
+
+.c3-tooltip td.value {
+  text-align: right;
+}
+
+/*-- Area --*/
+.c3-area {
+  stroke-width: 0;
+  opacity: 0.2;
+}
+
+/*-- Arc --*/
+.c3-chart-arcs-title {
+  dominant-baseline: middle;
+  font-size: 1.3em;
+}
+
+.c3-chart-arcs .c3-chart-arcs-background {
+  fill: #e0e0e0;
+  stroke: #FFF;
+}
+
+.c3-chart-arcs .c3-chart-arcs-gauge-unit {
+  fill: #000;
+  font-size: 16px;
+}
+
+.c3-chart-arcs .c3-chart-arcs-gauge-max {
+  fill: #777;
+}
+
+.c3-chart-arcs .c3-chart-arcs-gauge-min {
+  fill: #777;
+}
+
+.c3-chart-arc .c3-gauge-value {
+  fill: #000;
+  /*  font-size: 28px !important;*/
+}
+
+.c3-chart-arc.c3-target g path {
+  opacity: 1;
+}
+
+.c3-chart-arc.c3-target.c3-focused g path {
+  opacity: 1;
+}
+
+/*-- Zoom --*/
+.c3-drag-zoom.enabled {
+  pointer-events: all !important;
+  visibility: visible;
+}
+
+.c3-drag-zoom.disabled {
+  pointer-events: none !important;
+  visibility: hidden;
+}
+
+.c3-drag-zoom .extent {
+  fill-opacity: 0.1;
+}
diff --git a/static/css/c3.min.css b/static/css/c3.min.css
new file mode 100644
index 0000000..b62e5f5
--- /dev/null
+++ b/static/css/c3.min.css
@@ -0,0 +1 @@
+.c3 svg{font:10px sans-serif;-webkit-tap-highlight-color:transparent}.c3 line,.c3 path{fill:none;stroke:#000}.c3 text{-webkit-user-select:none;-moz-user-select:none;user-select:none}.c3-bars path,.c3-event-rect,.c3-legend-item-tile,.c3-xgrid-focus,.c3-ygrid{shape-rendering:crispEdges}.c3-chart-arc path{stroke:#fff}.c3-chart-arc rect{stroke:#fff;stroke-width:1}.c3-chart-arc text{fill:#fff;font-size:13px}.c3-grid line{stroke:#aaa}.c3-grid text{fill:#aaa}.c3-xgrid,.c3-ygrid{stroke-dasharray:3 3}.c3-text.c3-empty{fill:grey;font-size:2em}.c3-line{stroke-width:1px}.c3-circle._expanded_{stroke-width:1px;stroke:#fff}.c3-selected-circle{fill:#fff;stroke-width:2px}.c3-bar{stroke-width:0}.c3-bar._expanded_{fill-opacity:1;fill-opacity:.75}.c3-target.c3-focused{opacity:1}.c3-target.c3-focused path.c3-line,.c3-target.c3-focused path.c3-step{stroke-width:2px}.c3-target.c3-defocused{opacity:.3!important}.c3-region{fill:#4682b4;fill-opacity:.1}.c3-brush .extent{fill-opacity:.1}.c3-legend-item{font-size:12px}.c3-legend-item-hidden{opacity:.15}.c3-legend-background{opacity:.75;fill:#fff;stroke:#d3d3d3;stroke-width:1}.c3-title{font:14px sans-serif}.c3-tooltip-container{z-index:10}.c3-tooltip{border-collapse:collapse;border-spacing:0;background-color:#fff;empty-cells:show;-webkit-box-shadow:7px 7px 12px -9px #777;-moz-box-shadow:7px 7px 12px -9px #777;box-shadow:7px 7px 12px -9px #777;opacity:.9}.c3-tooltip tr{border:1px solid #ccc}.c3-tooltip th{background-color:#aaa;font-size:14px;padding:2px 5px;text-align:left;color:#fff}.c3-tooltip td{font-size:13px;padding:3px 6px;background-color:#fff;border-left:1px dotted #999}.c3-tooltip td>span{display:inline-block;width:10px;height:10px;margin-right:6px}.c3-tooltip td.value{text-align:right}.c3-area{stroke-width:0;opacity:.2}.c3-chart-arcs-title{dominant-baseline:middle;font-size:1.3em}.c3-chart-arcs .c3-chart-arcs-background{fill:#e0e0e0;stroke:#fff}.c3-chart-arcs .c3-chart-arcs-gauge-unit{fill:#000;font-size:16px}.c3-chart-arcs .c3-chart-arcs-gauge-max{fill:#777}.c3-chart-arcs .c3-chart-arcs-gauge-min{fill:#777}.c3-chart-arc .c3-gauge-value{fill:#000}.c3-chart-arc.c3-target g path{opacity:1}.c3-chart-arc.c3-target.c3-focused g path{opacity:1}.c3-drag-zoom.enabled{pointer-events:all!important;visibility:visible}.c3-drag-zoom.disabled{pointer-events:none!important;visibility:hidden}.c3-drag-zoom .extent{fill-opacity:.1}
\ No newline at end of file
diff --git a/static/js/c3.js b/static/js/c3.js
new file mode 100644
index 0000000..04eb151
--- /dev/null
+++ b/static/js/c3.js
@@ -0,0 +1,9590 @@
+/* @license C3.js v0.6.7 | (c) C3 Team and other contributors | http://c3js.org/ */
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    (global.c3 = factory());
+}(this, (function () { 'use strict';
+
+    function ChartInternal(api) {
+        var $$ = this;
+        $$.d3 = window.d3 ? window.d3 : typeof require !== 'undefined' ? require("d3") : undefined;
+        $$.api = api;
+        $$.config = $$.getDefaultConfig();
+        $$.data = {};
+        $$.cache = {};
+        $$.axes = {};
+    }
+
+    function Chart(config) {
+        var $$ = this.internal = new ChartInternal(this);
+        $$.loadConfig(config);
+
+        $$.beforeInit(config);
+        $$.init();
+        $$.afterInit(config);
+
+        // bind "this" to nested API
+        (function bindThis(fn, target, argThis) {
+            Object.keys(fn).forEach(function (key) {
+                target[key] = fn[key].bind(argThis);
+                if (Object.keys(fn[key]).length > 0) {
+                    bindThis(fn[key], target[key], argThis);
+                }
+            });
+        })(Chart.prototype, this, this);
+    }
+
+    function AxisInternal(component, params) {
+        var internal = this;
+        internal.component = component;
+        internal.params = params || {};
+
+        internal.d3 = component.d3;
+        internal.scale = internal.d3.scaleLinear();
+        internal.range;
+        internal.orient = "bottom";
+        internal.innerTickSize = 6;
+        internal.outerTickSize = this.params.withOuterTick ? 6 : 0;
+        internal.tickPadding = 3;
+        internal.tickValues = null;
+        internal.tickFormat;
+        internal.tickArguments;
+
+        internal.tickOffset = 0;
+        internal.tickCulling = true;
+        internal.tickCentered;
+        internal.tickTextCharSize;
+        internal.tickTextRotate = internal.params.tickTextRotate;
+        internal.tickLength;
+
+        internal.axis = internal.generateAxis();
+    }
+
+    AxisInternal.prototype.axisX = function (selection, x, tickOffset) {
+        selection.attr("transform", function (d) {
+            return "translate(" + Math.ceil(x(d) + tickOffset) + ", 0)";
+        });
+    };
+    AxisInternal.prototype.axisY = function (selection, y) {
+        selection.attr("transform", function (d) {
+            return "translate(0," + Math.ceil(y(d)) + ")";
+        });
+    };
+    AxisInternal.prototype.scaleExtent = function (domain) {
+        var start = domain[0],
+            stop = domain[domain.length - 1];
+        return start < stop ? [start, stop] : [stop, start];
+    };
+    AxisInternal.prototype.generateTicks = function (scale) {
+        var internal = this;
+        var i,
+            domain,
+            ticks = [];
+        if (scale.ticks) {
+            return scale.ticks.apply(scale, internal.tickArguments);
+        }
+        domain = scale.domain();
+        for (i = Math.ceil(domain[0]); i < domain[1]; i++) {
+            ticks.push(i);
+        }
+        if (ticks.length > 0 && ticks[0] > 0) {
+            ticks.unshift(ticks[0] - (ticks[1] - ticks[0]));
+        }
+        return ticks;
+    };
+    AxisInternal.prototype.copyScale = function () {
+        var internal = this;
+        var newScale = internal.scale.copy(),
+            domain;
+        if (internal.params.isCategory) {
+            domain = internal.scale.domain();
+            newScale.domain([domain[0], domain[1] - 1]);
+        }
+        return newScale;
+    };
+    AxisInternal.prototype.textFormatted = function (v) {
+        var internal = this,
+            formatted = internal.tickFormat ? internal.tickFormat(v) : v;
+        return typeof formatted !== 'undefined' ? formatted : '';
+    };
+    AxisInternal.prototype.updateRange = function () {
+        var internal = this;
+        internal.range = internal.scale.rangeExtent ? internal.scale.rangeExtent() : internal.scaleExtent(internal.scale.range());
+        return internal.range;
+    };
+    AxisInternal.prototype.updateTickTextCharSize = function (tick) {
+        var internal = this;
+        if (internal.tickTextCharSize) {
+            return internal.tickTextCharSize;
+        }
+        var size = {
+            h: 11.5,
+            w: 5.5
+        };
+        tick.select('text').text(function (d) {
+            return internal.textFormatted(d);
+        }).each(function (d) {
+            var box = this.getBoundingClientRect(),
+                text = internal.textFormatted(d),
+                h = box.height,
+                w = text ? box.width / text.length : undefined;
+            if (h && w) {
+                size.h = h;
+                size.w = w;
+            }
+        }).text('');
+        internal.tickTextCharSize = size;
+        return size;
+    };
+    AxisInternal.prototype.isVertical = function () {
+        return this.orient === 'left' || this.orient === 'right';
+    };
+    AxisInternal.prototype.tspanData = function (d, i, scale) {
+        var internal = this;
+        var splitted = internal.params.tickMultiline ? internal.splitTickText(d, scale) : [].concat(internal.textFormatted(d));
+
+        if (internal.params.tickMultiline && internal.params.tickMultilineMax > 0) {
+            splitted = internal.ellipsify(splitted, internal.params.tickMultilineMax);
+        }
+
+        return splitted.map(function (s) {
+            return { index: i, splitted: s, length: splitted.length };
+        });
+    };
+    AxisInternal.prototype.splitTickText = function (d, scale) {
+        var internal = this,
+            tickText = internal.textFormatted(d),
+            maxWidth = internal.params.tickWidth,
+            subtext,
+            spaceIndex,
+            textWidth,
+            splitted = [];
+
+        if (Object.prototype.toString.call(tickText) === "[object Array]") {
+            return tickText;
+        }
+
+        if (!maxWidth || maxWidth <= 0) {
+            maxWidth = internal.isVertical() ? 95 : internal.params.isCategory ? Math.ceil(scale(1) - scale(0)) - 12 : 110;
+        }
+
+        function split(splitted, text) {
+            spaceIndex = undefined;
+            for (var i = 1; i < text.length; i++) {
+                if (text.charAt(i) === ' ') {
+                    spaceIndex = i;
+                }
+                subtext = text.substr(0, i + 1);
+                textWidth = internal.tickTextCharSize.w * subtext.length;
+                // if text width gets over tick width, split by space index or crrent index
+                if (maxWidth < textWidth) {
+                    return split(splitted.concat(text.substr(0, spaceIndex ? spaceIndex : i)), text.slice(spaceIndex ? spaceIndex + 1 : i));
+                }
+            }
+            return splitted.concat(text);
+        }
+
+        return split(splitted, tickText + "");
+    };
+    AxisInternal.prototype.ellipsify = function (splitted, max) {
+        if (splitted.length <= max) {
+            return splitted;
+        }
+
+        var ellipsified = splitted.slice(0, max);
+        var remaining = 3;
+        for (var i = max - 1; i >= 0; i--) {
+            var available = ellipsified[i].length;
+
+            ellipsified[i] = ellipsified[i].substr(0, available - remaining).padEnd(available, '.');
+
+            remaining -= available;
+
+            if (remaining <= 0) {
+                break;
+            }
+        }
+
+        return ellipsified;
+    };
+    AxisInternal.prototype.updateTickLength = function () {
+        var internal = this;
+        internal.tickLength = Math.max(internal.innerTickSize, 0) + internal.tickPadding;
+    };
+    AxisInternal.prototype.lineY2 = function (d) {
+        var internal = this,
+            tickPosition = internal.scale(d) + (internal.tickCentered ? 0 : internal.tickOffset);
+        return internal.range[0] < tickPosition && tickPosition < internal.range[1] ? internal.innerTickSize : 0;
+    };
+    AxisInternal.prototype.textY = function () {
+        var internal = this,
+            rotate = internal.tickTextRotate;
+        return rotate ? 11.5 - 2.5 * (rotate / 15) * (rotate > 0 ? 1 : -1) : internal.tickLength;
+    };
+    AxisInternal.prototype.textTransform = function () {
+        var internal = this,
+            rotate = internal.tickTextRotate;
+        return rotate ? "rotate(" + rotate + ")" : "";
+    };
+    AxisInternal.prototype.textTextAnchor = function () {
+        var internal = this,
+            rotate = internal.tickTextRotate;
+        return rotate ? rotate > 0 ? "start" : "end" : "middle";
+    };
+    AxisInternal.prototype.tspanDx = function () {
+        var internal = this,
+            rotate = internal.tickTextRotate;
+        return rotate ? 8 * Math.sin(Math.PI * (rotate / 180)) : 0;
+    };
+    AxisInternal.prototype.tspanDy = function (d, i) {
+        var internal = this,
+            dy = internal.tickTextCharSize.h;
+        if (i === 0) {
+            if (internal.isVertical()) {
+                dy = -((d.length - 1) * (internal.tickTextCharSize.h / 2) - 3);
+            } else {
+                dy = ".71em";
+            }
+        }
+        return dy;
+    };
+
+    AxisInternal.prototype.generateAxis = function () {
+        var internal = this,
+            d3 = internal.d3,
+            params = internal.params;
+        function axis(g, transition) {
+            var self;
+            g.each(function () {
+                var g = axis.g = d3.select(this);
+
+                var scale0 = this.__chart__ || internal.scale,
+                    scale1 = this.__chart__ = internal.copyScale();
+
+                var ticksValues = internal.tickValues ? internal.tickValues : internal.generateTicks(scale1),
+                    ticks = g.selectAll(".tick").data(ticksValues, scale1),
+                    tickEnter = ticks.enter().insert("g", ".domain").attr("class", "tick").style("opacity", 1e-6),
+
+                // MEMO: No exit transition. The reason is this transition affects max tick width calculation because old tick will be included in the ticks.
+                tickExit = ticks.exit().remove(),
+                    tickUpdate = ticks.merge(tickEnter),
+                    tickTransform,
+                    tickX,
+                    tickY;
+
+                if (params.isCategory) {
+                    internal.tickOffset = Math.ceil((scale1(1) - scale1(0)) / 2);
+                    tickX = internal.tickCentered ? 0 : internal.tickOffset;
+                    tickY = internal.tickCentered ? internal.tickOffset : 0;
+                } else {
+                    internal.tickOffset = tickX = 0;
+                }
+
+                internal.updateRange();
+                internal.updateTickLength();
+                internal.updateTickTextCharSize(g.select('.tick'));
+
+                var lineUpdate = tickUpdate.select("line").merge(tickEnter.append("line")),
+                    textUpdate = tickUpdate.select("text").merge(tickEnter.append("text"));
+
+                var tspans = tickUpdate.selectAll('text').selectAll('tspan').data(function (d, i) {
+                    return internal.tspanData(d, i, scale1);
+                }),
+                    tspanEnter = tspans.enter().append('tspan'),
+                    tspanUpdate = tspanEnter.merge(tspans).text(function (d) {
+                    return d.splitted;
+                });
+                tspans.exit().remove();
+
+                var path = g.selectAll(".domain").data([0]),
+                    pathUpdate = path.enter().append("path").merge(path).attr("class", "domain");
+
+                // TODO: each attr should be one function and change its behavior by internal.orient, probably
+                switch (internal.orient) {
+                    case "bottom":
+                        {
+                            tickTransform = internal.axisX;
+                            lineUpdate.attr("x1", tickX).attr("x2", tickX).attr("y2", function (d, i) {
+                                return internal.lineY2(d, i);
+                            });
+                            textUpdate.attr("x", 0).attr("y", function (d, i) {
+                                return internal.textY(d, i);
+                            }).attr("transform", function (d, i) {
+                                return internal.textTransform(d, i);
+                            }).style("text-anchor", function (d, i) {
+                                return internal.textTextAnchor(d, i);
+                            });
+                            tspanUpdate.attr('x', 0).attr("dy", function (d, i) {
+                                return internal.tspanDy(d, i);
+                            }).attr('dx', function (d, i) {
+                                return internal.tspanDx(d, i);
+                            });
+                            pathUpdate.attr("d", "M" + internal.range[0] + "," + internal.outerTickSize + "V0H" + internal.range[1] + "V" + internal.outerTickSize);
+                            break;
+                        }
+                    case "top":
+                        {
+                            // TODO: rotated tick text
+                            tickTransform = internal.axisX;
+                            lineUpdate.attr("x1", tickX).attr("x2", tickX).attr("y2", function (d, i) {
+                                return -1 * internal.lineY2(d, i);
+                            });
+                            textUpdate.attr("x", 0).attr("y", function (d, i) {
+                                return -1 * internal.textY(d, i) - (params.isCategory ? 2 : internal.tickLength - 2);
+                            }).attr("transform", function (d, i) {
+                                return internal.textTransform(d, i);
+                            }).style("text-anchor", function (d, i) {
+                                return internal.textTextAnchor(d, i);
+                            });
+                            tspanUpdate.attr('x', 0).attr("dy", function (d, i) {
+                                return internal.tspanDy(d, i);
+                            }).attr('dx', function (d, i) {
+                                return internal.tspanDx(d, i);
+                            });
+                            pathUpdate.attr("d", "M" + internal.range[0] + "," + -internal.outerTickSize + "V0H" + internal.range[1] + "V" + -internal.outerTickSize);
+                            break;
+                        }
+                    case "left":
+                        {
+                            tickTransform = internal.axisY;
+                            lineUpdate.attr("x2", -internal.innerTickSize).attr("y1", tickY).attr("y2", tickY);
+                            textUpdate.attr("x", -internal.tickLength).attr("y", internal.tickOffset).style("text-anchor", "end");
+                            tspanUpdate.attr('x', -internal.tickLength).attr("dy", function (d, i) {
+                                return internal.tspanDy(d, i);
+                            });
+                            pathUpdate.attr("d", "M" + -internal.outerTickSize + "," + internal.range[0] + "H0V" + internal.range[1] + "H" + -internal.outerTickSize);
+                            break;
+                        }
+                    case "right":
+                        {
+                            tickTransform = internal.axisY;
+                            lineUpdate.attr("x2", internal.innerTickSize).attr("y1", tickY).attr("y2", tickY);
+                            textUpdate.attr("x", internal.tickLength).attr("y", internal.tickOffset).style("text-anchor", "start");
+                            tspanUpdate.attr('x', internal.tickLength).attr("dy", function (d, i) {
+                                return internal.tspanDy(d, i);
+                            });
+                            pathUpdate.attr("d", "M" + internal.outerTickSize + "," + internal.range[0] + "H0V" + internal.range[1] + "H" + internal.outerTickSize);
+                            break;
+                        }
+                }
+                if (scale1.rangeBand) {
+                    var x = scale1,
+                        dx = x.rangeBand() / 2;
+                    scale0 = scale1 = function scale1(d) {
+                        return x(d) + dx;
+                    };
+                } else if (scale0.rangeBand) {
+                    scale0 = scale1;
+                } else {
+                    tickExit.call(tickTransform, scale1, internal.tickOffset);
+                }
+                tickEnter.call(tickTransform, scale0, internal.tickOffset);
+                self = (transition ? tickUpdate.transition(transition) : tickUpdate).style('opacity', 1).call(tickTransform, scale1, internal.tickOffset);
+            });
+            return self;
+        }
+        axis.scale = function (x) {
+            if (!arguments.length) {
+                return internal.scale;
+            }
+            internal.scale = x;
+            return axis;
+        };
+        axis.orient = function (x) {
+            if (!arguments.length) {
+                return internal.orient;
+            }
+            internal.orient = x in { top: 1, right: 1, bottom: 1, left: 1 } ? x + "" : "bottom";
+            return axis;
+        };
+        axis.tickFormat = function (format) {
+            if (!arguments.length) {
+                return internal.tickFormat;
+            }
+            internal.tickFormat = format;
+            return axis;
+        };
+        axis.tickCentered = function (isCentered) {
+            if (!arguments.length) {
+                return internal.tickCentered;
+            }
+            internal.tickCentered = isCentered;
+            return axis;
+        };
+        axis.tickOffset = function () {
+            return internal.tickOffset;
+        };
+        axis.tickInterval = function () {
+            var interval, length;
+            if (params.isCategory) {
+                interval = internal.tickOffset * 2;
+            } else {
+                length = axis.g.select('path.domain').node().getTotalLength() - internal.outerTickSize * 2;
+                interval = length / axis.g.selectAll('line').size();
+            }
+            return interval === Infinity ? 0 : interval;
+        };
+        axis.ticks = function () {
+            if (!arguments.length) {
+                return internal.tickArguments;
+            }
+            internal.tickArguments = arguments;
+            return axis;
+        };
+        axis.tickCulling = function (culling) {
+            if (!arguments.length) {
+                return internal.tickCulling;
+            }
+            internal.tickCulling = culling;
+            return axis;
+        };
+        axis.tickValues = function (x) {
+            if (typeof x === 'function') {
+                internal.tickValues = function () {
+                    return x(internal.scale.domain());
+                };
+            } else {
+                if (!arguments.length) {
+                    return internal.tickValues;
+                }
+                internal.tickValues = x;
+            }
+            return axis;
+        };
+        return axis;
+    };
+
+    var CLASS = {
+        target: 'c3-target',
+        chart: 'c3-chart',
+        chartLine: 'c3-chart-line',
+        chartLines: 'c3-chart-lines',
+        chartBar: 'c3-chart-bar',
+        chartBars: 'c3-chart-bars',
+        chartText: 'c3-chart-text',
+        chartTexts: 'c3-chart-texts',
+        chartArc: 'c3-chart-arc',
+        chartArcs: 'c3-chart-arcs',
+        chartArcsTitle: 'c3-chart-arcs-title',
+        chartArcsBackground: 'c3-chart-arcs-background',
+        chartArcsGaugeUnit: 'c3-chart-arcs-gauge-unit',
+        chartArcsGaugeMax: 'c3-chart-arcs-gauge-max',
+        chartArcsGaugeMin: 'c3-chart-arcs-gauge-min',
+        selectedCircle: 'c3-selected-circle',
+        selectedCircles: 'c3-selected-circles',
+        eventRect: 'c3-event-rect',
+        eventRects: 'c3-event-rects',
+        eventRectsSingle: 'c3-event-rects-single',
+        eventRectsMultiple: 'c3-event-rects-multiple',
+        zoomRect: 'c3-zoom-rect',
+        brush: 'c3-brush',
+        dragZoom: 'c3-drag-zoom',
+        focused: 'c3-focused',
+        defocused: 'c3-defocused',
+        region: 'c3-region',
+        regions: 'c3-regions',
+        title: 'c3-title',
+        tooltipContainer: 'c3-tooltip-container',
+        tooltip: 'c3-tooltip',
+        tooltipName: 'c3-tooltip-name',
+        shape: 'c3-shape',
+        shapes: 'c3-shapes',
+        line: 'c3-line',
+        lines: 'c3-lines',
+        bar: 'c3-bar',
+        bars: 'c3-bars',
+        circle: 'c3-circle',
+        circles: 'c3-circles',
+        arc: 'c3-arc',
+        arcLabelLine: 'c3-arc-label-line',
+        arcs: 'c3-arcs',
+        area: 'c3-area',
+        areas: 'c3-areas',
+        empty: 'c3-empty',
+        text: 'c3-text',
+        texts: 'c3-texts',
+        gaugeValue: 'c3-gauge-value',
+        grid: 'c3-grid',
+        gridLines: 'c3-grid-lines',
+        xgrid: 'c3-xgrid',
+        xgrids: 'c3-xgrids',
+        xgridLine: 'c3-xgrid-line',
+        xgridLines: 'c3-xgrid-lines',
+        xgridFocus: 'c3-xgrid-focus',
+        ygrid: 'c3-ygrid',
+        ygrids: 'c3-ygrids',
+        ygridLine: 'c3-ygrid-line',
+        ygridLines: 'c3-ygrid-lines',
+        axis: 'c3-axis',
+        axisX: 'c3-axis-x',
+        axisXLabel: 'c3-axis-x-label',
+        axisY: 'c3-axis-y',
+        axisYLabel: 'c3-axis-y-label',
+        axisY2: 'c3-axis-y2',
+        axisY2Label: 'c3-axis-y2-label',
+        legendBackground: 'c3-legend-background',
+        legendItem: 'c3-legend-item',
+        legendItemEvent: 'c3-legend-item-event',
+        legendItemTile: 'c3-legend-item-tile',
+        legendItemHidden: 'c3-legend-item-hidden',
+        legendItemFocused: 'c3-legend-item-focused',
+        dragarea: 'c3-dragarea',
+        EXPANDED: '_expanded_',
+        SELECTED: '_selected_',
+        INCLUDED: '_included_'
+    };
+
+    var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
+      return typeof obj;
+    } : function (obj) {
+      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+    };
+
+    var classCallCheck = function (instance, Constructor) {
+      if (!(instance instanceof Constructor)) {
+        throw new TypeError("Cannot call a class as a function");
+      }
+    };
+
+    var defineProperty = function (obj, key, value) {
+      if (key in obj) {
+        Object.defineProperty(obj, key, {
+          value: value,
+          enumerable: true,
+          configurable: true,
+          writable: true
+        });
+      } else {
+        obj[key] = value;
+      }
+
+      return obj;
+    };
+
+    var asHalfPixel = function asHalfPixel(n) {
+        return Math.ceil(n) + 0.5;
+    };
+    var ceil10 = function ceil10(v) {
+        return Math.ceil(v / 10) * 10;
+    };
+    var diffDomain = function diffDomain(d) {
+        return d[1] - d[0];
+    };
+    var getOption = function getOption(options, key, defaultValue) {
+        return isDefined(options[key]) ? options[key] : defaultValue;
+    };
+    var getPathBox = function getPathBox(path) {
+        var box = path.getBoundingClientRect(),
+            items = [path.pathSegList.getItem(0), path.pathSegList.getItem(1)],
+            minX = items[0].x,
+            minY = Math.min(items[0].y, items[1].y);
+        return { x: minX, y: minY, width: box.width, height: box.height };
+    };
+    var hasValue = function hasValue(dict, value) {
+        var found = false;
+        Object.keys(dict).forEach(function (key) {
+            if (dict[key] === value) {
+                found = true;
+            }
+        });
+        return found;
+    };
+    var isArray = function isArray(o) {
+        return Array.isArray(o);
+    };
+    var isDefined = function isDefined(v) {
+        return typeof v !== 'undefined';
+    };
+    var isEmpty = function isEmpty(o) {
+        return typeof o === 'undefined' || o === null || isString(o) && o.length === 0 || (typeof o === 'undefined' ? 'undefined' : _typeof(o)) === 'object' && Object.keys(o).length === 0;
+    };
+    var isFunction = function isFunction(o) {
+        return typeof o === 'function';
+    };
+    var isString = function isString(o) {
+        return typeof o === 'string';
+    };
+    var isUndefined = function isUndefined(v) {
+        return typeof v === 'undefined';
+    };
+    var isValue = function isValue(v) {
+        return v || v === 0;
+    };
+    var notEmpty = function notEmpty(o) {
+        return !isEmpty(o);
+    };
+    var sanitise = function sanitise(str) {
+        return typeof str === 'string' ? str.replace(/</g, '&lt;').replace(/>/g, '&gt;') : str;
+    };
+
+    var Axis = function Axis(owner) {
+        classCallCheck(this, Axis);
+
+        this.owner = owner;
+        this.d3 = owner.d3;
+        this.internal = AxisInternal;
+    };
+
+    Axis.prototype.init = function init() {
+        var $$ = this.owner,
+            config = $$.config,
+            main = $$.main;
+        $$.axes.x = main.append("g").attr("class", CLASS.axis + ' ' + CLASS.axisX).attr("clip-path", config.axis_x_inner ? "" : $$.clipPathForXAxis).attr("transform", $$.getTranslate('x')).style("visibility", config.axis_x_show ? 'visible' : 'hidden');
+        $$.axes.x.append("text").attr("class", CLASS.axisXLabel).attr("transform", config.axis_rotated ? "rotate(-90)" : "").style("text-anchor", this.textAnchorForXAxisLabel.bind(this));
+        $$.axes.y = main.append("g").attr("class", CLASS.axis + ' ' + CLASS.axisY).attr("clip-path", config.axis_y_inner ? "" : $$.clipPathForYAxis).attr("transform", $$.getTranslate('y')).style("visibility", config.axis_y_show ? 'visible' : 'hidden');
+        $$.axes.y.append("text").attr("class", CLASS.axisYLabel).attr("transform", config.axis_rotated ? "" : "rotate(-90)").style("text-anchor", this.textAnchorForYAxisLabel.bind(this));
+
+        $$.axes.y2 = main.append("g").attr("class", CLASS.axis + ' ' + CLASS.axisY2)
+        // clip-path?
+        .attr("transform", $$.getTranslate('y2')).style("visibility", config.axis_y2_show ? 'visible' : 'hidden');
+        $$.axes.y2.append("text").attr("class", CLASS.axisY2Label).attr("transform", config.axis_rotated ? "" : "rotate(-90)").style("text-anchor", this.textAnchorForY2AxisLabel.bind(this));
+    };
+    Axis.prototype.getXAxis = function getXAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) {
+        var $$ = this.owner,
+            config = $$.config,
+            axisParams = {
+            isCategory: $$.isCategorized(),
+            withOuterTick: withOuterTick,
+            tickMultiline: config.axis_x_tick_multiline,
+            tickMultilineMax: config.axis_x_tick_multiline ? Number(config.axis_x_tick_multilineMax) : 0,
+            tickWidth: config.axis_x_tick_width,
+            tickTextRotate: withoutRotateTickText ? 0 : config.axis_x_tick_rotate,
+            withoutTransition: withoutTransition
+        },
+            axis = new this.internal(this, axisParams).axis.scale(scale).orient(orient);
+
+        if ($$.isTimeSeries() && tickValues && typeof tickValues !== "function") {
+            tickValues = tickValues.map(function (v) {
+                return $$.parseDate(v);
+            });
+        }
+
+        // Set tick
+        axis.tickFormat(tickFormat).tickValues(tickValues);
+        if ($$.isCategorized()) {
+            axis.tickCentered(config.axis_x_tick_centered);
+            if (isEmpty(config.axis_x_tick_culling)) {
+                config.axis_x_tick_culling = false;
+            }
+        }
+
+        return axis;
+    };
+    Axis.prototype.updateXAxisTickValues = function updateXAxisTickValues(targets, axis) {
+        var $$ = this.owner,
+            config = $$.config,
+            tickValues;
+        if (config.axis_x_tick_fit || config.axis_x_tick_count) {
+            tickValues = this.generateTickValues($$.mapTargetsToUniqueXs(targets), config.axis_x_tick_count, $$.isTimeSeries());
+        }
+        if (axis) {
+            axis.tickValues(tickValues);
+        } else {
+            $$.xAxis.tickValues(tickValues);
+            $$.subXAxis.tickValues(tickValues);
+        }
+        return tickValues;
+    };
+    Axis.prototype.getYAxis = function getYAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) {
+        var $$ = this.owner,
+            config = $$.config,
+            axisParams = {
+            withOuterTick: withOuterTick,
+            withoutTransition: withoutTransition,
+            tickTextRotate: withoutRotateTickText ? 0 : config.axis_y_tick_rotate
+        },
+            axis = new this.internal(this, axisParams).axis.scale(scale).orient(orient).tickFormat(tickFormat);
+        if ($$.isTimeSeriesY()) {
+            axis.ticks(config.axis_y_tick_time_type, config.axis_y_tick_time_interval);
+        } else {
+            axis.tickValues(tickValues);
+        }
+        return axis;
+    };
+    Axis.prototype.getId = function getId(id) {
+        var config = this.owner.config;
+        return id in config.data_axes ? config.data_axes[id] : 'y';
+    };
+    Axis.prototype.getXAxisTickFormat = function getXAxisTickFormat() {
+        // #2251 previously set any negative values to a whole number,
+        // however both should be truncated according to the users format specification
+        var $$ = this.owner,
+            config = $$.config;
+        var format = $$.isTimeSeries() ? $$.defaultAxisTimeFormat : $$.isCategorized() ? $$.categoryName : function (v) {
+            return v;
+        };
+
+        if (config.axis_x_tick_format) {
+            if (isFunction(config.axis_x_tick_format)) {
+                format = config.axis_x_tick_format;
+            } else if ($$.isTimeSeries()) {
+                format = function format(date) {
+                    return date ? $$.axisTimeFormat(config.axis_x_tick_format)(date) : "";
+                };
+            }
+        }
+        return isFunction(format) ? function (v) {
+            return format.call($$, v);
+        } : format;
+    };
+    Axis.prototype.getTickValues = function getTickValues(tickValues, axis) {
+        return tickValues ? tickValues : axis ? axis.tickValues() : undefined;
+    };
+    Axis.prototype.getXAxisTickValues = function getXAxisTickValues() {
+        return this.getTickValues(this.owner.config.axis_x_tick_values, this.owner.xAxis);
+    };
+    Axis.prototype.getYAxisTickValues = function getYAxisTickValues() {
+        return this.getTickValues(this.owner.config.axis_y_tick_values, this.owner.yAxis);
+    };
+    Axis.prototype.getY2AxisTickValues = function getY2AxisTickValues() {
+        return this.getTickValues(this.owner.config.axis_y2_tick_values, this.owner.y2Axis);
+    };
+    Axis.prototype.getLabelOptionByAxisId = function getLabelOptionByAxisId(axisId) {
+        var $$ = this.owner,
+            config = $$.config,
+            option;
+        if (axisId === 'y') {
+            option = config.axis_y_label;
+        } else if (axisId === 'y2') {
+            option = config.axis_y2_label;
+        } else if (axisId === 'x') {
+            option = config.axis_x_label;
+        }
+        return option;
+    };
+    Axis.prototype.getLabelText = function getLabelText(axisId) {
+        var option = this.getLabelOptionByAxisId(axisId);
+        return isString(option) ? option : option ? option.text : null;
+    };
+    Axis.prototype.setLabelText = function setLabelText(axisId, text) {
+        var $$ = this.owner,
+            config = $$.config,
+            option = this.getLabelOptionByAxisId(axisId);
+        if (isString(option)) {
+            if (axisId === 'y') {
+                config.axis_y_label = text;
+            } else if (axisId === 'y2') {
+                config.axis_y2_label = text;
+            } else if (axisId === 'x') {
+                config.axis_x_label = text;
+            }
+        } else if (option) {
+            option.text = text;
+        }
+    };
+    Axis.prototype.getLabelPosition = function getLabelPosition(axisId, defaultPosition) {
+        var option = this.getLabelOptionByAxisId(axisId),
+            position = option && (typeof option === 'undefined' ? 'undefined' : _typeof(option)) === 'object' && option.position ? option.position : defaultPosition;
+        return {
+            isInner: position.indexOf('inner') >= 0,
+            isOuter: position.indexOf('outer') >= 0,
+            isLeft: position.indexOf('left') >= 0,
+            isCenter: position.indexOf('center') >= 0,
+            isRight: position.indexOf('right') >= 0,
+            isTop: position.indexOf('top') >= 0,
+            isMiddle: position.indexOf('middle') >= 0,
+            isBottom: position.indexOf('bottom') >= 0
+        };
+    };
+    Axis.prototype.getXAxisLabelPosition = function getXAxisLabelPosition() {
+        return this.getLabelPosition('x', this.owner.config.axis_rotated ? 'inner-top' : 'inner-right');
+    };
+    Axis.prototype.getYAxisLabelPosition = function getYAxisLabelPosition() {
+        return this.getLabelPosition('y', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top');
+    };
+    Axis.prototype.getY2AxisLabelPosition = function getY2AxisLabelPosition() {
+        return this.getLabelPosition('y2', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top');
+    };
+    Axis.prototype.getLabelPositionById = function getLabelPositionById(id) {
+        return id === 'y2' ? this.getY2AxisLabelPosition() : id === 'y' ? this.getYAxisLabelPosition() : this.getXAxisLabelPosition();
+    };
+    Axis.prototype.textForXAxisLabel = function textForXAxisLabel() {
+        return this.getLabelText('x');
+    };
+    Axis.prototype.textForYAxisLabel = function textForYAxisLabel() {
+        return this.getLabelText('y');
+    };
+    Axis.prototype.textForY2AxisLabel = function textForY2AxisLabel() {
+        return this.getLabelText('y2');
+    };
+    Axis.prototype.xForAxisLabel = function xForAxisLabel(forHorizontal, position) {
+        var $$ = this.owner;
+        if (forHorizontal) {
+            return position.isLeft ? 0 : position.isCenter ? $$.width / 2 : $$.width;
+        } else {
+            return position.isBottom ? -$$.height : position.isMiddle ? -$$.height / 2 : 0;
+        }
+    };
+    Axis.prototype.dxForAxisLabel = function dxForAxisLabel(forHorizontal, position) {
+        if (forHorizontal) {
+            return position.isLeft ? "0.5em" : position.isRight ? "-0.5em" : "0";
+        } else {
+            return position.isTop ? "-0.5em" : position.isBottom ? "0.5em" : "0";
+        }
+    };
+    Axis.prototype.textAnchorForAxisLabel = function textAnchorForAxisLabel(forHorizontal, position) {
+        if (forHorizontal) {
+            return position.isLeft ? 'start' : position.isCenter ? 'middle' : 'end';
+        } else {
+            return position.isBottom ? 'start' : position.isMiddle ? 'middle' : 'end';
+        }
+    };
+    Axis.prototype.xForXAxisLabel = function xForXAxisLabel() {
+        return this.xForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition());
+    };
+    Axis.prototype.xForYAxisLabel = function xForYAxisLabel() {
+        return this.xForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition());
+    };
+    Axis.prototype.xForY2AxisLabel = function xForY2AxisLabel() {
+        return this.xForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition());
+    };
+    Axis.prototype.dxForXAxisLabel = function dxForXAxisLabel() {
+        return this.dxForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition());
+    };
+    Axis.prototype.dxForYAxisLabel = function dxForYAxisLabel() {
+        return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition());
+    };
+    Axis.prototype.dxForY2AxisLabel = function dxForY2AxisLabel() {
+        return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition());
+    };
+    Axis.prototype.dyForXAxisLabel = function dyForXAxisLabel() {
+        var $$ = this.owner,
+            config = $$.config,
+            position = this.getXAxisLabelPosition();
+        if (config.axis_rotated) {
+            return position.isInner ? "1.2em" : -25 - ($$.config.axis_x_inner ? 0 : this.getMaxTickWidth('x'));
+        } else {
+            return position.isInner ? "-0.5em" : config.axis_x_height ? config.axis_x_height - 10 : "3em";
+        }
+    };
+    Axis.prototype.dyForYAxisLabel = function dyForYAxisLabel() {
+        var $$ = this.owner,
+            position = this.getYAxisLabelPosition();
+        if ($$.config.axis_rotated) {
+            return position.isInner ? "-0.5em" : "3em";
+        } else {
+            return position.isInner ? "1.2em" : -10 - ($$.config.axis_y_inner ? 0 : this.getMaxTickWidth('y') + 10);
+        }
+    };
+    Axis.prototype.dyForY2AxisLabel = function dyForY2AxisLabel() {
+        var $$ = this.owner,
+            position = this.getY2AxisLabelPosition();
+        if ($$.config.axis_rotated) {
+            return position.isInner ? "1.2em" : "-2.2em";
+        } else {
+            return position.isInner ? "-0.5em" : 15 + ($$.config.axis_y2_inner ? 0 : this.getMaxTickWidth('y2') + 15);
+        }
+    };
+    Axis.prototype.textAnchorForXAxisLabel = function textAnchorForXAxisLabel() {
+        var $$ = this.owner;
+        return this.textAnchorForAxisLabel(!$$.config.axis_rotated, this.getXAxisLabelPosition());
+    };
+    Axis.prototype.textAnchorForYAxisLabel = function textAnchorForYAxisLabel() {
+        var $$ = this.owner;
+        return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getYAxisLabelPosition());
+    };
+    Axis.prototype.textAnchorForY2AxisLabel = function textAnchorForY2AxisLabel() {
+        var $$ = this.owner;
+        return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getY2AxisLabelPosition());
+    };
+    Axis.prototype.getMaxTickWidth = function getMaxTickWidth(id, withoutRecompute) {
+        var $$ = this.owner,
+            config = $$.config,
+            maxWidth = 0,
+            targetsToShow,
+            scale,
+            axis,
+            dummy,
+            svg;
+        if (withoutRecompute && $$.currentMaxTickWidths[id]) {
+            return $$.currentMaxTickWidths[id];
+        }
+        if ($$.svg) {
+            targetsToShow = $$.filterTargetsToShow($$.data.targets);
+            if (id === 'y') {
+                scale = $$.y.copy().domain($$.getYDomain(targetsToShow, 'y'));
+                axis = this.getYAxis(scale, $$.yOrient, config.axis_y_tick_format, $$.yAxisTickValues, false, true, true);
+            } else if (id === 'y2') {
+                scale = $$.y2.copy().domain($$.getYDomain(targetsToShow, 'y2'));
+                axis = this.getYAxis(scale, $$.y2Orient, config.axis_y2_tick_format, $$.y2AxisTickValues, false, true, true);
+            } else {
+                scale = $$.x.copy().domain($$.getXDomain(targetsToShow));
+                axis = this.getXAxis(scale, $$.xOrient, $$.xAxisTickFormat, $$.xAxisTickValues, false, true, true);
+                this.updateXAxisTickValues(targetsToShow, axis);
+            }
+            dummy = $$.d3.select('body').append('div').classed('c3', true);
+            svg = dummy.append("svg").style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0), svg.append('g').call(axis).each(function () {
+                $$.d3.select(this).selectAll('text').each(function () {
+                    var box = this.getBoundingClientRect();
+                    if (maxWidth < box.width) {
+                        maxWidth = box.width;
+                    }
+                });
+                dummy.remove();
+            });
+        }
+        $$.currentMaxTickWidths[id] = maxWidth <= 0 ? $$.currentMaxTickWidths[id] : maxWidth;
+        return $$.currentMaxTickWidths[id];
+    };
+
+    Axis.prototype.updateLabels = function updateLabels(withTransition) {
+        var $$ = this.owner;
+        var axisXLabel = $$.main.select('.' + CLASS.axisX + ' .' + CLASS.axisXLabel),
+            axisYLabel = $$.main.select('.' + CLASS.axisY + ' .' + CLASS.axisYLabel),
+            axisY2Label = $$.main.select('.' + CLASS.axisY2 + ' .' + CLASS.axisY2Label);
+        (withTransition ? axisXLabel.transition() : axisXLabel).attr("x", this.xForXAxisLabel.bind(this)).attr("dx", this.dxForXAxisLabel.bind(this)).attr("dy", this.dyForXAxisLabel.bind(this)).text(this.textForXAxisLabel.bind(this));
+        (withTransition ? axisYLabel.transition() : axisYLabel).attr("x", this.xForYAxisLabel.bind(this)).attr("dx", this.dxForYAxisLabel.bind(this)).attr("dy", this.dyForYAxisLabel.bind(this)).text(this.textForYAxisLabel.bind(this));
+        (withTransition ? axisY2Label.transition() : axisY2Label).attr("x", this.xForY2AxisLabel.bind(this)).attr("dx", this.dxForY2AxisLabel.bind(this)).attr("dy", this.dyForY2AxisLabel.bind(this)).text(this.textForY2AxisLabel.bind(this));
+    };
+    Axis.prototype.getPadding = function getPadding(padding, key, defaultValue, domainLength) {
+        var p = typeof padding === 'number' ? padding : padding[key];
+        if (!isValue(p)) {
+            return defaultValue;
+        }
+        if (padding.unit === 'ratio') {
+            return padding[key] * domainLength;
+        }
+        // assume padding is pixels if unit is not specified
+        return this.convertPixelsToAxisPadding(p, domainLength);
+    };
+    Axis.prototype.convertPixelsToAxisPadding = function convertPixelsToAxisPadding(pixels, domainLength) {
+        var $$ = this.owner,
+            length = $$.config.axis_rotated ? $$.width : $$.height;
+        return domainLength * (pixels / length);
+    };
+    Axis.prototype.generateTickValues = function generateTickValues(values, tickCount, forTimeSeries) {
+        var tickValues = values,
+            targetCount,
+            start,
+            end,
+            count,
+            interval,
+            i,
+            tickValue;
+        if (tickCount) {
+            targetCount = isFunction(tickCount) ? tickCount() : tickCount;
+            // compute ticks according to tickCount
+            if (targetCount === 1) {
+                tickValues = [values[0]];
+            } else if (targetCount === 2) {
+                tickValues = [values[0], values[values.length - 1]];
+            } else if (targetCount > 2) {
+                count = targetCount - 2;
+                start = values[0];
+                end = values[values.length - 1];
+                interval = (end - start) / (count + 1);
+                // re-construct unique values
+                tickValues = [start];
+                for (i = 0; i < count; i++) {
+                    tickValue = +start + interval * (i + 1);
+                    tickValues.push(forTimeSeries ? new Date(tickValue) : tickValue);
+                }
+                tickValues.push(end);
+            }
+        }
+        if (!forTimeSeries) {
+            tickValues = tickValues.sort(function (a, b) {
+                return a - b;
+            });
+        }
+        return tickValues;
+    };
+    Axis.prototype.generateTransitions = function generateTransitions(duration) {
+        var $$ = this.owner,
+            axes = $$.axes;
+        return {
+            axisX: duration ? axes.x.transition().duration(duration) : axes.x,
+            axisY: duration ? axes.y.transition().duration(duration) : axes.y,
+            axisY2: duration ? axes.y2.transition().duration(duration) : axes.y2,
+            axisSubX: duration ? axes.subx.transition().duration(duration) : axes.subx
+        };
+    };
+    Axis.prototype.redraw = function redraw(duration, isHidden) {
+        var $$ = this.owner,
+            transition = duration ? $$.d3.transition().duration(duration) : null;
+        $$.axes.x.style("opacity", isHidden ? 0 : 1).call($$.xAxis, transition);
+        $$.axes.y.style("opacity", isHidden ? 0 : 1).call($$.yAxis, transition);
+        $$.axes.y2.style("opacity", isHidden ? 0 : 1).call($$.y2Axis, transition);
+        $$.axes.subx.style("opacity", isHidden ? 0 : 1).call($$.subXAxis, transition);
+    };
+
+    var c3 = {
+        version: "0.6.7",
+        chart: {
+            fn: Chart.prototype,
+            internal: {
+                fn: ChartInternal.prototype,
+                axis: {
+                    fn: Axis.prototype,
+                    internal: {
+                        fn: AxisInternal.prototype
+                    }
+                }
+            }
+        },
+        generate: function generate(config) {
+            return new Chart(config);
+        }
+    };
+
+    ChartInternal.prototype.beforeInit = function () {
+        // can do something
+    };
+    ChartInternal.prototype.afterInit = function () {
+        // can do something
+    };
+    ChartInternal.prototype.init = function () {
+        var $$ = this,
+            config = $$.config;
+
+        $$.initParams();
+
+        if (config.data_url) {
+            $$.convertUrlToData(config.data_url, config.data_mimeType, config.data_headers, config.data_keys, $$.initWithData);
+        } else if (config.data_json) {
+            $$.initWithData($$.convertJsonToData(config.data_json, config.data_keys));
+        } else if (config.data_rows) {
+            $$.initWithData($$.convertRowsToData(config.data_rows));
+        } else if (config.data_columns) {
+            $$.initWithData($$.convertColumnsToData(config.data_columns));
+        } else {
+            throw Error('url or json or rows or columns is required.');
+        }
+    };
+
+    ChartInternal.prototype.initParams = function () {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config;
+
+        // MEMO: clipId needs to be unique because it conflicts when multiple charts exist
+        $$.clipId = "c3-" + +new Date() + '-clip';
+        $$.clipIdForXAxis = $$.clipId + '-xaxis';
+        $$.clipIdForYAxis = $$.clipId + '-yaxis';
+        $$.clipIdForGrid = $$.clipId + '-grid';
+        $$.clipIdForSubchart = $$.clipId + '-subchart';
+        $$.clipPath = $$.getClipPath($$.clipId);
+        $$.clipPathForXAxis = $$.getClipPath($$.clipIdForXAxis);
+        $$.clipPathForYAxis = $$.getClipPath($$.clipIdForYAxis);
+        $$.clipPathForGrid = $$.getClipPath($$.clipIdForGrid);
+        $$.clipPathForSubchart = $$.getClipPath($$.clipIdForSubchart);
+
+        $$.dragStart = null;
+        $$.dragging = false;
+        $$.flowing = false;
+        $$.cancelClick = false;
+        $$.mouseover = false;
+        $$.transiting = false;
+
+        $$.color = $$.generateColor();
+        $$.levelColor = $$.generateLevelColor();
+
+        $$.dataTimeParse = (config.data_xLocaltime ? d3.timeParse : d3.utcParse)($$.config.data_xFormat);
+        $$.axisTimeFormat = config.axis_x_localtime ? d3.timeFormat : d3.utcFormat;
+        $$.defaultAxisTimeFormat = function (date) {
+            if (date.getMilliseconds()) {
+                return d3.timeFormat(".%L")(date);
+            }
+            if (date.getSeconds()) {
+                return d3.timeFormat(":%S")(date);
+            }
+            if (date.getMinutes()) {
+                return d3.timeFormat("%I:%M")(date);
+            }
+            if (date.getHours()) {
+                return d3.timeFormat("%I %p")(date);
+            }
+            if (date.getDay() && date.getDate() !== 1) {
+                return d3.timeFormat("%-m/%-d")(date);
+            }
+            if (date.getDate() !== 1) {
+                return d3.timeFormat("%-m/%-d")(date);
+            }
+            if (date.getMonth()) {
+                return d3.timeFormat("%-m/%-d")(date);
+            }
+            return d3.timeFormat("%Y/%-m/%-d")(date);
+        };
+        $$.hiddenTargetIds = [];
+        $$.hiddenLegendIds = [];
+        $$.focusedTargetIds = [];
+        $$.defocusedTargetIds = [];
+
+        $$.xOrient = config.axis_rotated ? config.axis_x_inner ? "right" : "left" : config.axis_x_inner ? "top" : "bottom";
+        $$.yOrient = config.axis_rotated ? config.axis_y_inner ? "top" : "bottom" : config.axis_y_inner ? "right" : "left";
+        $$.y2Orient = config.axis_rotated ? config.axis_y2_inner ? "bottom" : "top" : config.axis_y2_inner ? "left" : "right";
+        $$.subXOrient = config.axis_rotated ? "left" : "bottom";
+
+        $$.isLegendRight = config.legend_position === 'right';
+        $$.isLegendInset = config.legend_position === 'inset';
+        $$.isLegendTop = config.legend_inset_anchor === 'top-left' || config.legend_inset_anchor === 'top-right';
+        $$.isLegendLeft = config.legend_inset_anchor === 'top-left' || config.legend_inset_anchor === 'bottom-left';
+        $$.legendStep = 0;
+        $$.legendItemWidth = 0;
+        $$.legendItemHeight = 0;
+
+        $$.currentMaxTickWidths = {
+            x: 0,
+            y: 0,
+            y2: 0
+        };
+
+        $$.rotated_padding_left = 30;
+        $$.rotated_padding_right = config.axis_rotated && !config.axis_x_show ? 0 : 30;
+        $$.rotated_padding_top = 5;
+
+        $$.withoutFadeIn = {};
+
+        $$.intervalForObserveInserted = undefined;
+
+        $$.axes.subx = d3.selectAll([]); // needs when excluding subchart.js
+    };
+
+    ChartInternal.prototype.initChartElements = function () {
+        if (this.initBar) {
+            this.initBar();
+        }
+        if (this.initLine) {
+            this.initLine();
+        }
+        if (this.initArc) {
+            this.initArc();
+        }
+        if (this.initGauge) {
+            this.initGauge();
+        }
+        if (this.initText) {
+            this.initText();
+        }
+    };
+
+    ChartInternal.prototype.initWithData = function (data) {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config;
+        var defs,
+            main,
+            binding = true;
+
+        $$.axis = new Axis($$);
+
+        if (!config.bindto) {
+            $$.selectChart = d3.selectAll([]);
+        } else if (typeof config.bindto.node === 'function') {
+            $$.selectChart = config.bindto;
+        } else {
+            $$.selectChart = d3.select(config.bindto);
+        }
+        if ($$.selectChart.empty()) {
+            $$.selectChart = d3.select(document.createElement('div')).style('opacity', 0);
+            $$.observeInserted($$.selectChart);
+            binding = false;
+        }
+        $$.selectChart.html("").classed("c3", true);
+
+        // Init data as targets
+        $$.data.xs = {};
+        $$.data.targets = $$.convertDataToTargets(data);
+
+        if (config.data_filter) {
+            $$.data.targets = $$.data.targets.filter(config.data_filter);
+        }
+
+        // Set targets to hide if needed
+        if (config.data_hide) {
+            $$.addHiddenTargetIds(config.data_hide === true ? $$.mapToIds($$.data.targets) : config.data_hide);
+        }
+        if (config.legend_hide) {
+            $$.addHiddenLegendIds(config.legend_hide === true ? $$.mapToIds($$.data.targets) : config.legend_hide);
+        }
+
+        // Init sizes and scales
+        $$.updateSizes();
+        $$.updateScales();
+
+        // Set domains for each scale
+        $$.x.domain(d3.extent($$.getXDomain($$.data.targets)));
+        $$.y.domain($$.getYDomain($$.data.targets, 'y'));
+        $$.y2.domain($$.getYDomain($$.data.targets, 'y2'));
+        $$.subX.domain($$.x.domain());
+        $$.subY.domain($$.y.domain());
+        $$.subY2.domain($$.y2.domain());
+
+        // Save original x domain for zoom update
+        $$.orgXDomain = $$.x.domain();
+
+        /*-- Basic Elements --*/
+
+        // Define svgs
+        $$.svg = $$.selectChart.append("svg").style("overflow", "hidden").on('mouseenter', function () {
+            return config.onmouseover.call($$);
+        }).on('mouseleave', function () {
+            return config.onmouseout.call($$);
+        });
+
+        if ($$.config.svg_classname) {
+            $$.svg.attr('class', $$.config.svg_classname);
+        }
+
+        // Define defs
+        defs = $$.svg.append("defs");
+        $$.clipChart = $$.appendClip(defs, $$.clipId);
+        $$.clipXAxis = $$.appendClip(defs, $$.clipIdForXAxis);
+        $$.clipYAxis = $$.appendClip(defs, $$.clipIdForYAxis);
+        $$.clipGrid = $$.appendClip(defs, $$.clipIdForGrid);
+        $$.clipSubchart = $$.appendClip(defs, $$.clipIdForSubchart);
+        $$.updateSvgSize();
+
+        // Define regions
+        main = $$.main = $$.svg.append("g").attr("transform", $$.getTranslate('main'));
+
+        if ($$.initPie) {
+            $$.initPie();
+        }
+        if ($$.initDragZoom) {
+            $$.initDragZoom();
+        }
+        if ($$.initSubchart) {
+            $$.initSubchart();
+        }
+        if ($$.initTooltip) {
+            $$.initTooltip();
+        }
+        if ($$.initLegend) {
+            $$.initLegend();
+        }
+        if ($$.initTitle) {
+            $$.initTitle();
+        }
+        if ($$.initZoom) {
+            $$.initZoom();
+        }
+
+        // Update selection based on size and scale
+        // TODO: currently this must be called after initLegend because of update of sizes, but it should be done in initSubchart.
+        if ($$.initSubchartBrush) {
+            $$.initSubchartBrush();
+        }
+
+        /*-- Main Region --*/
+
+        // text when empty
+        main.append("text").attr("class", CLASS.text + ' ' + CLASS.empty).attr("text-anchor", "middle") // horizontal centering of text at x position in all browsers.
+        .attr("dominant-baseline", "middle"); // vertical centering of text at y position in all browsers, except IE.
+
+        // Regions
+        $$.initRegion();
+
+        // Grids
+        $$.initGrid();
+
+        // Define g for chart area
+        main.append('g').attr("clip-path", $$.clipPath).attr('class', CLASS.chart);
+
+        // Grid lines
+        if (config.grid_lines_front) {
+            $$.initGridLines();
+        }
+
+        // Cover whole with rects for events
+        $$.initEventRect();
+
+        // Define g for chart
+        $$.initChartElements();
+
+        // Add Axis
+        $$.axis.init();
+
+        // Set targets
+        $$.updateTargets($$.data.targets);
+
+        // Set default extent if defined
+        if (config.axis_x_selection) {
+            $$.brush.selectionAsValue($$.getDefaultSelection());
+        }
+
+        // Draw with targets
+        if (binding) {
+            $$.updateDimension();
+            $$.config.oninit.call($$);
+            $$.redraw({
+                withTransition: false,
+                withTransform: true,
+                withUpdateXDomain: true,
+                withUpdateOrgXDomain: true,
+                withTransitionForAxis: false
+            });
+        }
+
+        // Bind resize event
+        $$.bindResize();
+
+        // export element of the chart
+        $$.api.element = $$.selectChart.node();
+    };
+
+    ChartInternal.prototype.smoothLines = function (el, type) {
+        var $$ = this;
+        if (type === 'grid') {
+            el.each(function () {
+                var g = $$.d3.select(this),
+                    x1 = g.attr('x1'),
+                    x2 = g.attr('x2'),
+                    y1 = g.attr('y1'),
+                    y2 = g.attr('y2');
+                g.attr({
+                    'x1': Math.ceil(x1),
+                    'x2': Math.ceil(x2),
+                    'y1': Math.ceil(y1),
+                    'y2': Math.ceil(y2)
+                });
+            });
+        }
+    };
+
+    ChartInternal.prototype.updateSizes = function () {
+        var $$ = this,
+            config = $$.config;
+        var legendHeight = $$.legend ? $$.getLegendHeight() : 0,
+            legendWidth = $$.legend ? $$.getLegendWidth() : 0,
+            legendHeightForBottom = $$.isLegendRight || $$.isLegendInset ? 0 : legendHeight,
+            hasArc = $$.hasArcType(),
+            xAxisHeight = config.axis_rotated || hasArc ? 0 : $$.getHorizontalAxisHeight('x'),
+            subchartHeight = config.subchart_show && !hasArc ? config.subchart_size_height + xAxisHeight : 0;
+
+        $$.currentWidth = $$.getCurrentWidth();
+        $$.currentHeight = $$.getCurrentHeight();
+
+        // for main
+        $$.margin = config.axis_rotated ? {
+            top: $$.getHorizontalAxisHeight('y2') + $$.getCurrentPaddingTop(),
+            right: hasArc ? 0 : $$.getCurrentPaddingRight(),
+            bottom: $$.getHorizontalAxisHeight('y') + legendHeightForBottom + $$.getCurrentPaddingBottom(),
+            left: subchartHeight + (hasArc ? 0 : $$.getCurrentPaddingLeft())
+        } : {
+            top: 4 + $$.getCurrentPaddingTop(), // for top tick text
+            right: hasArc ? 0 : $$.getCurrentPaddingRight(),
+            bottom: xAxisHeight + subchartHeight + legendHeightForBottom + $$.getCurrentPaddingBottom(),
+            left: hasArc ? 0 : $$.getCurrentPaddingLeft()
+        };
+
+        // for subchart
+        $$.margin2 = config.axis_rotated ? {
+            top: $$.margin.top,
+            right: NaN,
+            bottom: 20 + legendHeightForBottom,
+            left: $$.rotated_padding_left
+        } : {
+            top: $$.currentHeight - subchartHeight - legendHeightForBottom,
+            right: NaN,
+            bottom: xAxisHeight + legendHeightForBottom,
+            left: $$.margin.left
+        };
+
+        // for legend
+        $$.margin3 = {
+            top: 0,
+            right: NaN,
+            bottom: 0,
+            left: 0
+        };
+        if ($$.updateSizeForLegend) {
+            $$.updateSizeForLegend(legendHeight, legendWidth);
+        }
+
+        $$.width = $$.currentWidth - $$.margin.left - $$.margin.right;
+        $$.height = $$.currentHeight - $$.margin.top - $$.margin.bottom;
+        if ($$.width < 0) {
+            $$.width = 0;
+        }
+        if ($$.height < 0) {
+            $$.height = 0;
+        }
+
+        $$.width2 = config.axis_rotated ? $$.margin.left - $$.rotated_padding_left - $$.rotated_padding_right : $$.width;
+        $$.height2 = config.axis_rotated ? $$.height : $$.currentHeight - $$.margin2.top - $$.margin2.bottom;
+        if ($$.width2 < 0) {
+            $$.width2 = 0;
+        }
+        if ($$.height2 < 0) {
+            $$.height2 = 0;
+        }
+
+        // for arc
+        $$.arcWidth = $$.width - ($$.isLegendRight ? legendWidth + 10 : 0);
+        $$.arcHeight = $$.height - ($$.isLegendRight ? 0 : 10);
+        if ($$.hasType('gauge') && !config.gauge_fullCircle) {
+            $$.arcHeight += $$.height - $$.getGaugeLabelHeight();
+        }
+        if ($$.updateRadius) {
+            $$.updateRadius();
+        }
+
+        if ($$.isLegendRight && hasArc) {
+            $$.margin3.left = $$.arcWidth / 2 + $$.radiusExpanded * 1.1;
+        }
+    };
+
+    ChartInternal.prototype.updateTargets = function (targets) {
+        var $$ = this;
+
+        /*-- Main --*/
+
+        //-- Text --//
+        $$.updateTargetsForText(targets);
+
+        //-- Bar --//
+        $$.updateTargetsForBar(targets);
+
+        //-- Line --//
+        $$.updateTargetsForLine(targets);
+
+        //-- Arc --//
+        if ($$.hasArcType() && $$.updateTargetsForArc) {
+            $$.updateTargetsForArc(targets);
+        }
+
+        /*-- Sub --*/
+
+        if ($$.updateTargetsForSubchart) {
+            $$.updateTargetsForSubchart(targets);
+        }
+
+        // Fade-in each chart
+        $$.showTargets();
+    };
+    ChartInternal.prototype.showTargets = function () {
+        var $$ = this;
+        $$.svg.selectAll('.' + CLASS.target).filter(function (d) {
+            return $$.isTargetToShow(d.id);
+        }).transition().duration($$.config.transition_duration).style("opacity", 1);
+    };
+
+    ChartInternal.prototype.redraw = function (options, transitions) {
+        var $$ = this,
+            main = $$.main,
+            d3 = $$.d3,
+            config = $$.config;
+        var areaIndices = $$.getShapeIndices($$.isAreaType),
+            barIndices = $$.getShapeIndices($$.isBarType),
+            lineIndices = $$.getShapeIndices($$.isLineType);
+        var withY, withSubchart, withTransition, withTransitionForExit, withTransitionForAxis, withTransform, withUpdateXDomain, withUpdateOrgXDomain, withTrimXDomain, withLegend, withEventRect, withDimension, withUpdateXAxis;
+        var hideAxis = $$.hasArcType();
+        var drawArea, drawBar, drawLine, xForText, yForText;
+        var duration, durationForExit, durationForAxis;
+        var transitionsToWait, waitForDraw, flow, transition;
+        var targetsToShow = $$.filterTargetsToShow($$.data.targets),
+            tickValues,
+            i,
+            intervalForCulling,
+            xDomainForZoom;
+        var xv = $$.xv.bind($$),
+            cx,
+            cy;
+
+        options = options || {};
+        withY = getOption(options, "withY", true);
+        withSubchart = getOption(options, "withSubchart", true);
+        withTransition = getOption(options, "withTransition", true);
+        withTransform = getOption(options, "withTransform", false);
+        withUpdateXDomain = getOption(options, "withUpdateXDomain", false);
+        withUpdateOrgXDomain = getOption(options, "withUpdateOrgXDomain", false);
+        withTrimXDomain = getOption(options, "withTrimXDomain", true);
+        withUpdateXAxis = getOption(options, "withUpdateXAxis", withUpdateXDomain);
+        withLegend = getOption(options, "withLegend", false);
+        withEventRect = getOption(options, "withEventRect", true);
+        withDimension = getOption(options, "withDimension", true);
+        withTransitionForExit = getOption(options, "withTransitionForExit", withTransition);
+        withTransitionForAxis = getOption(options, "withTransitionForAxis", withTransition);
+
+        duration = withTransition ? config.transition_duration : 0;
+        durationForExit = withTransitionForExit ? duration : 0;
+        durationForAxis = withTransitionForAxis ? duration : 0;
+
+        transitions = transitions || $$.axis.generateTransitions(durationForAxis);
+
+        // update legend and transform each g
+        if (withLegend && config.legend_show) {
+            $$.updateLegend($$.mapToIds($$.data.targets), options, transitions);
+        } else if (withDimension) {
+            // need to update dimension (e.g. axis.y.tick.values) because y tick values should change
+            // no need to update axis in it because they will be updated in redraw()
+            $$.updateDimension(true);
+        }
+
+        // MEMO: needed for grids calculation
+        if ($$.isCategorized() && targetsToShow.length === 0) {
+            $$.x.domain([0, $$.axes.x.selectAll('.tick').size()]);
+        }
+
+        if (targetsToShow.length) {
+            $$.updateXDomain(targetsToShow, withUpdateXDomain, withUpdateOrgXDomain, withTrimXDomain);
+            if (!config.axis_x_tick_values) {
+                tickValues = $$.axis.updateXAxisTickValues(targetsToShow);
+            }
+        } else {
+            $$.xAxis.tickValues([]);
+            $$.subXAxis.tickValues([]);
+        }
+
+        if (config.zoom_rescale && !options.flow) {
+            xDomainForZoom = $$.x.orgDomain();
+        }
+
+        $$.y.domain($$.getYDomain(targetsToShow, 'y', xDomainForZoom));
+        $$.y2.domain($$.getYDomain(targetsToShow, 'y2', xDomainForZoom));
+
+        if (!config.axis_y_tick_values && config.axis_y_tick_count) {
+            $$.yAxis.tickValues($$.axis.generateTickValues($$.y.domain(), config.axis_y_tick_count));
+        }
+        if (!config.axis_y2_tick_values && config.axis_y2_tick_count) {
+            $$.y2Axis.tickValues($$.axis.generateTickValues($$.y2.domain(), config.axis_y2_tick_count));
+        }
+
+        // axes
+        $$.axis.redraw(durationForAxis, hideAxis);
+
+        // Update axis label
+        $$.axis.updateLabels(withTransition);
+
+        // show/hide if manual culling needed
+        if ((withUpdateXDomain || withUpdateXAxis) && targetsToShow.length) {
+            if (config.axis_x_tick_culling && tickValues) {
+                for (i = 1; i < tickValues.length; i++) {
+                    if (tickValues.length / i < config.axis_x_tick_culling_max) {
+                        intervalForCulling = i;
+                        break;
+                    }
+                }
+                $$.svg.selectAll('.' + CLASS.axisX + ' .tick text').each(function (e) {
+                    var index = tickValues.indexOf(e);
+                    if (index >= 0) {
+                        d3.select(this).style('display', index % intervalForCulling ? 'none' : 'block');
+                    }
+                });
+            } else {
+                $$.svg.selectAll('.' + CLASS.axisX + ' .tick text').style('display', 'block');
+            }
+        }
+
+        // setup drawer - MEMO: these must be called after axis updated
+        drawArea = $$.generateDrawArea ? $$.generateDrawArea(areaIndices, false) : undefined;
+        drawBar = $$.generateDrawBar ? $$.generateDrawBar(barIndices) : undefined;
+        drawLine = $$.generateDrawLine ? $$.generateDrawLine(lineIndices, false) : undefined;
+        xForText = $$.generateXYForText(areaIndices, barIndices, lineIndices, true);
+        yForText = $$.generateXYForText(areaIndices, barIndices, lineIndices, false);
+
+        // update circleY based on updated parameters
+        $$.updateCircleY();
+        // generate circle x/y functions depending on updated params
+        cx = ($$.config.axis_rotated ? $$.circleY : $$.circleX).bind($$);
+        cy = ($$.config.axis_rotated ? $$.circleX : $$.circleY).bind($$);
+
+        // Update sub domain
+        if (withY) {
+            $$.subY.domain($$.getYDomain(targetsToShow, 'y'));
+            $$.subY2.domain($$.getYDomain(targetsToShow, 'y2'));
+        }
+
+        // xgrid focus
+        $$.updateXgridFocus();
+
+        // Data empty label positioning and text.
+        main.select("text." + CLASS.text + '.' + CLASS.empty).attr("x", $$.width / 2).attr("y", $$.height / 2).text(config.data_empty_label_text).transition().style('opacity', targetsToShow.length ? 0 : 1);
+
+        // event rect
+        if (withEventRect) {
+            $$.redrawEventRect();
+        }
+
+        // grid
+        $$.updateGrid(duration);
+
+        // rect for regions
+        $$.updateRegion(duration);
+
+        // bars
+        $$.updateBar(durationForExit);
+
+        // lines, areas and cricles
+        $$.updateLine(durationForExit);
+        $$.updateArea(durationForExit);
+        $$.updateCircle(cx, cy);
+
+        // text
+        if ($$.hasDataLabel()) {
+            $$.updateText(xForText, yForText, durationForExit);
+        }
+
+        // title
+        if ($$.redrawTitle) {
+            $$.redrawTitle();
+        }
+
+        // arc
+        if ($$.redrawArc) {
+            $$.redrawArc(duration, durationForExit, withTransform);
+        }
+
+        // subchart
+        if ($$.redrawSubchart) {
+            $$.redrawSubchart(withSubchart, transitions, duration, durationForExit, areaIndices, barIndices, lineIndices);
+        }
+
+        // circles for select
+        main.selectAll('.' + CLASS.selectedCircles).filter($$.isBarType.bind($$)).selectAll('circle').remove();
+
+        if (options.flow) {
+            flow = $$.generateFlow({
+                targets: targetsToShow,
+                flow: options.flow,
+                duration: options.flow.duration,
+                drawBar: drawBar,
+                drawLine: drawLine,
+                drawArea: drawArea,
+                cx: cx,
+                cy: cy,
+                xv: xv,
+                xForText: xForText,
+                yForText: yForText
+            });
+        }
+
+        if ($$.isTabVisible()) {
+            // Only use transition if tab visible. See #938.
+            if (duration) {
+                // transition should be derived from one transition
+                transition = d3.transition().duration(duration);
+                transitionsToWait = [];
+                [$$.redrawBar(drawBar, true, transition), $$.redrawLine(drawLine, true, transition), $$.redrawArea(drawArea, true, transition), $$.redrawCircle(cx, cy, true, transition), $$.redrawText(xForText, yForText, options.flow, true, transition), $$.redrawRegion(true, transition), $$.redrawGrid(true, transition)].forEach(function (transitions) {
+                    transitions.forEach(function (transition) {
+                        transitionsToWait.push(transition);
+                    });
+                });
+                // Wait for end of transitions to call flow and onrendered callback
+                waitForDraw = $$.generateWait();
+                transitionsToWait.forEach(function (t) {
+                    waitForDraw.add(t);
+                });
+                waitForDraw(function () {
+                    if (flow) {
+                        flow();
+                    }
+                    if (config.onrendered) {
+                        config.onrendered.call($$);
+                    }
+                });
+            } else {
+                $$.redrawBar(drawBar);
+                $$.redrawLine(drawLine);
+                $$.redrawArea(drawArea);
+                $$.redrawCircle(cx, cy);
+                $$.redrawText(xForText, yForText, options.flow);
+                $$.redrawRegion();
+                $$.redrawGrid();
+                if (flow) {
+                    flow();
+                }
+                if (config.onrendered) {
+                    config.onrendered.call($$);
+                }
+            }
+        }
+
+        // update fadein condition
+        $$.mapToIds($$.data.targets).forEach(function (id) {
+            $$.withoutFadeIn[id] = true;
+        });
+    };
+
+    ChartInternal.prototype.updateAndRedraw = function (options) {
+        var $$ = this,
+            config = $$.config,
+            transitions;
+        options = options || {};
+        // same with redraw
+        options.withTransition = getOption(options, "withTransition", true);
+        options.withTransform = getOption(options, "withTransform", false);
+        options.withLegend = getOption(options, "withLegend", false);
+        // NOT same with redraw
+        options.withUpdateXDomain = getOption(options, "withUpdateXDomain", true);
+        options.withUpdateOrgXDomain = getOption(options, "withUpdateOrgXDomain", true);
+        options.withTransitionForExit = false;
+        options.withTransitionForTransform = getOption(options, "withTransitionForTransform", options.withTransition);
+        // MEMO: this needs to be called before updateLegend and it means this ALWAYS needs to be called)
+        $$.updateSizes();
+        // MEMO: called in updateLegend in redraw if withLegend
+        if (!(options.withLegend && config.legend_show)) {
+            transitions = $$.axis.generateTransitions(options.withTransitionForAxis ? config.transition_duration : 0);
+            // Update scales
+            $$.updateScales();
+            $$.updateSvgSize();
+            // Update g positions
+            $$.transformAll(options.withTransitionForTransform, transitions);
+        }
+        // Draw with new sizes & scales
+        $$.redraw(options, transitions);
+    };
+    ChartInternal.prototype.redrawWithoutRescale = function () {
+        this.redraw({
+            withY: false,
+            withSubchart: false,
+            withEventRect: false,
+            withTransitionForAxis: false
+        });
+    };
+
+    ChartInternal.prototype.isTimeSeries = function () {
+        return this.config.axis_x_type === 'timeseries';
+    };
+    ChartInternal.prototype.isCategorized = function () {
+        return this.config.axis_x_type.indexOf('categor') >= 0;
+    };
+    ChartInternal.prototype.isCustomX = function () {
+        var $$ = this,
+            config = $$.config;
+        return !$$.isTimeSeries() && (config.data_x || notEmpty(config.data_xs));
+    };
+
+    ChartInternal.prototype.isTimeSeriesY = function () {
+        return this.config.axis_y_type === 'timeseries';
+    };
+
+    ChartInternal.prototype.getTranslate = function (target) {
+        var $$ = this,
+            config = $$.config,
+            x,
+            y;
+        if (target === 'main') {
+            x = asHalfPixel($$.margin.left);
+            y = asHalfPixel($$.margin.top);
+        } else if (target === 'context') {
+            x = asHalfPixel($$.margin2.left);
+            y = asHalfPixel($$.margin2.top);
+        } else if (target === 'legend') {
+            x = $$.margin3.left;
+            y = $$.margin3.top;
+        } else if (target === 'x') {
+            x = 0;
+            y = config.axis_rotated ? 0 : $$.height;
+        } else if (target === 'y') {
+            x = 0;
+            y = config.axis_rotated ? $$.height : 0;
+        } else if (target === 'y2') {
+            x = config.axis_rotated ? 0 : $$.width;
+            y = config.axis_rotated ? 1 : 0;
+        } else if (target === 'subx') {
+            x = 0;
+            y = config.axis_rotated ? 0 : $$.height2;
+        } else if (target === 'arc') {
+            x = $$.arcWidth / 2;
+            y = $$.arcHeight / 2 - ($$.hasType('gauge') ? 6 : 0); // to prevent wrong display of min and max label
+        }
+        return "translate(" + x + "," + y + ")";
+    };
+    ChartInternal.prototype.initialOpacity = function (d) {
+        return d.value !== null && this.withoutFadeIn[d.id] ? 1 : 0;
+    };
+    ChartInternal.prototype.initialOpacityForCircle = function (d) {
+        return d.value !== null && this.withoutFadeIn[d.id] ? this.opacityForCircle(d) : 0;
+    };
+    ChartInternal.prototype.opacityForCircle = function (d) {
+        var isPointShouldBeShown = isFunction(this.config.point_show) ? this.config.point_show(d) : this.config.point_show;
+        var opacity = isPointShouldBeShown ? 1 : 0;
+        return isValue(d.value) ? this.isScatterType(d) ? 0.5 : opacity : 0;
+    };
+    ChartInternal.prototype.opacityForText = function () {
+        return this.hasDataLabel() ? 1 : 0;
+    };
+    ChartInternal.prototype.xx = function (d) {
+        return d ? this.x(d.x) : null;
+    };
+    ChartInternal.prototype.xv = function (d) {
+        var $$ = this,
+            value = d.value;
+        if ($$.isTimeSeries()) {
+            value = $$.parseDate(d.value);
+        } else if ($$.isCategorized() && typeof d.value === 'string') {
+            value = $$.config.axis_x_categories.indexOf(d.value);
+        }
+        return Math.ceil($$.x(value));
+    };
+    ChartInternal.prototype.yv = function (d) {
+        var $$ = this,
+            yScale = d.axis && d.axis === 'y2' ? $$.y2 : $$.y;
+        return Math.ceil(yScale(d.value));
+    };
+    ChartInternal.prototype.subxx = function (d) {
+        return d ? this.subX(d.x) : null;
+    };
+
+    ChartInternal.prototype.transformMain = function (withTransition, transitions) {
+        var $$ = this,
+            xAxis,
+            yAxis,
+            y2Axis;
+        if (transitions && transitions.axisX) {
+            xAxis = transitions.axisX;
+        } else {
+            xAxis = $$.main.select('.' + CLASS.axisX);
+            if (withTransition) {
+                xAxis = xAxis.transition();
+            }
+        }
+        if (transitions && transitions.axisY) {
+            yAxis = transitions.axisY;
+        } else {
+            yAxis = $$.main.select('.' + CLASS.axisY);
+            if (withTransition) {
+                yAxis = yAxis.transition();
+            }
+        }
+        if (transitions && transitions.axisY2) {
+            y2Axis = transitions.axisY2;
+        } else {
+            y2Axis = $$.main.select('.' + CLASS.axisY2);
+            if (withTransition) {
+                y2Axis = y2Axis.transition();
+            }
+        }
+        (withTransition ? $$.main.transition() : $$.main).attr("transform", $$.getTranslate('main'));
+        xAxis.attr("transform", $$.getTranslate('x'));
+        yAxis.attr("transform", $$.getTranslate('y'));
+        y2Axis.attr("transform", $$.getTranslate('y2'));
+        $$.main.select('.' + CLASS.chartArcs).attr("transform", $$.getTranslate('arc'));
+    };
+    ChartInternal.prototype.transformAll = function (withTransition, transitions) {
+        var $$ = this;
+        $$.transformMain(withTransition, transitions);
+        if ($$.config.subchart_show) {
+            $$.transformContext(withTransition, transitions);
+        }
+        if ($$.legend) {
+            $$.transformLegend(withTransition);
+        }
+    };
+
+    ChartInternal.prototype.updateSvgSize = function () {
+        var $$ = this,
+            brush = $$.svg.select(".c3-brush .overlay");
+        $$.svg.attr('width', $$.currentWidth).attr('height', $$.currentHeight);
+        $$.svg.selectAll(['#' + $$.clipId, '#' + $$.clipIdForGrid]).select('rect').attr('width', $$.width).attr('height', $$.height);
+        $$.svg.select('#' + $$.clipIdForXAxis).select('rect').attr('x', $$.getXAxisClipX.bind($$)).attr('y', $$.getXAxisClipY.bind($$)).attr('width', $$.getXAxisClipWidth.bind($$)).attr('height', $$.getXAxisClipHeight.bind($$));
+        $$.svg.select('#' + $$.clipIdForYAxis).select('rect').attr('x', $$.getYAxisClipX.bind($$)).attr('y', $$.getYAxisClipY.bind($$)).attr('width', $$.getYAxisClipWidth.bind($$)).attr('height', $$.getYAxisClipHeight.bind($$));
+        $$.svg.select('#' + $$.clipIdForSubchart).select('rect').attr('width', $$.width).attr('height', brush.size() ? brush.attr('height') : 0);
+        // MEMO: parent div's height will be bigger than svg when <!DOCTYPE html>
+        $$.selectChart.style('max-height', $$.currentHeight + "px");
+    };
+
+    ChartInternal.prototype.updateDimension = function (withoutAxis) {
+        var $$ = this;
+        if (!withoutAxis) {
+            if ($$.config.axis_rotated) {
+                $$.axes.x.call($$.xAxis);
+                $$.axes.subx.call($$.subXAxis);
+            } else {
+                $$.axes.y.call($$.yAxis);
+                $$.axes.y2.call($$.y2Axis);
+            }
+        }
+        $$.updateSizes();
+        $$.updateScales();
+        $$.updateSvgSize();
+        $$.transformAll(false);
+    };
+
+    ChartInternal.prototype.observeInserted = function (selection) {
+        var $$ = this,
+            observer;
+        if (typeof MutationObserver === 'undefined') {
+            window.console.error("MutationObserver not defined.");
+            return;
+        }
+        observer = new MutationObserver(function (mutations) {
+            mutations.forEach(function (mutation) {
+                if (mutation.type === 'childList' && mutation.previousSibling) {
+                    observer.disconnect();
+                    // need to wait for completion of load because size calculation requires the actual sizes determined after that completion
+                    $$.intervalForObserveInserted = window.setInterval(function () {
+                        // parentNode will NOT be null when completed
+                        if (selection.node().parentNode) {
+                            window.clearInterval($$.intervalForObserveInserted);
+                            $$.updateDimension();
+                            if ($$.brush) {
+                                $$.brush.update();
+                            }
+                            $$.config.oninit.call($$);
+                            $$.redraw({
+                                withTransform: true,
+                                withUpdateXDomain: true,
+                                withUpdateOrgXDomain: true,
+                                withTransition: false,
+                                withTransitionForTransform: false,
+                                withLegend: true
+                            });
+                            selection.transition().style('opacity', 1);
+                        }
+                    }, 10);
+                }
+            });
+        });
+        observer.observe(selection.node(), {
+            attributes: true,
+            childList: true,
+            characterData: true
+        });
+    };
+
+    ChartInternal.prototype.bindResize = function () {
+        var $$ = this,
+            config = $$.config;
+
+        $$.resizeFunction = $$.generateResize(); // need to call .remove
+
+        $$.resizeFunction.add(function () {
+            config.onresize.call($$);
+        });
+        if (config.resize_auto) {
+            $$.resizeFunction.add(function () {
+                if ($$.resizeTimeout !== undefined) {
+                    window.clearTimeout($$.resizeTimeout);
+                }
+                $$.resizeTimeout = window.setTimeout(function () {
+                    delete $$.resizeTimeout;
+                    $$.updateAndRedraw({
+                        withUpdateXDomain: false,
+                        withUpdateOrgXDomain: false,
+                        withTransition: false,
+                        withTransitionForTransform: false,
+                        withLegend: true
+                    });
+                    if ($$.brush) {
+                        $$.brush.update();
+                    }
+                }, 100);
+            });
+        }
+        $$.resizeFunction.add(function () {
+            config.onresized.call($$);
+        });
+
+        $$.resizeIfElementDisplayed = function () {
+            // if element not displayed skip it
+            if ($$.api == null || !$$.api.element.offsetParent) {
+                return;
+            }
+
+            $$.resizeFunction();
+        };
+
+        if (window.attachEvent) {
+            window.attachEvent('onresize', $$.resizeIfElementDisplayed);
+        } else if (window.addEventListener) {
+            window.addEventListener('resize', $$.resizeIfElementDisplayed, false);
+        } else {
+            // fallback to this, if this is a very old browser
+            var wrapper = window.onresize;
+            if (!wrapper) {
+                // create a wrapper that will call all charts
+                wrapper = $$.generateResize();
+            } else if (!wrapper.add || !wrapper.remove) {
+                // there is already a handler registered, make sure we call it too
+                wrapper = $$.generateResize();
+                wrapper.add(window.onresize);
+            }
+            // add this graph to the wrapper, we will be removed if the user calls destroy
+            wrapper.add($$.resizeFunction);
+            window.onresize = function () {
+                // if element not displayed skip it
+                if (!$$.api.element.offsetParent) {
+                    return;
+                }
+
+                wrapper();
+            };
+        }
+    };
+
+    ChartInternal.prototype.generateResize = function () {
+        var resizeFunctions = [];
+
+        function callResizeFunctions() {
+            resizeFunctions.forEach(function (f) {
+                f();
+            });
+        }
+        callResizeFunctions.add = function (f) {
+            resizeFunctions.push(f);
+        };
+        callResizeFunctions.remove = function (f) {
+            for (var i = 0; i < resizeFunctions.length; i++) {
+                if (resizeFunctions[i] === f) {
+                    resizeFunctions.splice(i, 1);
+                    break;
+                }
+            }
+        };
+        return callResizeFunctions;
+    };
+
+    ChartInternal.prototype.endall = function (transition, callback) {
+        var n = 0;
+        transition.each(function () {
+            ++n;
+        }).on("end", function () {
+            if (! --n) {
+                callback.apply(this, arguments);
+            }
+        });
+    };
+    ChartInternal.prototype.generateWait = function () {
+        var transitionsToWait = [],
+            f = function f(callback) {
+            var timer = setInterval(function () {
+                var done = 0;
+                transitionsToWait.forEach(function (t) {
+                    if (t.empty()) {
+                        done += 1;
+                        return;
+                    }
+                    try {
+                        t.transition();
+                    } catch (e) {
+                        done += 1;
+                    }
+                });
+                if (done === transitionsToWait.length) {
+                    clearInterval(timer);
+                    if (callback) {
+                        callback();
+                    }
+                }
+            }, 50);
+        };
+        f.add = function (transition) {
+            transitionsToWait.push(transition);
+        };
+        return f;
+    };
+
+    ChartInternal.prototype.parseDate = function (date) {
+        var $$ = this,
+            parsedDate;
+        if (date instanceof Date) {
+            parsedDate = date;
+        } else if (typeof date === 'string') {
+            parsedDate = $$.dataTimeParse(date);
+        } else if ((typeof date === 'undefined' ? 'undefined' : _typeof(date)) === 'object') {
+            parsedDate = new Date(+date);
+        } else if (typeof date === 'number' && !isNaN(date)) {
+            parsedDate = new Date(+date);
+        }
+        if (!parsedDate || isNaN(+parsedDate)) {
+            window.console.error("Failed to parse x '" + date + "' to Date object");
+        }
+        return parsedDate;
+    };
+
+    ChartInternal.prototype.isTabVisible = function () {
+        var hidden;
+        if (typeof document.hidden !== "undefined") {
+            // Opera 12.10 and Firefox 18 and later support
+            hidden = "hidden";
+        } else if (typeof document.mozHidden !== "undefined") {
+            hidden = "mozHidden";
+        } else if (typeof document.msHidden !== "undefined") {
+            hidden = "msHidden";
+        } else if (typeof document.webkitHidden !== "undefined") {
+            hidden = "webkitHidden";
+        }
+
+        return document[hidden] ? false : true;
+    };
+
+    ChartInternal.prototype.getPathBox = getPathBox;
+    ChartInternal.prototype.CLASS = CLASS;
+
+    /* jshint ignore:start */
+
+    // PhantomJS doesn't have support for Function.prototype.bind, which has caused confusion. Use
+    // this polyfill to avoid the confusion.
+    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind#Polyfill
+
+    if (!Function.prototype.bind) {
+        Function.prototype.bind = function (oThis) {
+            if (typeof this !== 'function') {
+                // closest thing possible to the ECMAScript 5
+                // internal IsCallable function
+                throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
+            }
+
+            var aArgs = Array.prototype.slice.call(arguments, 1),
+                fToBind = this,
+                fNOP = function fNOP() {},
+                fBound = function fBound() {
+                return fToBind.apply(this instanceof fNOP ? this : oThis, aArgs.concat(Array.prototype.slice.call(arguments)));
+            };
+
+            fNOP.prototype = this.prototype;
+            fBound.prototype = new fNOP();
+
+            return fBound;
+        };
+    }
+
+    // SVGPathSeg API polyfill
+    // https://github.com/progers/pathseg
+    //
+    // This is a drop-in replacement for the SVGPathSeg and SVGPathSegList APIs that were removed from
+    // SVG2 (https://lists.w3.org/Archives/Public/www-svg/2015Jun/0044.html), including the latest spec
+    // changes which were implemented in Firefox 43 and Chrome 46.
+
+    (function () {
+
+        if (!("SVGPathSeg" in window)) {
+            // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSeg
+            window.SVGPathSeg = function (type, typeAsLetter, owningPathSegList) {
+                this.pathSegType = type;
+                this.pathSegTypeAsLetter = typeAsLetter;
+                this._owningPathSegList = owningPathSegList;
+            };
+
+            window.SVGPathSeg.prototype.classname = "SVGPathSeg";
+
+            window.SVGPathSeg.PATHSEG_UNKNOWN = 0;
+            window.SVGPathSeg.PATHSEG_CLOSEPATH = 1;
+            window.SVGPathSeg.PATHSEG_MOVETO_ABS = 2;
+            window.SVGPathSeg.PATHSEG_MOVETO_REL = 3;
+            window.SVGPathSeg.PATHSEG_LINETO_ABS = 4;
+            window.SVGPathSeg.PATHSEG_LINETO_REL = 5;
+            window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS = 6;
+            window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL = 7;
+            window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS = 8;
+            window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL = 9;
+            window.SVGPathSeg.PATHSEG_ARC_ABS = 10;
+            window.SVGPathSeg.PATHSEG_ARC_REL = 11;
+            window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS = 12;
+            window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL = 13;
+            window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS = 14;
+            window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL = 15;
+            window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = 16;
+            window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL = 17;
+            window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = 18;
+            window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = 19;
+
+            // Notify owning PathSegList on any changes so they can be synchronized back to the path element.
+            window.SVGPathSeg.prototype._segmentChanged = function () {
+                if (this._owningPathSegList) this._owningPathSegList.segmentChanged(this);
+            };
+
+            window.SVGPathSegClosePath = function (owningPathSegList) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CLOSEPATH, "z", owningPathSegList);
+            };
+            window.SVGPathSegClosePath.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegClosePath.prototype.toString = function () {
+                return "[object SVGPathSegClosePath]";
+            };
+            window.SVGPathSegClosePath.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter;
+            };
+            window.SVGPathSegClosePath.prototype.clone = function () {
+                return new window.SVGPathSegClosePath(undefined);
+            };
+
+            window.SVGPathSegMovetoAbs = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_ABS, "M", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegMovetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegMovetoAbs.prototype.toString = function () {
+                return "[object SVGPathSegMovetoAbs]";
+            };
+            window.SVGPathSegMovetoAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegMovetoAbs.prototype.clone = function () {
+                return new window.SVGPathSegMovetoAbs(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegMovetoRel = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_REL, "m", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegMovetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegMovetoRel.prototype.toString = function () {
+                return "[object SVGPathSegMovetoRel]";
+            };
+            window.SVGPathSegMovetoRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegMovetoRel.prototype.clone = function () {
+                return new window.SVGPathSegMovetoRel(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegMovetoRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegMovetoRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoAbs = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_ABS, "L", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegLinetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoAbs.prototype.toString = function () {
+                return "[object SVGPathSegLinetoAbs]";
+            };
+            window.SVGPathSegLinetoAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegLinetoAbs.prototype.clone = function () {
+                return new window.SVGPathSegLinetoAbs(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoRel = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_REL, "l", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegLinetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoRel.prototype.toString = function () {
+                return "[object SVGPathSegLinetoRel]";
+            };
+            window.SVGPathSegLinetoRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegLinetoRel.prototype.clone = function () {
+                return new window.SVGPathSegLinetoRel(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegLinetoRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoCubicAbs = function (owningPathSegList, x, y, x1, y1, x2, y2) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS, "C", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x1 = x1;
+                this._y1 = y1;
+                this._x2 = x2;
+                this._y2 = y2;
+            };
+            window.SVGPathSegCurvetoCubicAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoCubicAbs.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoCubicAbs]";
+            };
+            window.SVGPathSegCurvetoCubicAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoCubicAbs.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoCubicAbs(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x1", {
+                get: function get() {
+                    return this._x1;
+                },
+                set: function set(x1) {
+                    this._x1 = x1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y1", {
+                get: function get() {
+                    return this._y1;
+                },
+                set: function set(y1) {
+                    this._y1 = y1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x2", {
+                get: function get() {
+                    return this._x2;
+                },
+                set: function set(x2) {
+                    this._x2 = x2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y2", {
+                get: function get() {
+                    return this._y2;
+                },
+                set: function set(y2) {
+                    this._y2 = y2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoCubicRel = function (owningPathSegList, x, y, x1, y1, x2, y2) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL, "c", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x1 = x1;
+                this._y1 = y1;
+                this._x2 = x2;
+                this._y2 = y2;
+            };
+            window.SVGPathSegCurvetoCubicRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoCubicRel.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoCubicRel]";
+            };
+            window.SVGPathSegCurvetoCubicRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoCubicRel.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoCubicRel(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x1", {
+                get: function get() {
+                    return this._x1;
+                },
+                set: function set(x1) {
+                    this._x1 = x1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y1", {
+                get: function get() {
+                    return this._y1;
+                },
+                set: function set(y1) {
+                    this._y1 = y1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x2", {
+                get: function get() {
+                    return this._x2;
+                },
+                set: function set(x2) {
+                    this._x2 = x2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y2", {
+                get: function get() {
+                    return this._y2;
+                },
+                set: function set(y2) {
+                    this._y2 = y2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoQuadraticAbs = function (owningPathSegList, x, y, x1, y1) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS, "Q", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x1 = x1;
+                this._y1 = y1;
+            };
+            window.SVGPathSegCurvetoQuadraticAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoQuadraticAbs.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoQuadraticAbs]";
+            };
+            window.SVGPathSegCurvetoQuadraticAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoQuadraticAbs.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoQuadraticAbs(undefined, this._x, this._y, this._x1, this._y1);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "x1", {
+                get: function get() {
+                    return this._x1;
+                },
+                set: function set(x1) {
+                    this._x1 = x1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "y1", {
+                get: function get() {
+                    return this._y1;
+                },
+                set: function set(y1) {
+                    this._y1 = y1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoQuadraticRel = function (owningPathSegList, x, y, x1, y1) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL, "q", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x1 = x1;
+                this._y1 = y1;
+            };
+            window.SVGPathSegCurvetoQuadraticRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoQuadraticRel.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoQuadraticRel]";
+            };
+            window.SVGPathSegCurvetoQuadraticRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoQuadraticRel.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoQuadraticRel(undefined, this._x, this._y, this._x1, this._y1);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "x1", {
+                get: function get() {
+                    return this._x1;
+                },
+                set: function set(x1) {
+                    this._x1 = x1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "y1", {
+                get: function get() {
+                    return this._y1;
+                },
+                set: function set(y1) {
+                    this._y1 = y1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegArcAbs = function (owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_ABS, "A", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._r1 = r1;
+                this._r2 = r2;
+                this._angle = angle;
+                this._largeArcFlag = largeArcFlag;
+                this._sweepFlag = sweepFlag;
+            };
+            window.SVGPathSegArcAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegArcAbs.prototype.toString = function () {
+                return "[object SVGPathSegArcAbs]";
+            };
+            window.SVGPathSegArcAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegArcAbs.prototype.clone = function () {
+                return new window.SVGPathSegArcAbs(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag);
+            };
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "r1", {
+                get: function get() {
+                    return this._r1;
+                },
+                set: function set(r1) {
+                    this._r1 = r1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "r2", {
+                get: function get() {
+                    return this._r2;
+                },
+                set: function set(r2) {
+                    this._r2 = r2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "angle", {
+                get: function get() {
+                    return this._angle;
+                },
+                set: function set(angle) {
+                    this._angle = angle;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "largeArcFlag", {
+                get: function get() {
+                    return this._largeArcFlag;
+                },
+                set: function set(largeArcFlag) {
+                    this._largeArcFlag = largeArcFlag;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcAbs.prototype, "sweepFlag", {
+                get: function get() {
+                    return this._sweepFlag;
+                },
+                set: function set(sweepFlag) {
+                    this._sweepFlag = sweepFlag;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegArcRel = function (owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_REL, "a", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._r1 = r1;
+                this._r2 = r2;
+                this._angle = angle;
+                this._largeArcFlag = largeArcFlag;
+                this._sweepFlag = sweepFlag;
+            };
+            window.SVGPathSegArcRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegArcRel.prototype.toString = function () {
+                return "[object SVGPathSegArcRel]";
+            };
+            window.SVGPathSegArcRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegArcRel.prototype.clone = function () {
+                return new window.SVGPathSegArcRel(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag);
+            };
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "r1", {
+                get: function get() {
+                    return this._r1;
+                },
+                set: function set(r1) {
+                    this._r1 = r1;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "r2", {
+                get: function get() {
+                    return this._r2;
+                },
+                set: function set(r2) {
+                    this._r2 = r2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "angle", {
+                get: function get() {
+                    return this._angle;
+                },
+                set: function set(angle) {
+                    this._angle = angle;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "largeArcFlag", {
+                get: function get() {
+                    return this._largeArcFlag;
+                },
+                set: function set(largeArcFlag) {
+                    this._largeArcFlag = largeArcFlag;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegArcRel.prototype, "sweepFlag", {
+                get: function get() {
+                    return this._sweepFlag;
+                },
+                set: function set(sweepFlag) {
+                    this._sweepFlag = sweepFlag;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoHorizontalAbs = function (owningPathSegList, x) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS, "H", owningPathSegList);
+                this._x = x;
+            };
+            window.SVGPathSegLinetoHorizontalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoHorizontalAbs.prototype.toString = function () {
+                return "[object SVGPathSegLinetoHorizontalAbs]";
+            };
+            window.SVGPathSegLinetoHorizontalAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x;
+            };
+            window.SVGPathSegLinetoHorizontalAbs.prototype.clone = function () {
+                return new window.SVGPathSegLinetoHorizontalAbs(undefined, this._x);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoHorizontalAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoHorizontalRel = function (owningPathSegList, x) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL, "h", owningPathSegList);
+                this._x = x;
+            };
+            window.SVGPathSegLinetoHorizontalRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoHorizontalRel.prototype.toString = function () {
+                return "[object SVGPathSegLinetoHorizontalRel]";
+            };
+            window.SVGPathSegLinetoHorizontalRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x;
+            };
+            window.SVGPathSegLinetoHorizontalRel.prototype.clone = function () {
+                return new window.SVGPathSegLinetoHorizontalRel(undefined, this._x);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoHorizontalRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoVerticalAbs = function (owningPathSegList, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS, "V", owningPathSegList);
+                this._y = y;
+            };
+            window.SVGPathSegLinetoVerticalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoVerticalAbs.prototype.toString = function () {
+                return "[object SVGPathSegLinetoVerticalAbs]";
+            };
+            window.SVGPathSegLinetoVerticalAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._y;
+            };
+            window.SVGPathSegLinetoVerticalAbs.prototype.clone = function () {
+                return new window.SVGPathSegLinetoVerticalAbs(undefined, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoVerticalAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegLinetoVerticalRel = function (owningPathSegList, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL, "v", owningPathSegList);
+                this._y = y;
+            };
+            window.SVGPathSegLinetoVerticalRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegLinetoVerticalRel.prototype.toString = function () {
+                return "[object SVGPathSegLinetoVerticalRel]";
+            };
+            window.SVGPathSegLinetoVerticalRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._y;
+            };
+            window.SVGPathSegLinetoVerticalRel.prototype.clone = function () {
+                return new window.SVGPathSegLinetoVerticalRel(undefined, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegLinetoVerticalRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoCubicSmoothAbs = function (owningPathSegList, x, y, x2, y2) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS, "S", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x2 = x2;
+                this._y2 = y2;
+            };
+            window.SVGPathSegCurvetoCubicSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoCubicSmoothAbs.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoCubicSmoothAbs]";
+            };
+            window.SVGPathSegCurvetoCubicSmoothAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoCubicSmoothAbs.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, this._x, this._y, this._x2, this._y2);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "x2", {
+                get: function get() {
+                    return this._x2;
+                },
+                set: function set(x2) {
+                    this._x2 = x2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "y2", {
+                get: function get() {
+                    return this._y2;
+                },
+                set: function set(y2) {
+                    this._y2 = y2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoCubicSmoothRel = function (owningPathSegList, x, y, x2, y2) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL, "s", owningPathSegList);
+                this._x = x;
+                this._y = y;
+                this._x2 = x2;
+                this._y2 = y2;
+            };
+            window.SVGPathSegCurvetoCubicSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoCubicSmoothRel.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoCubicSmoothRel]";
+            };
+            window.SVGPathSegCurvetoCubicSmoothRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoCubicSmoothRel.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, this._x, this._y, this._x2, this._y2);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "x2", {
+                get: function get() {
+                    return this._x2;
+                },
+                set: function set(x2) {
+                    this._x2 = x2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "y2", {
+                get: function get() {
+                    return this._y2;
+                },
+                set: function set(y2) {
+                    this._y2 = y2;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoQuadraticSmoothAbs = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, "T", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoQuadraticSmoothAbs]";
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            window.SVGPathSegCurvetoQuadraticSmoothRel = function (owningPathSegList, x, y) {
+                window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, "t", owningPathSegList);
+                this._x = x;
+                this._y = y;
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
+            window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.toString = function () {
+                return "[object SVGPathSegCurvetoQuadraticSmoothRel]";
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothRel.prototype._asPathString = function () {
+                return this.pathSegTypeAsLetter + " " + this._x + " " + this._y;
+            };
+            window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.clone = function () {
+                return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, this._x, this._y);
+            };
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, "x", {
+                get: function get() {
+                    return this._x;
+                },
+                set: function set(x) {
+                    this._x = x;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, "y", {
+                get: function get() {
+                    return this._y;
+                },
+                set: function set(y) {
+                    this._y = y;
+                    this._segmentChanged();
+                },
+                enumerable: true
+            });
+
+            // Add createSVGPathSeg* functions to window.SVGPathElement.
+            // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-Interfacewindow.SVGPathElement.
+            window.SVGPathElement.prototype.createSVGPathSegClosePath = function () {
+                return new window.SVGPathSegClosePath(undefined);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegMovetoAbs = function (x, y) {
+                return new window.SVGPathSegMovetoAbs(undefined, x, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegMovetoRel = function (x, y) {
+                return new window.SVGPathSegMovetoRel(undefined, x, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoAbs = function (x, y) {
+                return new window.SVGPathSegLinetoAbs(undefined, x, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoRel = function (x, y) {
+                return new window.SVGPathSegLinetoRel(undefined, x, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicAbs = function (x, y, x1, y1, x2, y2) {
+                return new window.SVGPathSegCurvetoCubicAbs(undefined, x, y, x1, y1, x2, y2);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicRel = function (x, y, x1, y1, x2, y2) {
+                return new window.SVGPathSegCurvetoCubicRel(undefined, x, y, x1, y1, x2, y2);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticAbs = function (x, y, x1, y1) {
+                return new window.SVGPathSegCurvetoQuadraticAbs(undefined, x, y, x1, y1);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticRel = function (x, y, x1, y1) {
+                return new window.SVGPathSegCurvetoQuadraticRel(undefined, x, y, x1, y1);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegArcAbs = function (x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
+                return new window.SVGPathSegArcAbs(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegArcRel = function (x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
+                return new window.SVGPathSegArcRel(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalAbs = function (x) {
+                return new window.SVGPathSegLinetoHorizontalAbs(undefined, x);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalRel = function (x) {
+                return new window.SVGPathSegLinetoHorizontalRel(undefined, x);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalAbs = function (y) {
+                return new window.SVGPathSegLinetoVerticalAbs(undefined, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalRel = function (y) {
+                return new window.SVGPathSegLinetoVerticalRel(undefined, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothAbs = function (x, y, x2, y2) {
+                return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, x, y, x2, y2);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothRel = function (x, y, x2, y2) {
+                return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, x, y, x2, y2);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothAbs = function (x, y) {
+                return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, x, y);
+            };
+            window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothRel = function (x, y) {
+                return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, x, y);
+            };
+
+            if (!("getPathSegAtLength" in window.SVGPathElement.prototype)) {
+                // Add getPathSegAtLength to SVGPathElement.
+                // Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-__svg__SVGPathElement__getPathSegAtLength
+                // This polyfill requires SVGPathElement.getTotalLength to implement the distance-along-a-path algorithm.
+                window.SVGPathElement.prototype.getPathSegAtLength = function (distance) {
+                    if (distance === undefined || !isFinite(distance)) throw "Invalid arguments.";
+
+                    var measurementElement = document.createElementNS("http://www.w3.org/2000/svg", "path");
+                    measurementElement.setAttribute("d", this.getAttribute("d"));
+                    var lastPathSegment = measurementElement.pathSegList.numberOfItems - 1;
+
+                    // If the path is empty, return 0.
+                    if (lastPathSegment <= 0) return 0;
+
+                    do {
+                        measurementElement.pathSegList.removeItem(lastPathSegment);
+                        if (distance > measurementElement.getTotalLength()) break;
+                        lastPathSegment--;
+                    } while (lastPathSegment > 0);
+                    return lastPathSegment;
+                };
+            }
+        }
+
+        if (!("SVGPathSegList" in window)) {
+            // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSegList
+            window.SVGPathSegList = function (pathElement) {
+                this._pathElement = pathElement;
+                this._list = this._parsePath(this._pathElement.getAttribute("d"));
+
+                // Use a MutationObserver to catch changes to the path's "d" attribute.
+                this._mutationObserverConfig = {
+                    "attributes": true,
+                    "attributeFilter": ["d"]
+                };
+                this._pathElementMutationObserver = new MutationObserver(this._updateListFromPathMutations.bind(this));
+                this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
+            };
+
+            window.SVGPathSegList.prototype.classname = "SVGPathSegList";
+
+            Object.defineProperty(window.SVGPathSegList.prototype, "numberOfItems", {
+                get: function get() {
+                    this._checkPathSynchronizedToList();
+                    return this._list.length;
+                },
+                enumerable: true
+            });
+
+            // Add the pathSegList accessors to window.SVGPathElement.
+            // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGAnimatedPathData
+            Object.defineProperty(window.SVGPathElement.prototype, "pathSegList", {
+                get: function get() {
+                    if (!this._pathSegList) this._pathSegList = new window.SVGPathSegList(this);
+                    return this._pathSegList;
+                },
+                enumerable: true
+            });
+            // FIXME: The following are not implemented and simply return window.SVGPathElement.pathSegList.
+            Object.defineProperty(window.SVGPathElement.prototype, "normalizedPathSegList", {
+                get: function get() {
+                    return this.pathSegList;
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathElement.prototype, "animatedPathSegList", {
+                get: function get() {
+                    return this.pathSegList;
+                },
+                enumerable: true
+            });
+            Object.defineProperty(window.SVGPathElement.prototype, "animatedNormalizedPathSegList", {
+                get: function get() {
+                    return this.pathSegList;
+                },
+                enumerable: true
+            });
+
+            // Process any pending mutations to the path element and update the list as needed.
+            // This should be the first call of all public functions and is needed because
+            // MutationObservers are not synchronous so we can have pending asynchronous mutations.
+            window.SVGPathSegList.prototype._checkPathSynchronizedToList = function () {
+                this._updateListFromPathMutations(this._pathElementMutationObserver.takeRecords());
+            };
+
+            window.SVGPathSegList.prototype._updateListFromPathMutations = function (mutationRecords) {
+                if (!this._pathElement) return;
+                var hasPathMutations = false;
+                mutationRecords.forEach(function (record) {
+                    if (record.attributeName == "d") hasPathMutations = true;
+                });
+                if (hasPathMutations) this._list = this._parsePath(this._pathElement.getAttribute("d"));
+            };
+
+            // Serialize the list and update the path's 'd' attribute.
+            window.SVGPathSegList.prototype._writeListToPath = function () {
+                this._pathElementMutationObserver.disconnect();
+                this._pathElement.setAttribute("d", window.SVGPathSegList._pathSegArrayAsString(this._list));
+                this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
+            };
+
+            // When a path segment changes the list needs to be synchronized back to the path element.
+            window.SVGPathSegList.prototype.segmentChanged = function (pathSeg) {
+                this._writeListToPath();
+            };
+
+            window.SVGPathSegList.prototype.clear = function () {
+                this._checkPathSynchronizedToList();
+
+                this._list.forEach(function (pathSeg) {
+                    pathSeg._owningPathSegList = null;
+                });
+                this._list = [];
+                this._writeListToPath();
+            };
+
+            window.SVGPathSegList.prototype.initialize = function (newItem) {
+                this._checkPathSynchronizedToList();
+
+                this._list = [newItem];
+                newItem._owningPathSegList = this;
+                this._writeListToPath();
+                return newItem;
+            };
+
+            window.SVGPathSegList.prototype._checkValidIndex = function (index) {
+                if (isNaN(index) || index < 0 || index >= this.numberOfItems) throw "INDEX_SIZE_ERR";
+            };
+
+            window.SVGPathSegList.prototype.getItem = function (index) {
+                this._checkPathSynchronizedToList();
+
+                this._checkValidIndex(index);
+                return this._list[index];
+            };
+
+            window.SVGPathSegList.prototype.insertItemBefore = function (newItem, index) {
+                this._checkPathSynchronizedToList();
+
+                // Spec: If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list.
+                if (index > this.numberOfItems) index = this.numberOfItems;
+                if (newItem._owningPathSegList) {
+                    // SVG2 spec says to make a copy.
+                    newItem = newItem.clone();
+                }
+                this._list.splice(index, 0, newItem);
+                newItem._owningPathSegList = this;
+                this._writeListToPath();
+                return newItem;
+            };
+
+            window.SVGPathSegList.prototype.replaceItem = function (newItem, index) {
+                this._checkPathSynchronizedToList();
+
+                if (newItem._owningPathSegList) {
+                    // SVG2 spec says to make a copy.
+                    newItem = newItem.clone();
+                }
+                this._checkValidIndex(index);
+                this._list[index] = newItem;
+                newItem._owningPathSegList = this;
+                this._writeListToPath();
+                return newItem;
+            };
+
+            window.SVGPathSegList.prototype.removeItem = function (index) {
+                this._checkPathSynchronizedToList();
+
+                this._checkValidIndex(index);
+                var item = this._list[index];
+                this._list.splice(index, 1);
+                this._writeListToPath();
+                return item;
+            };
+
+            window.SVGPathSegList.prototype.appendItem = function (newItem) {
+                this._checkPathSynchronizedToList();
+
+                if (newItem._owningPathSegList) {
+                    // SVG2 spec says to make a copy.
+                    newItem = newItem.clone();
+                }
+                this._list.push(newItem);
+                newItem._owningPathSegList = this;
+                // TODO: Optimize this to just append to the existing attribute.
+                this._writeListToPath();
+                return newItem;
+            };
+
+            window.SVGPathSegList._pathSegArrayAsString = function (pathSegArray) {
+                var string = "";
+                var first = true;
+                pathSegArray.forEach(function (pathSeg) {
+                    if (first) {
+                        first = false;
+                        string += pathSeg._asPathString();
+                    } else {
+                        string += " " + pathSeg._asPathString();
+                    }
+                });
+                return string;
+            };
+
+            // This closely follows SVGPathParser::parsePath from Source/core/svg/SVGPathParser.cpp.
+            window.SVGPathSegList.prototype._parsePath = function (string) {
+                if (!string || string.length == 0) return [];
+
+                var owningPathSegList = this;
+
+                var Builder = function Builder() {
+                    this.pathSegList = [];
+                };
+
+                Builder.prototype.appendSegment = function (pathSeg) {
+                    this.pathSegList.push(pathSeg);
+                };
+
+                var Source = function Source(string) {
+                    this._string = string;
+                    this._currentIndex = 0;
+                    this._endIndex = this._string.length;
+                    this._previousCommand = window.SVGPathSeg.PATHSEG_UNKNOWN;
+
+                    this._skipOptionalSpaces();
+                };
+
+                Source.prototype._isCurrentSpace = function () {
+                    var character = this._string[this._currentIndex];
+                    return character <= " " && (character == " " || character == "\n" || character == "\t" || character == "\r" || character == "\f");
+                };
+
+                Source.prototype._skipOptionalSpaces = function () {
+                    while (this._currentIndex < this._endIndex && this._isCurrentSpace()) {
+                        this._currentIndex++;
+                    }return this._currentIndex < this._endIndex;
+                };
+
+                Source.prototype._skipOptionalSpacesOrDelimiter = function () {
+                    if (this._currentIndex < this._endIndex && !this._isCurrentSpace() && this._string.charAt(this._currentIndex) != ",") return false;
+                    if (this._skipOptionalSpaces()) {
+                        if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ",") {
+                            this._currentIndex++;
+                            this._skipOptionalSpaces();
+                        }
+                    }
+                    return this._currentIndex < this._endIndex;
+                };
+
+                Source.prototype.hasMoreData = function () {
+                    return this._currentIndex < this._endIndex;
+                };
+
+                Source.prototype.peekSegmentType = function () {
+                    var lookahead = this._string[this._currentIndex];
+                    return this._pathSegTypeFromChar(lookahead);
+                };
+
+                Source.prototype._pathSegTypeFromChar = function (lookahead) {
+                    switch (lookahead) {
+                        case "Z":
+                        case "z":
+                            return window.SVGPathSeg.PATHSEG_CLOSEPATH;
+                        case "M":
+                            return window.SVGPathSeg.PATHSEG_MOVETO_ABS;
+                        case "m":
+                            return window.SVGPathSeg.PATHSEG_MOVETO_REL;
+                        case "L":
+                            return window.SVGPathSeg.PATHSEG_LINETO_ABS;
+                        case "l":
+                            return window.SVGPathSeg.PATHSEG_LINETO_REL;
+                        case "C":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS;
+                        case "c":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL;
+                        case "Q":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS;
+                        case "q":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL;
+                        case "A":
+                            return window.SVGPathSeg.PATHSEG_ARC_ABS;
+                        case "a":
+                            return window.SVGPathSeg.PATHSEG_ARC_REL;
+                        case "H":
+                            return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS;
+                        case "h":
+                            return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL;
+                        case "V":
+                            return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS;
+                        case "v":
+                            return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL;
+                        case "S":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS;
+                        case "s":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL;
+                        case "T":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS;
+                        case "t":
+                            return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL;
+                        default:
+                            return window.SVGPathSeg.PATHSEG_UNKNOWN;
+                    }
+                };
+
+                Source.prototype._nextCommandHelper = function (lookahead, previousCommand) {
+                    // Check for remaining coordinates in the current command.
+                    if ((lookahead == "+" || lookahead == "-" || lookahead == "." || lookahead >= "0" && lookahead <= "9") && previousCommand != window.SVGPathSeg.PATHSEG_CLOSEPATH) {
+                        if (previousCommand == window.SVGPathSeg.PATHSEG_MOVETO_ABS) return window.SVGPathSeg.PATHSEG_LINETO_ABS;
+                        if (previousCommand == window.SVGPathSeg.PATHSEG_MOVETO_REL) return window.SVGPathSeg.PATHSEG_LINETO_REL;
+                        return previousCommand;
+                    }
+                    return window.SVGPathSeg.PATHSEG_UNKNOWN;
+                };
+
+                Source.prototype.initialCommandIsMoveTo = function () {
+                    // If the path is empty it is still valid, so return true.
+                    if (!this.hasMoreData()) return true;
+                    var command = this.peekSegmentType();
+                    // Path must start with moveTo.
+                    return command == window.SVGPathSeg.PATHSEG_MOVETO_ABS || command == window.SVGPathSeg.PATHSEG_MOVETO_REL;
+                };
+
+                // Parse a number from an SVG path. This very closely follows genericParseNumber(...) from Source/core/svg/SVGParserUtilities.cpp.
+                // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-PathDataBNF
+                Source.prototype._parseNumber = function () {
+                    var exponent = 0;
+                    var integer = 0;
+                    var frac = 1;
+                    var decimal = 0;
+                    var sign = 1;
+                    var expsign = 1;
+
+                    var startIndex = this._currentIndex;
+
+                    this._skipOptionalSpaces();
+
+                    // Read the sign.
+                    if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "+") this._currentIndex++;else if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "-") {
+                        this._currentIndex++;
+                        sign = -1;
+                    }
+
+                    if (this._currentIndex == this._endIndex || (this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9") && this._string.charAt(this._currentIndex) != ".")
+                        // The first character of a number must be one of [0-9+-.].
+                        return undefined;
+
+                    // Read the integer part, build right-to-left.
+                    var startIntPartIndex = this._currentIndex;
+                    while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
+                        this._currentIndex++;
+                    } // Advance to first non-digit.
+
+                    if (this._currentIndex != startIntPartIndex) {
+                        var scanIntPartIndex = this._currentIndex - 1;
+                        var multiplier = 1;
+                        while (scanIntPartIndex >= startIntPartIndex) {
+                            integer += multiplier * (this._string.charAt(scanIntPartIndex--) - "0");
+                            multiplier *= 10;
+                        }
+                    }
+
+                    // Read the decimals.
+                    if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ".") {
+                        this._currentIndex++;
+
+                        // There must be a least one digit following the .
+                        if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9") return undefined;
+                        while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
+                            frac *= 10;
+                            decimal += (this._string.charAt(this._currentIndex) - "0") / frac;
+                            this._currentIndex += 1;
+                        }
+                    }
+
+                    // Read the exponent part.
+                    if (this._currentIndex != startIndex && this._currentIndex + 1 < this._endIndex && (this._string.charAt(this._currentIndex) == "e" || this._string.charAt(this._currentIndex) == "E") && this._string.charAt(this._currentIndex + 1) != "x" && this._string.charAt(this._currentIndex + 1) != "m") {
+                        this._currentIndex++;
+
+                        // Read the sign of the exponent.
+                        if (this._string.charAt(this._currentIndex) == "+") {
+                            this._currentIndex++;
+                        } else if (this._string.charAt(this._currentIndex) == "-") {
+                            this._currentIndex++;
+                            expsign = -1;
+                        }
+
+                        // There must be an exponent.
+                        if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9") return undefined;
+
+                        while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
+                            exponent *= 10;
+                            exponent += this._string.charAt(this._currentIndex) - "0";
+                            this._currentIndex++;
+                        }
+                    }
+
+                    var number = integer + decimal;
+                    number *= sign;
+
+                    if (exponent) number *= Math.pow(10, expsign * exponent);
+
+                    if (startIndex == this._currentIndex) return undefined;
+
+                    this._skipOptionalSpacesOrDelimiter();
+
+                    return number;
+                };
+
+                Source.prototype._parseArcFlag = function () {
+                    if (this._currentIndex >= this._endIndex) return undefined;
+                    var flag = false;
+                    var flagChar = this._string.charAt(this._currentIndex++);
+                    if (flagChar == "0") flag = false;else if (flagChar == "1") flag = true;else return undefined;
+
+                    this._skipOptionalSpacesOrDelimiter();
+                    return flag;
+                };
+
+                Source.prototype.parseSegment = function () {
+                    var lookahead = this._string[this._currentIndex];
+                    var command = this._pathSegTypeFromChar(lookahead);
+                    if (command == window.SVGPathSeg.PATHSEG_UNKNOWN) {
+                        // Possibly an implicit command. Not allowed if this is the first command.
+                        if (this._previousCommand == window.SVGPathSeg.PATHSEG_UNKNOWN) return null;
+                        command = this._nextCommandHelper(lookahead, this._previousCommand);
+                        if (command == window.SVGPathSeg.PATHSEG_UNKNOWN) return null;
+                    } else {
+                        this._currentIndex++;
+                    }
+
+                    this._previousCommand = command;
+
+                    switch (command) {
+                        case window.SVGPathSeg.PATHSEG_MOVETO_REL:
+                            return new window.SVGPathSegMovetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_MOVETO_ABS:
+                            return new window.SVGPathSegMovetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_REL:
+                            return new window.SVGPathSegLinetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_ABS:
+                            return new window.SVGPathSegLinetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:
+                            return new window.SVGPathSegLinetoHorizontalRel(owningPathSegList, this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:
+                            return new window.SVGPathSegLinetoHorizontalAbs(owningPathSegList, this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:
+                            return new window.SVGPathSegLinetoVerticalRel(owningPathSegList, this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:
+                            return new window.SVGPathSegLinetoVerticalAbs(owningPathSegList, this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_CLOSEPATH:
+                            this._skipOptionalSpaces();
+                            return new window.SVGPathSegClosePath(owningPathSegList);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                x2: this._parseNumber(),
+                                y2: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoCubicRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                x2: this._parseNumber(),
+                                y2: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoCubicAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
+                            var points = {
+                                x2: this._parseNumber(),
+                                y2: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoCubicSmoothRel(owningPathSegList, points.x, points.y, points.x2, points.y2);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
+                            var points = {
+                                x2: this._parseNumber(),
+                                y2: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoCubicSmoothAbs(owningPathSegList, points.x, points.y, points.x2, points.y2);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoQuadraticRel(owningPathSegList, points.x, points.y, points.x1, points.y1);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegCurvetoQuadraticAbs(owningPathSegList, points.x, points.y, points.x1, points.y1);
+                        case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:
+                            return new window.SVGPathSegCurvetoQuadraticSmoothRel(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:
+                            return new window.SVGPathSegCurvetoQuadraticSmoothAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
+                        case window.SVGPathSeg.PATHSEG_ARC_REL:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                arcAngle: this._parseNumber(),
+                                arcLarge: this._parseArcFlag(),
+                                arcSweep: this._parseArcFlag(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegArcRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
+                        case window.SVGPathSeg.PATHSEG_ARC_ABS:
+                            var points = {
+                                x1: this._parseNumber(),
+                                y1: this._parseNumber(),
+                                arcAngle: this._parseNumber(),
+                                arcLarge: this._parseArcFlag(),
+                                arcSweep: this._parseArcFlag(),
+                                x: this._parseNumber(),
+                                y: this._parseNumber()
+                            };
+                            return new window.SVGPathSegArcAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
+                        default:
+                            throw "Unknown path seg type.";
+                    }
+                };
+
+                var builder = new Builder();
+                var source = new Source(string);
+
+                if (!source.initialCommandIsMoveTo()) return [];
+                while (source.hasMoreData()) {
+                    var pathSeg = source.parseSegment();
+                    if (!pathSeg) return [];
+                    builder.appendSegment(pathSeg);
+                }
+
+                return builder.pathSegList;
+            };
+        }
+    })();
+
+    // String.padEnd polyfill for IE11
+    //
+    // https://github.com/uxitten/polyfill/blob/master/string.polyfill.js
+    // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd
+    if (!String.prototype.padEnd) {
+        String.prototype.padEnd = function padEnd(targetLength, padString) {
+            targetLength = targetLength >> 0; //floor if number or convert non-number to 0;
+            padString = String(typeof padString !== 'undefined' ? padString : ' ');
+            if (this.length > targetLength) {
+                return String(this);
+            } else {
+                targetLength = targetLength - this.length;
+                if (targetLength > padString.length) {
+                    padString += padString.repeat(targetLength / padString.length); //append to original to ensure we are longer than needed
+                }
+                return String(this) + padString.slice(0, targetLength);
+            }
+        };
+    }
+
+    /* jshint ignore:end */
+
+    Chart.prototype.axis = function () {};
+    Chart.prototype.axis.labels = function (labels) {
+        var $$ = this.internal;
+        if (arguments.length) {
+            Object.keys(labels).forEach(function (axisId) {
+                $$.axis.setLabelText(axisId, labels[axisId]);
+            });
+            $$.axis.updateLabels();
+        }
+        // TODO: return some values?
+    };
+    Chart.prototype.axis.max = function (max) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (arguments.length) {
+            if ((typeof max === 'undefined' ? 'undefined' : _typeof(max)) === 'object') {
+                if (isValue(max.x)) {
+                    config.axis_x_max = max.x;
+                }
+                if (isValue(max.y)) {
+                    config.axis_y_max = max.y;
+                }
+                if (isValue(max.y2)) {
+                    config.axis_y2_max = max.y2;
+                }
+            } else {
+                config.axis_y_max = config.axis_y2_max = max;
+            }
+            $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true });
+        } else {
+            return {
+                x: config.axis_x_max,
+                y: config.axis_y_max,
+                y2: config.axis_y2_max
+            };
+        }
+    };
+    Chart.prototype.axis.min = function (min) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (arguments.length) {
+            if ((typeof min === 'undefined' ? 'undefined' : _typeof(min)) === 'object') {
+                if (isValue(min.x)) {
+                    config.axis_x_min = min.x;
+                }
+                if (isValue(min.y)) {
+                    config.axis_y_min = min.y;
+                }
+                if (isValue(min.y2)) {
+                    config.axis_y2_min = min.y2;
+                }
+            } else {
+                config.axis_y_min = config.axis_y2_min = min;
+            }
+            $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true });
+        } else {
+            return {
+                x: config.axis_x_min,
+                y: config.axis_y_min,
+                y2: config.axis_y2_min
+            };
+        }
+    };
+    Chart.prototype.axis.range = function (range) {
+        if (arguments.length) {
+            if (isDefined(range.max)) {
+                this.axis.max(range.max);
+            }
+            if (isDefined(range.min)) {
+                this.axis.min(range.min);
+            }
+        } else {
+            return {
+                max: this.axis.max(),
+                min: this.axis.min()
+            };
+        }
+    };
+
+    Chart.prototype.category = function (i, category) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (arguments.length > 1) {
+            config.axis_x_categories[i] = category;
+            $$.redraw();
+        }
+        return config.axis_x_categories[i];
+    };
+    Chart.prototype.categories = function (categories) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (!arguments.length) {
+            return config.axis_x_categories;
+        }
+        config.axis_x_categories = categories;
+        $$.redraw();
+        return config.axis_x_categories;
+    };
+
+    Chart.prototype.resize = function (size) {
+        var $$ = this.internal,
+            config = $$.config;
+        config.size_width = size ? size.width : null;
+        config.size_height = size ? size.height : null;
+        this.flush();
+    };
+
+    Chart.prototype.flush = function () {
+        var $$ = this.internal;
+        $$.updateAndRedraw({ withLegend: true, withTransition: false, withTransitionForTransform: false });
+    };
+
+    Chart.prototype.destroy = function () {
+        var $$ = this.internal;
+
+        window.clearInterval($$.intervalForObserveInserted);
+
+        if ($$.resizeTimeout !== undefined) {
+            window.clearTimeout($$.resizeTimeout);
+        }
+
+        if (window.detachEvent) {
+            window.detachEvent('onresize', $$.resizeIfElementDisplayed);
+        } else if (window.removeEventListener) {
+            window.removeEventListener('resize', $$.resizeIfElementDisplayed);
+        } else {
+            var wrapper = window.onresize;
+            // check if no one else removed our wrapper and remove our resizeFunction from it
+            if (wrapper && wrapper.add && wrapper.remove) {
+                wrapper.remove($$.resizeFunction);
+            }
+        }
+
+        // remove the inner resize functions
+        $$.resizeFunction.remove();
+
+        $$.selectChart.classed('c3', false).html("");
+
+        // MEMO: this is needed because the reference of some elements will not be released, then memory leak will happen.
+        Object.keys($$).forEach(function (key) {
+            $$[key] = null;
+        });
+
+        return null;
+    };
+
+    // TODO: fix
+    Chart.prototype.color = function (id) {
+        var $$ = this.internal;
+        return $$.color(id); // more patterns
+    };
+
+    Chart.prototype.data = function (targetIds) {
+        var targets = this.internal.data.targets;
+        return typeof targetIds === 'undefined' ? targets : targets.filter(function (t) {
+            return [].concat(targetIds).indexOf(t.id) >= 0;
+        });
+    };
+    Chart.prototype.data.shown = function (targetIds) {
+        return this.internal.filterTargetsToShow(this.data(targetIds));
+    };
+    Chart.prototype.data.values = function (targetId) {
+        var targets,
+            values = null;
+        if (targetId) {
+            targets = this.data(targetId);
+            values = targets[0] ? targets[0].values.map(function (d) {
+                return d.value;
+            }) : null;
+        }
+        return values;
+    };
+    Chart.prototype.data.names = function (names) {
+        this.internal.clearLegendItemTextBoxCache();
+        return this.internal.updateDataAttributes('names', names);
+    };
+    Chart.prototype.data.colors = function (colors) {
+        return this.internal.updateDataAttributes('colors', colors);
+    };
+    Chart.prototype.data.axes = function (axes) {
+        return this.internal.updateDataAttributes('axes', axes);
+    };
+
+    Chart.prototype.flow = function (args) {
+        var $$ = this.internal,
+            targets,
+            data,
+            notfoundIds = [],
+            orgDataCount = $$.getMaxDataCount(),
+            dataCount,
+            domain,
+            baseTarget,
+            baseValue,
+            length = 0,
+            tail = 0,
+            diff,
+            to;
+
+        if (args.json) {
+            data = $$.convertJsonToData(args.json, args.keys);
+        } else if (args.rows) {
+            data = $$.convertRowsToData(args.rows);
+        } else if (args.columns) {
+            data = $$.convertColumnsToData(args.columns);
+        } else {
+            return;
+        }
+        targets = $$.convertDataToTargets(data, true);
+
+        // Update/Add data
+        $$.data.targets.forEach(function (t) {
+            var found = false,
+                i,
+                j;
+            for (i = 0; i < targets.length; i++) {
+                if (t.id === targets[i].id) {
+                    found = true;
+
+                    if (t.values[t.values.length - 1]) {
+                        tail = t.values[t.values.length - 1].index + 1;
+                    }
+                    length = targets[i].values.length;
+
+                    for (j = 0; j < length; j++) {
+                        targets[i].values[j].index = tail + j;
+                        if (!$$.isTimeSeries()) {
+                            targets[i].values[j].x = tail + j;
+                        }
+                    }
+                    t.values = t.values.concat(targets[i].values);
+
+                    targets.splice(i, 1);
+                    break;
+                }
+            }
+            if (!found) {
+                notfoundIds.push(t.id);
+            }
+        });
+
+        // Append null for not found targets
+        $$.data.targets.forEach(function (t) {
+            var i, j;
+            for (i = 0; i < notfoundIds.length; i++) {
+                if (t.id === notfoundIds[i]) {
+                    tail = t.values[t.values.length - 1].index + 1;
+                    for (j = 0; j < length; j++) {
+                        t.values.push({
+                            id: t.id,
+                            index: tail + j,
+                            x: $$.isTimeSeries() ? $$.getOtherTargetX(tail + j) : tail + j,
+                            value: null
+                        });
+                    }
+                }
+            }
+        });
+
+        // Generate null values for new target
+        if ($$.data.targets.length) {
+            targets.forEach(function (t) {
+                var i,
+                    missing = [];
+                for (i = $$.data.targets[0].values[0].index; i < tail; i++) {
+                    missing.push({
+                        id: t.id,
+                        index: i,
+                        x: $$.isTimeSeries() ? $$.getOtherTargetX(i) : i,
+                        value: null
+                    });
+                }
+                t.values.forEach(function (v) {
+                    v.index += tail;
+                    if (!$$.isTimeSeries()) {
+                        v.x += tail;
+                    }
+                });
+                t.values = missing.concat(t.values);
+            });
+        }
+        $$.data.targets = $$.data.targets.concat(targets); // add remained
+
+        // check data count because behavior needs to change when it's only one
+        dataCount = $$.getMaxDataCount();
+        baseTarget = $$.data.targets[0];
+        baseValue = baseTarget.values[0];
+
+        // Update length to flow if needed
+        if (isDefined(args.to)) {
+            length = 0;
+            to = $$.isTimeSeries() ? $$.parseDate(args.to) : args.to;
+            baseTarget.values.forEach(function (v) {
+                if (v.x < to) {
+                    length++;
+                }
+            });
+        } else if (isDefined(args.length)) {
+            length = args.length;
+        }
+
+        // If only one data, update the domain to flow from left edge of the chart
+        if (!orgDataCount) {
+            if ($$.isTimeSeries()) {
+                if (baseTarget.values.length > 1) {
+                    diff = baseTarget.values[baseTarget.values.length - 1].x - baseValue.x;
+                } else {
+                    diff = baseValue.x - $$.getXDomain($$.data.targets)[0];
+                }
+            } else {
+                diff = 1;
+            }
+            domain = [baseValue.x - diff, baseValue.x];
+            $$.updateXDomain(null, true, true, false, domain);
+        } else if (orgDataCount === 1) {
+            if ($$.isTimeSeries()) {
+                diff = (baseTarget.values[baseTarget.values.length - 1].x - baseValue.x) / 2;
+                domain = [new Date(+baseValue.x - diff), new Date(+baseValue.x + diff)];
+                $$.updateXDomain(null, true, true, false, domain);
+            }
+        }
+
+        // Set targets
+        $$.updateTargets($$.data.targets);
+
+        // Redraw with new targets
+        $$.redraw({
+            flow: {
+                index: baseValue.index,
+                length: length,
+                duration: isValue(args.duration) ? args.duration : $$.config.transition_duration,
+                done: args.done,
+                orgDataCount: orgDataCount
+            },
+            withLegend: true,
+            withTransition: orgDataCount > 1,
+            withTrimXDomain: false,
+            withUpdateXAxis: true
+        });
+    };
+
+    ChartInternal.prototype.generateFlow = function (args) {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3;
+
+        return function () {
+            var targets = args.targets,
+                flow = args.flow,
+                drawBar = args.drawBar,
+                drawLine = args.drawLine,
+                drawArea = args.drawArea,
+                cx = args.cx,
+                cy = args.cy,
+                xv = args.xv,
+                xForText = args.xForText,
+                yForText = args.yForText,
+                duration = args.duration;
+
+            var translateX,
+                scaleX = 1,
+                transform,
+                flowIndex = flow.index,
+                flowLength = flow.length,
+                flowStart = $$.getValueOnIndex($$.data.targets[0].values, flowIndex),
+                flowEnd = $$.getValueOnIndex($$.data.targets[0].values, flowIndex + flowLength),
+                orgDomain = $$.x.domain(),
+                domain,
+                durationForFlow = flow.duration || duration,
+                done = flow.done || function () {},
+                wait = $$.generateWait();
+
+            var xgrid, xgridLines, mainRegion, mainText, mainBar, mainLine, mainArea, mainCircle;
+
+            // set flag
+            $$.flowing = true;
+
+            // remove head data after rendered
+            $$.data.targets.forEach(function (d) {
+                d.values.splice(0, flowLength);
+            });
+
+            // update x domain to generate axis elements for flow
+            domain = $$.updateXDomain(targets, true, true);
+            // update elements related to x scale
+            if ($$.updateXGrid) {
+                $$.updateXGrid(true);
+            }
+
+            xgrid = $$.xgrid || d3.selectAll([]); // xgrid needs to be obtained after updateXGrid
+            xgridLines = $$.xgridLines || d3.selectAll([]);
+            mainRegion = $$.mainRegion || d3.selectAll([]);
+            mainText = $$.mainText || d3.selectAll([]);
+            mainBar = $$.mainBar || d3.selectAll([]);
+            mainLine = $$.mainLine || d3.selectAll([]);
+            mainArea = $$.mainArea || d3.selectAll([]);
+            mainCircle = $$.mainCircle || d3.selectAll([]);
+
+            // generate transform to flow
+            if (!flow.orgDataCount) {
+                // if empty
+                if ($$.data.targets[0].values.length !== 1) {
+                    translateX = $$.x(orgDomain[0]) - $$.x(domain[0]);
+                } else {
+                    if ($$.isTimeSeries()) {
+                        flowStart = $$.getValueOnIndex($$.data.targets[0].values, 0);
+                        flowEnd = $$.getValueOnIndex($$.data.targets[0].values, $$.data.targets[0].values.length - 1);
+                        translateX = $$.x(flowStart.x) - $$.x(flowEnd.x);
+                    } else {
+                        translateX = diffDomain(domain) / 2;
+                    }
+                }
+            } else if (flow.orgDataCount === 1 || (flowStart && flowStart.x) === (flowEnd && flowEnd.x)) {
+                translateX = $$.x(orgDomain[0]) - $$.x(domain[0]);
+            } else {
+                if ($$.isTimeSeries()) {
+                    translateX = $$.x(orgDomain[0]) - $$.x(domain[0]);
+                } else {
+                    translateX = $$.x(flowStart.x) - $$.x(flowEnd.x);
+                }
+            }
+            scaleX = diffDomain(orgDomain) / diffDomain(domain);
+            transform = 'translate(' + translateX + ',0) scale(' + scaleX + ',1)';
+
+            $$.hideXGridFocus();
+
+            var flowTransition = d3.transition().ease(d3.easeLinear).duration(durationForFlow);
+            wait.add($$.xAxis($$.axes.x, flowTransition));
+            wait.add(mainBar.transition(flowTransition).attr('transform', transform));
+            wait.add(mainLine.transition(flowTransition).attr('transform', transform));
+            wait.add(mainArea.transition(flowTransition).attr('transform', transform));
+            wait.add(mainCircle.transition(flowTransition).attr('transform', transform));
+            wait.add(mainText.transition(flowTransition).attr('transform', transform));
+            wait.add(mainRegion.filter($$.isRegionOnX).transition(flowTransition).attr('transform', transform));
+            wait.add(xgrid.transition(flowTransition).attr('transform', transform));
+            wait.add(xgridLines.transition(flowTransition).attr('transform', transform));
+            wait(function () {
+                var i,
+                    shapes = [],
+                    texts = [];
+
+                // remove flowed elements
+                if (flowLength) {
+                    for (i = 0; i < flowLength; i++) {
+                        shapes.push('.' + CLASS.shape + '-' + (flowIndex + i));
+                        texts.push('.' + CLASS.text + '-' + (flowIndex + i));
+                    }
+                    $$.svg.selectAll('.' + CLASS.shapes).selectAll(shapes).remove();
+                    $$.svg.selectAll('.' + CLASS.texts).selectAll(texts).remove();
+                    $$.svg.select('.' + CLASS.xgrid).remove();
+                }
+
+                // draw again for removing flowed elements and reverting attr
+                xgrid.attr('transform', null).attr('x1', $$.xgridAttr.x1).attr('x2', $$.xgridAttr.x2).attr('y1', $$.xgridAttr.y1).attr('y2', $$.xgridAttr.y2).style("opacity", $$.xgridAttr.opacity);
+                xgridLines.attr('transform', null);
+                xgridLines.select('line').attr("x1", config.axis_rotated ? 0 : xv).attr("x2", config.axis_rotated ? $$.width : xv);
+                xgridLines.select('text').attr("x", config.axis_rotated ? $$.width : 0).attr("y", xv);
+                mainBar.attr('transform', null).attr("d", drawBar);
+                mainLine.attr('transform', null).attr("d", drawLine);
+                mainArea.attr('transform', null).attr("d", drawArea);
+                mainCircle.attr('transform', null).attr("cx", cx).attr("cy", cy);
+                mainText.attr('transform', null).attr('x', xForText).attr('y', yForText).style('fill-opacity', $$.opacityForText.bind($$));
+                mainRegion.attr('transform', null);
+                mainRegion.filter($$.isRegionOnX).attr("x", $$.regionX.bind($$)).attr("width", $$.regionWidth.bind($$));
+
+                // callback for end of flow
+                done();
+
+                $$.flowing = false;
+            });
+        };
+    };
+
+    Chart.prototype.focus = function (targetIds) {
+        var $$ = this.internal,
+            candidates;
+
+        targetIds = $$.mapToTargetIds(targetIds);
+        candidates = $$.svg.selectAll($$.selectorTargets(targetIds.filter($$.isTargetToShow, $$))), this.revert();
+        this.defocus();
+        candidates.classed(CLASS.focused, true).classed(CLASS.defocused, false);
+        if ($$.hasArcType()) {
+            $$.expandArc(targetIds);
+        }
+        $$.toggleFocusLegend(targetIds, true);
+
+        $$.focusedTargetIds = targetIds;
+        $$.defocusedTargetIds = $$.defocusedTargetIds.filter(function (id) {
+            return targetIds.indexOf(id) < 0;
+        });
+    };
+
+    Chart.prototype.defocus = function (targetIds) {
+        var $$ = this.internal,
+            candidates;
+
+        targetIds = $$.mapToTargetIds(targetIds);
+        candidates = $$.svg.selectAll($$.selectorTargets(targetIds.filter($$.isTargetToShow, $$))), candidates.classed(CLASS.focused, false).classed(CLASS.defocused, true);
+        if ($$.hasArcType()) {
+            $$.unexpandArc(targetIds);
+        }
+        $$.toggleFocusLegend(targetIds, false);
+
+        $$.focusedTargetIds = $$.focusedTargetIds.filter(function (id) {
+            return targetIds.indexOf(id) < 0;
+        });
+        $$.defocusedTargetIds = targetIds;
+    };
+
+    Chart.prototype.revert = function (targetIds) {
+        var $$ = this.internal,
+            candidates;
+
+        targetIds = $$.mapToTargetIds(targetIds);
+        candidates = $$.svg.selectAll($$.selectorTargets(targetIds)); // should be for all targets
+
+        candidates.classed(CLASS.focused, false).classed(CLASS.defocused, false);
+        if ($$.hasArcType()) {
+            $$.unexpandArc(targetIds);
+        }
+        if ($$.config.legend_show) {
+            $$.showLegend(targetIds.filter($$.isLegendToShow.bind($$)));
+            $$.legend.selectAll($$.selectorLegends(targetIds)).filter(function () {
+                return $$.d3.select(this).classed(CLASS.legendItemFocused);
+            }).classed(CLASS.legendItemFocused, false);
+        }
+
+        $$.focusedTargetIds = [];
+        $$.defocusedTargetIds = [];
+    };
+
+    Chart.prototype.xgrids = function (grids) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (!grids) {
+            return config.grid_x_lines;
+        }
+        config.grid_x_lines = grids;
+        $$.redrawWithoutRescale();
+        return config.grid_x_lines;
+    };
+    Chart.prototype.xgrids.add = function (grids) {
+        var $$ = this.internal;
+        return this.xgrids($$.config.grid_x_lines.concat(grids ? grids : []));
+    };
+    Chart.prototype.xgrids.remove = function (params) {
+        // TODO: multiple
+        var $$ = this.internal;
+        $$.removeGridLines(params, true);
+    };
+
+    Chart.prototype.ygrids = function (grids) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (!grids) {
+            return config.grid_y_lines;
+        }
+        config.grid_y_lines = grids;
+        $$.redrawWithoutRescale();
+        return config.grid_y_lines;
+    };
+    Chart.prototype.ygrids.add = function (grids) {
+        var $$ = this.internal;
+        return this.ygrids($$.config.grid_y_lines.concat(grids ? grids : []));
+    };
+    Chart.prototype.ygrids.remove = function (params) {
+        // TODO: multiple
+        var $$ = this.internal;
+        $$.removeGridLines(params, false);
+    };
+
+    Chart.prototype.groups = function (groups) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (isUndefined(groups)) {
+            return config.data_groups;
+        }
+        config.data_groups = groups;
+        $$.redraw();
+        return config.data_groups;
+    };
+
+    Chart.prototype.legend = function () {};
+    Chart.prototype.legend.show = function (targetIds) {
+        var $$ = this.internal;
+        $$.showLegend($$.mapToTargetIds(targetIds));
+        $$.updateAndRedraw({ withLegend: true });
+    };
+    Chart.prototype.legend.hide = function (targetIds) {
+        var $$ = this.internal;
+        $$.hideLegend($$.mapToTargetIds(targetIds));
+        $$.updateAndRedraw({ withLegend: false });
+    };
+
+    Chart.prototype.load = function (args) {
+        var $$ = this.internal,
+            config = $$.config;
+        // update xs if specified
+        if (args.xs) {
+            $$.addXs(args.xs);
+        }
+        // update names if exists
+        if ('names' in args) {
+            Chart.prototype.data.names.bind(this)(args.names);
+        }
+        // update classes if exists
+        if ('classes' in args) {
+            Object.keys(args.classes).forEach(function (id) {
+                config.data_classes[id] = args.classes[id];
+            });
+        }
+        // update categories if exists
+        if ('categories' in args && $$.isCategorized()) {
+            config.axis_x_categories = args.categories;
+        }
+        // update axes if exists
+        if ('axes' in args) {
+            Object.keys(args.axes).forEach(function (id) {
+                config.data_axes[id] = args.axes[id];
+            });
+        }
+        // update colors if exists
+        if ('colors' in args) {
+            Object.keys(args.colors).forEach(function (id) {
+                config.data_colors[id] = args.colors[id];
+            });
+        }
+        // use cache if exists
+        if ('cacheIds' in args && $$.hasCaches(args.cacheIds)) {
+            $$.load($$.getCaches(args.cacheIds), args.done);
+            return;
+        }
+        // unload if needed
+        if ('unload' in args) {
+            // TODO: do not unload if target will load (included in url/rows/columns)
+            $$.unload($$.mapToTargetIds(typeof args.unload === 'boolean' && args.unload ? null : args.unload), function () {
+                $$.loadFromArgs(args);
+            });
+        } else {
+            $$.loadFromArgs(args);
+        }
+    };
+
+    Chart.prototype.unload = function (args) {
+        var $$ = this.internal;
+        args = args || {};
+        if (args instanceof Array) {
+            args = { ids: args };
+        } else if (typeof args === 'string') {
+            args = { ids: [args] };
+        }
+        $$.unload($$.mapToTargetIds(args.ids), function () {
+            $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true, withLegend: true });
+            if (args.done) {
+                args.done();
+            }
+        });
+    };
+
+    Chart.prototype.regions = function (regions) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (!regions) {
+            return config.regions;
+        }
+        config.regions = regions;
+        $$.redrawWithoutRescale();
+        return config.regions;
+    };
+    Chart.prototype.regions.add = function (regions) {
+        var $$ = this.internal,
+            config = $$.config;
+        if (!regions) {
+            return config.regions;
+        }
+        config.regions = config.regions.concat(regions);
+        $$.redrawWithoutRescale();
+        return config.regions;
+    };
+    Chart.prototype.regions.remove = function (options) {
+        var $$ = this.internal,
+            config = $$.config,
+            duration,
+            classes,
+            regions;
+
+        options = options || {};
+        duration = $$.getOption(options, "duration", config.transition_duration);
+        classes = $$.getOption(options, "classes", [CLASS.region]);
+
+        regions = $$.main.select('.' + CLASS.regions).selectAll(classes.map(function (c) {
+            return '.' + c;
+        }));
+        (duration ? regions.transition().duration(duration) : regions).style('opacity', 0).remove();
+
+        config.regions = config.regions.filter(function (region) {
+            var found = false;
+            if (!region['class']) {
+                return true;
+            }
+            region['class'].split(' ').forEach(function (c) {
+                if (classes.indexOf(c) >= 0) {
+                    found = true;
+                }
+            });
+            return !found;
+        });
+
+        return config.regions;
+    };
+
+    Chart.prototype.selected = function (targetId) {
+        var $$ = this.internal,
+            d3 = $$.d3;
+        return d3.merge($$.main.selectAll('.' + CLASS.shapes + $$.getTargetSelectorSuffix(targetId)).selectAll('.' + CLASS.shape).filter(function () {
+            return d3.select(this).classed(CLASS.SELECTED);
+        }).map(function (d) {
+            return d.map(function (d) {
+                var data = d.__data__;return data.data ? data.data : data;
+            });
+        }));
+    };
+    Chart.prototype.select = function (ids, indices, resetOther) {
+        var $$ = this.internal,
+            d3 = $$.d3,
+            config = $$.config;
+        if (!config.data_selection_enabled) {
+            return;
+        }
+        $$.main.selectAll('.' + CLASS.shapes).selectAll('.' + CLASS.shape).each(function (d, i) {
+            var shape = d3.select(this),
+                id = d.data ? d.data.id : d.id,
+                toggle = $$.getToggle(this, d).bind($$),
+                isTargetId = config.data_selection_grouped || !ids || ids.indexOf(id) >= 0,
+                isTargetIndex = !indices || indices.indexOf(i) >= 0,
+                isSelected = shape.classed(CLASS.SELECTED);
+            // line/area selection not supported yet
+            if (shape.classed(CLASS.line) || shape.classed(CLASS.area)) {
+                return;
+            }
+            if (isTargetId && isTargetIndex) {
+                if (config.data_selection_isselectable(d) && !isSelected) {
+                    toggle(true, shape.classed(CLASS.SELECTED, true), d, i);
+                }
+            } else if (isDefined(resetOther) && resetOther) {
+                if (isSelected) {
+                    toggle(false, shape.classed(CLASS.SELECTED, false), d, i);
+                }
+            }
+        });
+    };
+    Chart.prototype.unselect = function (ids, indices) {
+        var $$ = this.internal,
+            d3 = $$.d3,
+            config = $$.config;
+        if (!config.data_selection_enabled) {
+            return;
+        }
+        $$.main.selectAll('.' + CLASS.shapes).selectAll('.' + CLASS.shape).each(function (d, i) {
+            var shape = d3.select(this),
+                id = d.data ? d.data.id : d.id,
+                toggle = $$.getToggle(this, d).bind($$),
+                isTargetId = config.data_selection_grouped || !ids || ids.indexOf(id) >= 0,
+                isTargetIndex = !indices || indices.indexOf(i) >= 0,
+                isSelected = shape.classed(CLASS.SELECTED);
+            // line/area selection not supported yet
+            if (shape.classed(CLASS.line) || shape.classed(CLASS.area)) {
+                return;
+            }
+            if (isTargetId && isTargetIndex) {
+                if (config.data_selection_isselectable(d)) {
+                    if (isSelected) {
+                        toggle(false, shape.classed(CLASS.SELECTED, false), d, i);
+                    }
+                }
+            }
+        });
+    };
+
+    Chart.prototype.show = function (targetIds, options) {
+        var $$ = this.internal,
+            targets;
+
+        targetIds = $$.mapToTargetIds(targetIds);
+        options = options || {};
+
+        $$.removeHiddenTargetIds(targetIds);
+        targets = $$.svg.selectAll($$.selectorTargets(targetIds));
+
+        targets.transition().style('display', 'initial', 'important').style('opacity', 1, 'important').call($$.endall, function () {
+            targets.style('opacity', null).style('opacity', 1);
+        });
+
+        if (options.withLegend) {
+            $$.showLegend(targetIds);
+        }
+
+        $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true, withLegend: true });
+    };
+
+    Chart.prototype.hide = function (targetIds, options) {
+        var $$ = this.internal,
+            targets;
+
+        targetIds = $$.mapToTargetIds(targetIds);
+        options = options || {};
+
+        $$.addHiddenTargetIds(targetIds);
+        targets = $$.svg.selectAll($$.selectorTargets(targetIds));
+
+        targets.transition().style('opacity', 0, 'important').call($$.endall, function () {
+            targets.style('opacity', null).style('opacity', 0);
+            targets.style('display', 'none');
+        });
+
+        if (options.withLegend) {
+            $$.hideLegend(targetIds);
+        }
+
+        $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true, withLegend: true });
+    };
+
+    Chart.prototype.toggle = function (targetIds, options) {
+        var that = this,
+            $$ = this.internal;
+        $$.mapToTargetIds(targetIds).forEach(function (targetId) {
+            $$.isTargetToShow(targetId) ? that.hide(targetId, options) : that.show(targetId, options);
+        });
+    };
+
+    Chart.prototype.tooltip = function () {};
+    Chart.prototype.tooltip.show = function (args) {
+        var $$ = this.internal,
+            targets,
+            data,
+            mouse = {};
+
+        // determine mouse position on the chart
+        if (args.mouse) {
+            mouse = args.mouse;
+        } else {
+            // determine focus data
+            if (args.data) {
+                data = args.data;
+            } else if (typeof args.x !== 'undefined') {
+                if (args.id) {
+                    targets = $$.data.targets.filter(function (t) {
+                        return t.id === args.id;
+                    });
+                } else {
+                    targets = $$.data.targets;
+                }
+                data = $$.filterByX(targets, args.x).slice(0, 1)[0];
+            }
+            mouse = data ? $$.getMousePosition(data) : null;
+        }
+
+        // emulate mouse events to show
+        $$.dispatchEvent('mousemove', mouse);
+
+        $$.config.tooltip_onshow.call($$, data);
+    };
+    Chart.prototype.tooltip.hide = function () {
+        // TODO: get target data by checking the state of focus
+        this.internal.dispatchEvent('mouseout', 0);
+
+        this.internal.config.tooltip_onhide.call(this);
+    };
+
+    Chart.prototype.transform = function (type, targetIds) {
+        var $$ = this.internal,
+            options = ['pie', 'donut'].indexOf(type) >= 0 ? { withTransform: true } : null;
+        $$.transformTo(targetIds, type, options);
+    };
+
+    ChartInternal.prototype.transformTo = function (targetIds, type, optionsForRedraw) {
+        var $$ = this,
+            withTransitionForAxis = !$$.hasArcType(),
+            options = optionsForRedraw || { withTransitionForAxis: withTransitionForAxis };
+        options.withTransitionForTransform = false;
+        $$.transiting = false;
+        $$.setTargetType(targetIds, type);
+        $$.updateTargets($$.data.targets); // this is needed when transforming to arc
+        $$.updateAndRedraw(options);
+    };
+
+    Chart.prototype.x = function (x) {
+        var $$ = this.internal;
+        if (arguments.length) {
+            $$.updateTargetX($$.data.targets, x);
+            $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true });
+        }
+        return $$.data.xs;
+    };
+    Chart.prototype.xs = function (xs) {
+        var $$ = this.internal;
+        if (arguments.length) {
+            $$.updateTargetXs($$.data.targets, xs);
+            $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true });
+        }
+        return $$.data.xs;
+    };
+
+    Chart.prototype.zoom = function (domain) {
+        var $$ = this.internal;
+        if (domain) {
+            if ($$.isTimeSeries()) {
+                domain = domain.map(function (x) {
+                    return $$.parseDate(x);
+                });
+            }
+            if ($$.config.subchart_show) {
+                $$.brush.selectionAsValue(domain, true);
+            } else {
+                $$.updateXDomain(null, true, false, false, domain);
+                $$.redraw({ withY: $$.config.zoom_rescale, withSubchart: false });
+            }
+            $$.config.zoom_onzoom.call(this, $$.x.orgDomain());
+            return domain;
+        } else {
+            return $$.x.domain();
+        }
+    };
+    Chart.prototype.zoom.enable = function (enabled) {
+        var $$ = this.internal;
+        $$.config.zoom_enabled = enabled;
+        $$.updateAndRedraw();
+    };
+    Chart.prototype.unzoom = function () {
+        var $$ = this.internal;
+        if ($$.config.subchart_show) {
+            $$.brush.clear();
+        } else {
+            $$.updateXDomain(null, true, false, false, $$.subX.domain());
+            $$.redraw({ withY: $$.config.zoom_rescale, withSubchart: false });
+        }
+    };
+
+    Chart.prototype.zoom.max = function (max) {
+        var $$ = this.internal,
+            config = $$.config,
+            d3 = $$.d3;
+        if (max === 0 || max) {
+            config.zoom_x_max = d3.max([$$.orgXDomain[1], max]);
+        } else {
+            return config.zoom_x_max;
+        }
+    };
+
+    Chart.prototype.zoom.min = function (min) {
+        var $$ = this.internal,
+            config = $$.config,
+            d3 = $$.d3;
+        if (min === 0 || min) {
+            config.zoom_x_min = d3.min([$$.orgXDomain[0], min]);
+        } else {
+            return config.zoom_x_min;
+        }
+    };
+
+    Chart.prototype.zoom.range = function (range) {
+        if (arguments.length) {
+            if (isDefined(range.max)) {
+                this.domain.max(range.max);
+            }
+            if (isDefined(range.min)) {
+                this.domain.min(range.min);
+            }
+        } else {
+            return {
+                max: this.domain.max(),
+                min: this.domain.min()
+            };
+        }
+    };
+
+    ChartInternal.prototype.initPie = function () {
+        var $$ = this,
+            d3 = $$.d3;
+        $$.pie = d3.pie().value(function (d) {
+            return d.values.reduce(function (a, b) {
+                return a + b.value;
+            }, 0);
+        });
+
+        var orderFct = $$.getOrderFunction();
+
+        // we need to reverse the returned order if asc or desc to have the slice in expected order.
+        if (orderFct && ($$.isOrderAsc() || $$.isOrderDesc())) {
+            var defaultSort = orderFct;
+            orderFct = function orderFct(t1, t2) {
+                return defaultSort(t1, t2) * -1;
+            };
+        }
+
+        $$.pie.sort(orderFct || null);
+    };
+
+    ChartInternal.prototype.updateRadius = function () {
+        var $$ = this,
+            config = $$.config,
+            w = config.gauge_width || config.donut_width,
+            gaugeArcWidth = $$.filterTargetsToShow($$.data.targets).length * $$.config.gauge_arcs_minWidth;
+        $$.radiusExpanded = Math.min($$.arcWidth, $$.arcHeight) / 2 * ($$.hasType('gauge') ? 0.85 : 1);
+        $$.radius = $$.radiusExpanded * 0.95;
+        $$.innerRadiusRatio = w ? ($$.radius - w) / $$.radius : 0.6;
+        $$.innerRadius = $$.hasType('donut') || $$.hasType('gauge') ? $$.radius * $$.innerRadiusRatio : 0;
+        $$.gaugeArcWidth = w ? w : gaugeArcWidth <= $$.radius - $$.innerRadius ? $$.radius - $$.innerRadius : gaugeArcWidth <= $$.radius ? gaugeArcWidth : $$.radius;
+    };
+
+    ChartInternal.prototype.updateArc = function () {
+        var $$ = this;
+        $$.svgArc = $$.getSvgArc();
+        $$.svgArcExpanded = $$.getSvgArcExpanded();
+        $$.svgArcExpandedSub = $$.getSvgArcExpanded(0.98);
+    };
+
+    ChartInternal.prototype.updateAngle = function (d) {
+        var $$ = this,
+            config = $$.config,
+            found = false,
+            index = 0,
+            gMin,
+            gMax,
+            gTic,
+            gValue;
+
+        if (!config) {
+            return null;
+        }
+
+        $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
+            if (!found && t.data.id === d.data.id) {
+                found = true;
+                d = t;
+                d.index = index;
+            }
+            index++;
+        });
+        if (isNaN(d.startAngle)) {
+            d.startAngle = 0;
+        }
+        if (isNaN(d.endAngle)) {
+            d.endAngle = d.startAngle;
+        }
+        if ($$.isGaugeType(d.data)) {
+            gMin = config.gauge_min;
+            gMax = config.gauge_max;
+            gTic = Math.PI * (config.gauge_fullCircle ? 2 : 1) / (gMax - gMin);
+            gValue = d.value < gMin ? 0 : d.value < gMax ? d.value - gMin : gMax - gMin;
+            d.startAngle = config.gauge_startingAngle;
+            d.endAngle = d.startAngle + gTic * gValue;
+        }
+        return found ? d : null;
+    };
+
+    ChartInternal.prototype.getSvgArc = function () {
+        var $$ = this,
+            hasGaugeType = $$.hasType('gauge'),
+            singleArcWidth = $$.gaugeArcWidth / $$.filterTargetsToShow($$.data.targets).length,
+            arc = $$.d3.arc().outerRadius(function (d) {
+            return hasGaugeType ? $$.radius - singleArcWidth * d.index : $$.radius;
+        }).innerRadius(function (d) {
+            return hasGaugeType ? $$.radius - singleArcWidth * (d.index + 1) : $$.innerRadius;
+        }),
+            newArc = function newArc(d, withoutUpdate) {
+            var updated;
+            if (withoutUpdate) {
+                return arc(d);
+            } // for interpolate
+            updated = $$.updateAngle(d);
+            return updated ? arc(updated) : "M 0 0";
+        };
+        // TODO: extends all function
+        newArc.centroid = arc.centroid;
+        return newArc;
+    };
+
+    ChartInternal.prototype.getSvgArcExpanded = function (rate) {
+        rate = rate || 1;
+        var $$ = this,
+            hasGaugeType = $$.hasType('gauge'),
+            singleArcWidth = $$.gaugeArcWidth / $$.filterTargetsToShow($$.data.targets).length,
+            expandWidth = Math.min($$.radiusExpanded * rate - $$.radius, singleArcWidth * 0.8 - (1 - rate) * 100),
+            arc = $$.d3.arc().outerRadius(function (d) {
+            return hasGaugeType ? $$.radius - singleArcWidth * d.index + expandWidth : $$.radiusExpanded * rate;
+        }).innerRadius(function (d) {
+            return hasGaugeType ? $$.radius - singleArcWidth * (d.index + 1) : $$.innerRadius;
+        });
+        return function (d) {
+            var updated = $$.updateAngle(d);
+            return updated ? arc(updated) : "M 0 0";
+        };
+    };
+
+    ChartInternal.prototype.getArc = function (d, withoutUpdate, force) {
+        return force || this.isArcType(d.data) ? this.svgArc(d, withoutUpdate) : "M 0 0";
+    };
+
+    ChartInternal.prototype.transformForArcLabel = function (d) {
+        var $$ = this,
+            config = $$.config,
+            updated = $$.updateAngle(d),
+            c,
+            x,
+            y,
+            h,
+            ratio,
+            translate = "",
+            hasGauge = $$.hasType('gauge');
+        if (updated && !hasGauge) {
+            c = this.svgArc.centroid(updated);
+            x = isNaN(c[0]) ? 0 : c[0];
+            y = isNaN(c[1]) ? 0 : c[1];
+            h = Math.sqrt(x * x + y * y);
+            if ($$.hasType('donut') && config.donut_label_ratio) {
+                ratio = isFunction(config.donut_label_ratio) ? config.donut_label_ratio(d, $$.radius, h) : config.donut_label_ratio;
+            } else if ($$.hasType('pie') && config.pie_label_ratio) {
+                ratio = isFunction(config.pie_label_ratio) ? config.pie_label_ratio(d, $$.radius, h) : config.pie_label_ratio;
+            } else {
+                ratio = $$.radius && h ? (36 / $$.radius > 0.375 ? 1.175 - 36 / $$.radius : 0.8) * $$.radius / h : 0;
+            }
+            translate = "translate(" + x * ratio + ',' + y * ratio + ")";
+        } else if (updated && hasGauge && $$.filterTargetsToShow($$.data.targets).length > 1) {
+            var y1 = Math.sin(updated.endAngle - Math.PI / 2);
+            x = Math.cos(updated.endAngle - Math.PI / 2) * ($$.radiusExpanded + 25);
+            y = y1 * ($$.radiusExpanded + 15 - Math.abs(y1 * 10)) + 3;
+            translate = "translate(" + x + ',' + y + ")";
+        }
+        return translate;
+    };
+
+    ChartInternal.prototype.getArcRatio = function (d) {
+        var $$ = this,
+            config = $$.config,
+            whole = Math.PI * ($$.hasType('gauge') && !config.gauge_fullCircle ? 1 : 2);
+        return d ? (d.endAngle - d.startAngle) / whole : null;
+    };
+
+    ChartInternal.prototype.convertToArcData = function (d) {
+        return this.addName({
+            id: d.data.id,
+            value: d.value,
+            ratio: this.getArcRatio(d),
+            index: d.index
+        });
+    };
+
+    ChartInternal.prototype.textForArcLabel = function (d) {
+        var $$ = this,
+            updated,
+            value,
+            ratio,
+            id,
+            format;
+        if (!$$.shouldShowArcLabel()) {
+            return "";
+        }
+        updated = $$.updateAngle(d);
+        value = updated ? updated.value : null;
+        ratio = $$.getArcRatio(updated);
+        id = d.data.id;
+        if (!$$.hasType('gauge') && !$$.meetsArcLabelThreshold(ratio)) {
+            return "";
+        }
+        format = $$.getArcLabelFormat();
+        return format ? format(value, ratio, id) : $$.defaultArcValueFormat(value, ratio);
+    };
+
+    ChartInternal.prototype.textForGaugeMinMax = function (value, isMax) {
+        var $$ = this,
+            format = $$.getGaugeLabelExtents();
+
+        return format ? format(value, isMax) : value;
+    };
+
+    ChartInternal.prototype.expandArc = function (targetIds) {
+        var $$ = this,
+            interval;
+
+        // MEMO: avoid to cancel transition
+        if ($$.transiting) {
+            interval = window.setInterval(function () {
+                if (!$$.transiting) {
+                    window.clearInterval(interval);
+                    if ($$.legend.selectAll('.c3-legend-item-focused').size() > 0) {
+                        $$.expandArc(targetIds);
+                    }
+                }
+            }, 10);
+            return;
+        }
+
+        targetIds = $$.mapToTargetIds(targetIds);
+
+        $$.svg.selectAll($$.selectorTargets(targetIds, '.' + CLASS.chartArc)).each(function (d) {
+            if (!$$.shouldExpand(d.data.id)) {
+                return;
+            }
+            $$.d3.select(this).selectAll('path').transition().duration($$.expandDuration(d.data.id)).attr("d", $$.svgArcExpanded).transition().duration($$.expandDuration(d.data.id) * 2).attr("d", $$.svgArcExpandedSub).each(function (d) {
+                if ($$.isDonutType(d.data)) ;
+            });
+        });
+    };
+
+    ChartInternal.prototype.unexpandArc = function (targetIds) {
+        var $$ = this;
+
+        if ($$.transiting) {
+            return;
+        }
+
+        targetIds = $$.mapToTargetIds(targetIds);
+
+        $$.svg.selectAll($$.selectorTargets(targetIds, '.' + CLASS.chartArc)).selectAll('path').transition().duration(function (d) {
+            return $$.expandDuration(d.data.id);
+        }).attr("d", $$.svgArc);
+        $$.svg.selectAll('.' + CLASS.arc);
+    };
+
+    ChartInternal.prototype.expandDuration = function (id) {
+        var $$ = this,
+            config = $$.config;
+
+        if ($$.isDonutType(id)) {
+            return config.donut_expand_duration;
+        } else if ($$.isGaugeType(id)) {
+            return config.gauge_expand_duration;
+        } else if ($$.isPieType(id)) {
+            return config.pie_expand_duration;
+        } else {
+            return 50;
+        }
+    };
+
+    ChartInternal.prototype.shouldExpand = function (id) {
+        var $$ = this,
+            config = $$.config;
+        return $$.isDonutType(id) && config.donut_expand || $$.isGaugeType(id) && config.gauge_expand || $$.isPieType(id) && config.pie_expand;
+    };
+
+    ChartInternal.prototype.shouldShowArcLabel = function () {
+        var $$ = this,
+            config = $$.config,
+            shouldShow = true;
+        if ($$.hasType('donut')) {
+            shouldShow = config.donut_label_show;
+        } else if ($$.hasType('pie')) {
+            shouldShow = config.pie_label_show;
+        }
+        // when gauge, always true
+        return shouldShow;
+    };
+
+    ChartInternal.prototype.meetsArcLabelThreshold = function (ratio) {
+        var $$ = this,
+            config = $$.config,
+            threshold = $$.hasType('donut') ? config.donut_label_threshold : config.pie_label_threshold;
+        return ratio >= threshold;
+    };
+
+    ChartInternal.prototype.getArcLabelFormat = function () {
+        var $$ = this,
+            config = $$.config,
+            format = config.pie_label_format;
+        if ($$.hasType('gauge')) {
+            format = config.gauge_label_format;
+        } else if ($$.hasType('donut')) {
+            format = config.donut_label_format;
+        }
+        return format;
+    };
+
+    ChartInternal.prototype.getGaugeLabelExtents = function () {
+        var $$ = this,
+            config = $$.config;
+        return config.gauge_label_extents;
+    };
+
+    ChartInternal.prototype.getArcTitle = function () {
+        var $$ = this;
+        return $$.hasType('donut') ? $$.config.donut_title : "";
+    };
+
+    ChartInternal.prototype.updateTargetsForArc = function (targets) {
+        var $$ = this,
+            main = $$.main,
+            mainPies,
+            mainPieEnter,
+            classChartArc = $$.classChartArc.bind($$),
+            classArcs = $$.classArcs.bind($$),
+            classFocus = $$.classFocus.bind($$);
+        mainPies = main.select('.' + CLASS.chartArcs).selectAll('.' + CLASS.chartArc).data($$.pie(targets)).attr("class", function (d) {
+            return classChartArc(d) + classFocus(d.data);
+        });
+        mainPieEnter = mainPies.enter().append("g").attr("class", classChartArc);
+        mainPieEnter.append('g').attr('class', classArcs);
+        mainPieEnter.append("text").attr("dy", $$.hasType('gauge') ? "-.1em" : ".35em").style("opacity", 0).style("text-anchor", "middle").style("pointer-events", "none");
+        // MEMO: can not keep same color..., but not bad to update color in redraw
+        //mainPieUpdate.exit().remove();
+    };
+
+    ChartInternal.prototype.initArc = function () {
+        var $$ = this;
+        $$.arcs = $$.main.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartArcs).attr("transform", $$.getTranslate('arc'));
+        $$.arcs.append('text').attr('class', CLASS.chartArcsTitle).style("text-anchor", "middle").text($$.getArcTitle());
+    };
+
+    ChartInternal.prototype.redrawArc = function (duration, durationForExit, withTransform) {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            main = $$.main,
+            arcs,
+            mainArc,
+            arcLabelLines,
+            mainArcLabelLine,
+            hasGaugeType = $$.hasType('gauge');
+        arcs = main.selectAll('.' + CLASS.arcs).selectAll('.' + CLASS.arc).data($$.arcData.bind($$));
+        mainArc = arcs.enter().append('path').attr("class", $$.classArc.bind($$)).style("fill", function (d) {
+            return $$.color(d.data);
+        }).style("cursor", function (d) {
+            return config.interaction_enabled && config.data_selection_isselectable(d) ? "pointer" : null;
+        }).each(function (d) {
+            if ($$.isGaugeType(d.data)) {
+                d.startAngle = d.endAngle = config.gauge_startingAngle;
+            }
+            this._current = d;
+        }).merge(arcs);
+        if (hasGaugeType) {
+            arcLabelLines = main.selectAll('.' + CLASS.arcs).selectAll('.' + CLASS.arcLabelLine).data($$.arcData.bind($$));
+            mainArcLabelLine = arcLabelLines.enter().append('rect').attr("class", function (d) {
+                return CLASS.arcLabelLine + ' ' + CLASS.target + ' ' + CLASS.target + '-' + d.data.id;
+            }).merge(arcLabelLines);
+
+            if ($$.filterTargetsToShow($$.data.targets).length === 1) {
+                mainArcLabelLine.style("display", "none");
+            } else {
+                mainArcLabelLine.style("fill", function (d) {
+                    return config.color_pattern.length > 0 ? $$.levelColor(d.data.values[0].value) : $$.color(d.data);
+                }).style("display", config.gauge_labelLine_show ? "" : "none").each(function (d) {
+                    var lineLength = 0,
+                        lineThickness = 2,
+                        x = 0,
+                        y = 0,
+                        transform = "";
+                    if ($$.hiddenTargetIds.indexOf(d.data.id) < 0) {
+                        var updated = $$.updateAngle(d),
+                            innerLineLength = $$.gaugeArcWidth / $$.filterTargetsToShow($$.data.targets).length * (updated.index + 1),
+                            lineAngle = updated.endAngle - Math.PI / 2,
+                            arcInnerRadius = $$.radius - innerLineLength,
+                            linePositioningAngle = lineAngle - (arcInnerRadius === 0 ? 0 : 1 / arcInnerRadius);
+                        lineLength = $$.radiusExpanded - $$.radius + innerLineLength;
+                        x = Math.cos(linePositioningAngle) * arcInnerRadius;
+                        y = Math.sin(linePositioningAngle) * arcInnerRadius;
+                        transform = "rotate(" + lineAngle * 180 / Math.PI + ", " + x + ", " + y + ")";
+                    }
+                    d3.select(this).attr('x', x).attr('y', y).attr('width', lineLength).attr('height', lineThickness).attr('transform', transform).style("stroke-dasharray", "0, " + (lineLength + lineThickness) + ", 0");
+                });
+            }
+        }
+        mainArc.attr("transform", function (d) {
+            return !$$.isGaugeType(d.data) && withTransform ? "scale(0)" : "";
+        }).on('mouseover', config.interaction_enabled ? function (d) {
+            var updated, arcData;
+            if ($$.transiting) {
+                // skip while transiting
+                return;
+            }
+            updated = $$.updateAngle(d);
+            if (updated) {
+                arcData = $$.convertToArcData(updated);
+                // transitions
+                $$.expandArc(updated.data.id);
+                $$.api.focus(updated.data.id);
+                $$.toggleFocusLegend(updated.data.id, true);
+                $$.config.data_onmouseover(arcData, this);
+            }
+        } : null).on('mousemove', config.interaction_enabled ? function (d) {
+            var updated = $$.updateAngle(d),
+                arcData,
+                selectedData;
+            if (updated) {
+                arcData = $$.convertToArcData(updated), selectedData = [arcData];
+                $$.showTooltip(selectedData, this);
+            }
+        } : null).on('mouseout', config.interaction_enabled ? function (d) {
+            var updated, arcData;
+            if ($$.transiting) {
+                // skip while transiting
+                return;
+            }
+            updated = $$.updateAngle(d);
+            if (updated) {
+                arcData = $$.convertToArcData(updated);
+                // transitions
+                $$.unexpandArc(updated.data.id);
+                $$.api.revert();
+                $$.revertLegend();
+                $$.hideTooltip();
+                $$.config.data_onmouseout(arcData, this);
+            }
+        } : null).on('click', config.interaction_enabled ? function (d, i) {
+            var updated = $$.updateAngle(d),
+                arcData;
+            if (updated) {
+                arcData = $$.convertToArcData(updated);
+                if ($$.toggleShape) {
+                    $$.toggleShape(this, arcData, i);
+                }
+                $$.config.data_onclick.call($$.api, arcData, this);
+            }
+        } : null).each(function () {
+            $$.transiting = true;
+        }).transition().duration(duration).attrTween("d", function (d) {
+            var updated = $$.updateAngle(d),
+                interpolate;
+            if (!updated) {
+                return function () {
+                    return "M 0 0";
+                };
+            }
+            //                if (this._current === d) {
+            //                    this._current = {
+            //                        startAngle: Math.PI*2,
+            //                        endAngle: Math.PI*2,
+            //                    };
+            //                }
+            if (isNaN(this._current.startAngle)) {
+                this._current.startAngle = 0;
+            }
+            if (isNaN(this._current.endAngle)) {
+                this._current.endAngle = this._current.startAngle;
+            }
+            interpolate = d3.interpolate(this._current, updated);
+            this._current = interpolate(0);
+            return function (t) {
+                var interpolated = interpolate(t);
+                interpolated.data = d.data; // data.id will be updated by interporator
+                return $$.getArc(interpolated, true);
+            };
+        }).attr("transform", withTransform ? "scale(1)" : "").style("fill", function (d) {
+            return $$.levelColor ? $$.levelColor(d.data.values[0].value) : $$.color(d.data.id);
+        }) // Where gauge reading color would receive customization.
+        .call($$.endall, function () {
+            $$.transiting = false;
+        });
+        arcs.exit().transition().duration(durationForExit).style('opacity', 0).remove();
+        main.selectAll('.' + CLASS.chartArc).select('text').style("opacity", 0).attr('class', function (d) {
+            return $$.isGaugeType(d.data) ? CLASS.gaugeValue : '';
+        }).text($$.textForArcLabel.bind($$)).attr("transform", $$.transformForArcLabel.bind($$)).style('font-size', function (d) {
+            return $$.isGaugeType(d.data) && $$.filterTargetsToShow($$.data.targets).length === 1 ? Math.round($$.radius / 5) + 'px' : '';
+        }).transition().duration(duration).style("opacity", function (d) {
+            return $$.isTargetToShow(d.data.id) && $$.isArcType(d.data) ? 1 : 0;
+        });
+        main.select('.' + CLASS.chartArcsTitle).style("opacity", $$.hasType('donut') || hasGaugeType ? 1 : 0);
+
+        if (hasGaugeType) {
+            var index = 0;
+            var backgroundArc = $$.arcs.select('g.' + CLASS.chartArcsBackground).selectAll('path.' + CLASS.chartArcsBackground).data($$.data.targets);
+
+            backgroundArc.enter().append("path").attr("class", function (d, i) {
+                return CLASS.chartArcsBackground + ' ' + CLASS.chartArcsBackground + '-' + i;
+            }).merge(backgroundArc).attr("d", function (d1) {
+                if ($$.hiddenTargetIds.indexOf(d1.id) >= 0) {
+                    return "M 0 0";
+                }
+
+                var d = {
+                    data: [{ value: config.gauge_max }],
+                    startAngle: config.gauge_startingAngle,
+                    endAngle: -1 * config.gauge_startingAngle * (config.gauge_fullCircle ? Math.PI : 1),
+                    index: index++
+                };
+                return $$.getArc(d, true, true);
+            });
+
+            backgroundArc.exit().remove();
+
+            $$.arcs.select('.' + CLASS.chartArcsGaugeUnit).attr("dy", ".75em").text(config.gauge_label_show ? config.gauge_units : '');
+            $$.arcs.select('.' + CLASS.chartArcsGaugeMin).attr("dx", -1 * ($$.innerRadius + ($$.radius - $$.innerRadius) / (config.gauge_fullCircle ? 1 : 2)) + "px").attr("dy", "1.2em").text(config.gauge_label_show ? $$.textForGaugeMinMax(config.gauge_min, false) : '');
+            $$.arcs.select('.' + CLASS.chartArcsGaugeMax).attr("dx", $$.innerRadius + ($$.radius - $$.innerRadius) / (config.gauge_fullCircle ? 1 : 2) + "px").attr("dy", "1.2em").text(config.gauge_label_show ? $$.textForGaugeMinMax(config.gauge_max, true) : '');
+        }
+    };
+    ChartInternal.prototype.initGauge = function () {
+        var arcs = this.arcs;
+        if (this.hasType('gauge')) {
+            arcs.append('g').attr("class", CLASS.chartArcsBackground);
+            arcs.append("text").attr("class", CLASS.chartArcsGaugeUnit).style("text-anchor", "middle").style("pointer-events", "none");
+            arcs.append("text").attr("class", CLASS.chartArcsGaugeMin).style("text-anchor", "middle").style("pointer-events", "none");
+            arcs.append("text").attr("class", CLASS.chartArcsGaugeMax).style("text-anchor", "middle").style("pointer-events", "none");
+        }
+    };
+    ChartInternal.prototype.getGaugeLabelHeight = function () {
+        return this.config.gauge_label_show ? 20 : 0;
+    };
+
+    ChartInternal.prototype.hasCaches = function (ids) {
+        for (var i = 0; i < ids.length; i++) {
+            if (!(ids[i] in this.cache)) {
+                return false;
+            }
+        }
+        return true;
+    };
+    ChartInternal.prototype.addCache = function (id, target) {
+        this.cache[id] = this.cloneTarget(target);
+    };
+    ChartInternal.prototype.getCaches = function (ids) {
+        var targets = [],
+            i;
+        for (i = 0; i < ids.length; i++) {
+            if (ids[i] in this.cache) {
+                targets.push(this.cloneTarget(this.cache[ids[i]]));
+            }
+        }
+        return targets;
+    };
+
+    ChartInternal.prototype.categoryName = function (i) {
+        var config = this.config;
+        return i < config.axis_x_categories.length ? config.axis_x_categories[i] : i;
+    };
+
+    ChartInternal.prototype.generateTargetClass = function (targetId) {
+        return targetId || targetId === 0 ? ('-' + targetId).replace(/\s/g, '-') : '';
+    };
+    ChartInternal.prototype.generateClass = function (prefix, targetId) {
+        return " " + prefix + " " + prefix + this.generateTargetClass(targetId);
+    };
+    ChartInternal.prototype.classText = function (d) {
+        return this.generateClass(CLASS.text, d.index);
+    };
+    ChartInternal.prototype.classTexts = function (d) {
+        return this.generateClass(CLASS.texts, d.id);
+    };
+    ChartInternal.prototype.classShape = function (d) {
+        return this.generateClass(CLASS.shape, d.index);
+    };
+    ChartInternal.prototype.classShapes = function (d) {
+        return this.generateClass(CLASS.shapes, d.id);
+    };
+    ChartInternal.prototype.classLine = function (d) {
+        return this.classShape(d) + this.generateClass(CLASS.line, d.id);
+    };
+    ChartInternal.prototype.classLines = function (d) {
+        return this.classShapes(d) + this.generateClass(CLASS.lines, d.id);
+    };
+    ChartInternal.prototype.classCircle = function (d) {
+        return this.classShape(d) + this.generateClass(CLASS.circle, d.index);
+    };
+    ChartInternal.prototype.classCircles = function (d) {
+        return this.classShapes(d) + this.generateClass(CLASS.circles, d.id);
+    };
+    ChartInternal.prototype.classBar = function (d) {
+        return this.classShape(d) + this.generateClass(CLASS.bar, d.index);
+    };
+    ChartInternal.prototype.classBars = function (d) {
+        return this.classShapes(d) + this.generateClass(CLASS.bars, d.id);
+    };
+    ChartInternal.prototype.classArc = function (d) {
+        return this.classShape(d.data) + this.generateClass(CLASS.arc, d.data.id);
+    };
+    ChartInternal.prototype.classArcs = function (d) {
+        return this.classShapes(d.data) + this.generateClass(CLASS.arcs, d.data.id);
+    };
+    ChartInternal.prototype.classArea = function (d) {
+        return this.classShape(d) + this.generateClass(CLASS.area, d.id);
+    };
+    ChartInternal.prototype.classAreas = function (d) {
+        return this.classShapes(d) + this.generateClass(CLASS.areas, d.id);
+    };
+    ChartInternal.prototype.classRegion = function (d, i) {
+        return this.generateClass(CLASS.region, i) + ' ' + ('class' in d ? d['class'] : '');
+    };
+    ChartInternal.prototype.classEvent = function (d) {
+        return this.generateClass(CLASS.eventRect, d.index);
+    };
+    ChartInternal.prototype.classTarget = function (id) {
+        var $$ = this;
+        var additionalClassSuffix = $$.config.data_classes[id],
+            additionalClass = '';
+        if (additionalClassSuffix) {
+            additionalClass = ' ' + CLASS.target + '-' + additionalClassSuffix;
+        }
+        return $$.generateClass(CLASS.target, id) + additionalClass;
+    };
+    ChartInternal.prototype.classFocus = function (d) {
+        return this.classFocused(d) + this.classDefocused(d);
+    };
+    ChartInternal.prototype.classFocused = function (d) {
+        return ' ' + (this.focusedTargetIds.indexOf(d.id) >= 0 ? CLASS.focused : '');
+    };
+    ChartInternal.prototype.classDefocused = function (d) {
+        return ' ' + (this.defocusedTargetIds.indexOf(d.id) >= 0 ? CLASS.defocused : '');
+    };
+    ChartInternal.prototype.classChartText = function (d) {
+        return CLASS.chartText + this.classTarget(d.id);
+    };
+    ChartInternal.prototype.classChartLine = function (d) {
+        return CLASS.chartLine + this.classTarget(d.id);
+    };
+    ChartInternal.prototype.classChartBar = function (d) {
+        return CLASS.chartBar + this.classTarget(d.id);
+    };
+    ChartInternal.prototype.classChartArc = function (d) {
+        return CLASS.chartArc + this.classTarget(d.data.id);
+    };
+    ChartInternal.prototype.getTargetSelectorSuffix = function (targetId) {
+        return this.generateTargetClass(targetId).replace(/([?!@#$%^&*()_=+,.<>'":;\[\]\/|~`{}\\])/g, '\\$1');
+    };
+    ChartInternal.prototype.selectorTarget = function (id, prefix) {
+        return (prefix || '') + '.' + CLASS.target + this.getTargetSelectorSuffix(id);
+    };
+    ChartInternal.prototype.selectorTargets = function (ids, prefix) {
+        var $$ = this;
+        ids = ids || [];
+        return ids.length ? ids.map(function (id) {
+            return $$.selectorTarget(id, prefix);
+        }) : null;
+    };
+    ChartInternal.prototype.selectorLegend = function (id) {
+        return '.' + CLASS.legendItem + this.getTargetSelectorSuffix(id);
+    };
+    ChartInternal.prototype.selectorLegends = function (ids) {
+        var $$ = this;
+        return ids && ids.length ? ids.map(function (id) {
+            return $$.selectorLegend(id);
+        }) : null;
+    };
+
+    ChartInternal.prototype.getClipPath = function (id) {
+        var isIE9 = window.navigator.appVersion.toLowerCase().indexOf("msie 9.") >= 0;
+        return "url(" + (isIE9 ? "" : document.URL.split('#')[0]) + "#" + id + ")";
+    };
+    ChartInternal.prototype.appendClip = function (parent, id) {
+        return parent.append("clipPath").attr("id", id).append("rect");
+    };
+    ChartInternal.prototype.getAxisClipX = function (forHorizontal) {
+        // axis line width + padding for left
+        var left = Math.max(30, this.margin.left);
+        return forHorizontal ? -(1 + left) : -(left - 1);
+    };
+    ChartInternal.prototype.getAxisClipY = function (forHorizontal) {
+        return forHorizontal ? -20 : -this.margin.top;
+    };
+    ChartInternal.prototype.getXAxisClipX = function () {
+        var $$ = this;
+        return $$.getAxisClipX(!$$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getXAxisClipY = function () {
+        var $$ = this;
+        return $$.getAxisClipY(!$$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getYAxisClipX = function () {
+        var $$ = this;
+        return $$.config.axis_y_inner ? -1 : $$.getAxisClipX($$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getYAxisClipY = function () {
+        var $$ = this;
+        return $$.getAxisClipY($$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getAxisClipWidth = function (forHorizontal) {
+        var $$ = this,
+            left = Math.max(30, $$.margin.left),
+            right = Math.max(30, $$.margin.right);
+        // width + axis line width + padding for left/right
+        return forHorizontal ? $$.width + 2 + left + right : $$.margin.left + 20;
+    };
+    ChartInternal.prototype.getAxisClipHeight = function (forHorizontal) {
+        // less than 20 is not enough to show the axis label 'outer' without legend
+        return (forHorizontal ? this.margin.bottom : this.margin.top + this.height) + 20;
+    };
+    ChartInternal.prototype.getXAxisClipWidth = function () {
+        var $$ = this;
+        return $$.getAxisClipWidth(!$$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getXAxisClipHeight = function () {
+        var $$ = this;
+        return $$.getAxisClipHeight(!$$.config.axis_rotated);
+    };
+    ChartInternal.prototype.getYAxisClipWidth = function () {
+        var $$ = this;
+        return $$.getAxisClipWidth($$.config.axis_rotated) + ($$.config.axis_y_inner ? 20 : 0);
+    };
+    ChartInternal.prototype.getYAxisClipHeight = function () {
+        var $$ = this;
+        return $$.getAxisClipHeight($$.config.axis_rotated);
+    };
+
+    ChartInternal.prototype.generateColor = function () {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3,
+            colors = config.data_colors,
+            pattern = notEmpty(config.color_pattern) ? config.color_pattern : d3.schemeCategory10,
+            callback = config.data_color,
+            ids = [];
+
+        return function (d) {
+            var id = d.id || d.data && d.data.id || d,
+                color;
+
+            // if callback function is provided
+            if (colors[id] instanceof Function) {
+                color = colors[id](d);
+            }
+            // if specified, choose that color
+            else if (colors[id]) {
+                    color = colors[id];
+                }
+                // if not specified, choose from pattern
+                else {
+                        if (ids.indexOf(id) < 0) {
+                            ids.push(id);
+                        }
+                        color = pattern[ids.indexOf(id) % pattern.length];
+                        colors[id] = color;
+                    }
+            return callback instanceof Function ? callback(color, d) : color;
+        };
+    };
+    ChartInternal.prototype.generateLevelColor = function () {
+        var $$ = this,
+            config = $$.config,
+            colors = config.color_pattern,
+            threshold = config.color_threshold,
+            asValue = threshold.unit === 'value',
+            values = threshold.values && threshold.values.length ? threshold.values : [],
+            max = threshold.max || 100;
+        return notEmpty(config.color_threshold) ? function (value) {
+            var i,
+                v,
+                color = colors[colors.length - 1];
+            for (i = 0; i < values.length; i++) {
+                v = asValue ? value : value * 100 / max;
+                if (v < values[i]) {
+                    color = colors[i];
+                    break;
+                }
+            }
+            return color;
+        } : null;
+    };
+
+    ChartInternal.prototype.getDefaultConfig = function () {
+        var config = {
+            bindto: '#chart',
+            svg_classname: undefined,
+            size_width: undefined,
+            size_height: undefined,
+            padding_left: undefined,
+            padding_right: undefined,
+            padding_top: undefined,
+            padding_bottom: undefined,
+            resize_auto: true,
+            zoom_enabled: false,
+            zoom_initialRange: undefined,
+            zoom_type: 'scroll',
+            zoom_disableDefaultBehavior: false,
+            zoom_privileged: false,
+            zoom_rescale: false,
+            zoom_onzoom: function zoom_onzoom() {},
+            zoom_onzoomstart: function zoom_onzoomstart() {},
+            zoom_onzoomend: function zoom_onzoomend() {},
+            zoom_x_min: undefined,
+            zoom_x_max: undefined,
+            interaction_brighten: true,
+            interaction_enabled: true,
+            onmouseover: function onmouseover() {},
+            onmouseout: function onmouseout() {},
+            onresize: function onresize() {},
+            onresized: function onresized() {},
+            oninit: function oninit() {},
+            onrendered: function onrendered() {},
+            transition_duration: 350,
+            data_x: undefined,
+            data_xs: {},
+            data_xFormat: '%Y-%m-%d',
+            data_xLocaltime: true,
+            data_xSort: true,
+            data_idConverter: function data_idConverter(id) {
+                return id;
+            },
+            data_names: {},
+            data_classes: {},
+            data_groups: [],
+            data_axes: {},
+            data_type: undefined,
+            data_types: {},
+            data_labels: {},
+            data_order: 'desc',
+            data_regions: {},
+            data_color: undefined,
+            data_colors: {},
+            data_hide: false,
+            data_filter: undefined,
+            data_selection_enabled: false,
+            data_selection_grouped: false,
+            data_selection_isselectable: function data_selection_isselectable() {
+                return true;
+            },
+            data_selection_multiple: true,
+            data_selection_draggable: false,
+            data_onclick: function data_onclick() {},
+            data_onmouseover: function data_onmouseover() {},
+            data_onmouseout: function data_onmouseout() {},
+            data_onselected: function data_onselected() {},
+            data_onunselected: function data_onunselected() {},
+            data_url: undefined,
+            data_headers: undefined,
+            data_json: undefined,
+            data_rows: undefined,
+            data_columns: undefined,
+            data_mimeType: undefined,
+            data_keys: undefined,
+            // configuration for no plot-able data supplied.
+            data_empty_label_text: "",
+            // subchart
+            subchart_show: false,
+            subchart_size_height: 60,
+            subchart_axis_x_show: true,
+            subchart_onbrush: function subchart_onbrush() {},
+            // color
+            color_pattern: [],
+            color_threshold: {},
+            // legend
+            legend_show: true,
+            legend_hide: false,
+            legend_position: 'bottom',
+            legend_inset_anchor: 'top-left',
+            legend_inset_x: 10,
+            legend_inset_y: 0,
+            legend_inset_step: undefined,
+            legend_item_onclick: undefined,
+            legend_item_onmouseover: undefined,
+            legend_item_onmouseout: undefined,
+            legend_equally: false,
+            legend_padding: 0,
+            legend_item_tile_width: 10,
+            legend_item_tile_height: 10,
+            // axis
+            axis_rotated: false,
+            axis_x_show: true,
+            axis_x_type: 'indexed',
+            axis_x_localtime: true,
+            axis_x_categories: [],
+            axis_x_tick_centered: false,
+            axis_x_tick_format: undefined,
+            axis_x_tick_culling: {},
+            axis_x_tick_culling_max: 10,
+            axis_x_tick_count: undefined,
+            axis_x_tick_fit: true,
+            axis_x_tick_values: null,
+            axis_x_tick_rotate: 0,
+            axis_x_tick_outer: true,
+            axis_x_tick_multiline: true,
+            axis_x_tick_multilineMax: 0,
+            axis_x_tick_width: null,
+            axis_x_max: undefined,
+            axis_x_min: undefined,
+            axis_x_padding: {},
+            axis_x_height: undefined,
+            axis_x_selection: undefined,
+            axis_x_label: {},
+            axis_x_inner: undefined,
+            axis_y_show: true,
+            axis_y_type: undefined,
+            axis_y_max: undefined,
+            axis_y_min: undefined,
+            axis_y_inverted: false,
+            axis_y_center: undefined,
+            axis_y_inner: undefined,
+            axis_y_label: {},
+            axis_y_tick_format: undefined,
+            axis_y_tick_outer: true,
+            axis_y_tick_values: null,
+            axis_y_tick_rotate: 0,
+            axis_y_tick_count: undefined,
+            axis_y_tick_time_type: undefined,
+            axis_y_tick_time_interval: undefined,
+            axis_y_padding: {},
+            axis_y_default: undefined,
+            axis_y2_show: false,
+            axis_y2_max: undefined,
+            axis_y2_min: undefined,
+            axis_y2_inverted: false,
+            axis_y2_center: undefined,
+            axis_y2_inner: undefined,
+            axis_y2_label: {},
+            axis_y2_tick_format: undefined,
+            axis_y2_tick_outer: true,
+            axis_y2_tick_values: null,
+            axis_y2_tick_count: undefined,
+            axis_y2_padding: {},
+            axis_y2_default: undefined,
+            // grid
+            grid_x_show: false,
+            grid_x_type: 'tick',
+            grid_x_lines: [],
+            grid_y_show: false,
+            // not used
+            // grid_y_type: 'tick',
+            grid_y_lines: [],
+            grid_y_ticks: 10,
+            grid_focus_show: true,
+            grid_lines_front: true,
+            // point - point of each data
+            point_show: true,
+            point_r: 2.5,
+            point_sensitivity: 10,
+            point_focus_expand_enabled: true,
+            point_focus_expand_r: undefined,
+            point_select_r: undefined,
+            // line
+            line_connectNull: false,
+            line_step_type: 'step',
+            // bar
+            bar_width: undefined,
+            bar_width_ratio: 0.6,
+            bar_width_max: undefined,
+            bar_zerobased: true,
+            bar_space: 0,
+            // area
+            area_zerobased: true,
+            area_above: false,
+            // pie
+            pie_label_show: true,
+            pie_label_format: undefined,
+            pie_label_threshold: 0.05,
+            pie_label_ratio: undefined,
+            pie_expand: {},
+            pie_expand_duration: 50,
+            // gauge
+            gauge_fullCircle: false,
+            gauge_label_show: true,
+            gauge_labelLine_show: true,
+            gauge_label_format: undefined,
+            gauge_min: 0,
+            gauge_max: 100,
+            gauge_startingAngle: -1 * Math.PI / 2,
+            gauge_label_extents: undefined,
+            gauge_units: undefined,
+            gauge_width: undefined,
+            gauge_arcs_minWidth: 5,
+            gauge_expand: {},
+            gauge_expand_duration: 50,
+            // donut
+            donut_label_show: true,
+            donut_label_format: undefined,
+            donut_label_threshold: 0.05,
+            donut_label_ratio: undefined,
+            donut_width: undefined,
+            donut_title: "",
+            donut_expand: {},
+            donut_expand_duration: 50,
+            // spline
+            spline_interpolation_type: 'cardinal',
+            // region - region to change style
+            regions: [],
+            // tooltip - show when mouseover on each data
+            tooltip_show: true,
+            tooltip_grouped: true,
+            tooltip_order: undefined,
+            tooltip_format_title: undefined,
+            tooltip_format_name: undefined,
+            tooltip_format_value: undefined,
+            tooltip_position: undefined,
+            tooltip_contents: function tooltip_contents(d, defaultTitleFormat, defaultValueFormat, color) {
+                return this.getTooltipContent ? this.getTooltipContent(d, defaultTitleFormat, defaultValueFormat, color) : '';
+            },
+            tooltip_init_show: false,
+            tooltip_init_x: 0,
+            tooltip_init_position: { top: '0px', left: '50px' },
+            tooltip_onshow: function tooltip_onshow() {},
+            tooltip_onhide: function tooltip_onhide() {},
+            // title
+            title_text: undefined,
+            title_padding: {
+                top: 0,
+                right: 0,
+                bottom: 0,
+                left: 0
+            },
+            title_position: 'top-center'
+        };
+
+        Object.keys(this.additionalConfig).forEach(function (key) {
+            config[key] = this.additionalConfig[key];
+        }, this);
+
+        return config;
+    };
+    ChartInternal.prototype.additionalConfig = {};
+
+    ChartInternal.prototype.loadConfig = function (config) {
+        var this_config = this.config,
+            target,
+            keys,
+            read;
+        function find() {
+            var key = keys.shift();
+            //        console.log("key =>", key, ", target =>", target);
+            if (key && target && (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && key in target) {
+                target = target[key];
+                return find();
+            } else if (!key) {
+                return target;
+            } else {
+                return undefined;
+            }
+        }
+        Object.keys(this_config).forEach(function (key) {
+            target = config;
+            keys = key.split('_');
+            read = find();
+            //        console.log("CONFIG : ", key, read);
+            if (isDefined(read)) {
+                this_config[key] = read;
+            }
+        });
+    };
+
+    ChartInternal.prototype.convertUrlToData = function (url, mimeType, headers, keys, done) {
+        var $$ = this,
+            type = mimeType ? mimeType : 'csv',
+            f,
+            converter;
+
+        if (type === 'json') {
+            f = $$.d3.json;
+            converter = $$.convertJsonToData;
+        } else if (type === 'tsv') {
+            f = $$.d3.tsv;
+            converter = $$.convertXsvToData;
+        } else {
+            f = $$.d3.csv;
+            converter = $$.convertXsvToData;
+        }
+
+        f(url, headers).then(function (data) {
+            done.call($$, converter.call($$, data, keys));
+        }).catch(function (error) {
+            throw error;
+        });
+    };
+    ChartInternal.prototype.convertXsvToData = function (xsv) {
+        var keys = xsv.columns,
+            rows = xsv;
+        if (rows.length === 0) {
+            return { keys: keys, rows: [keys.reduce(function (row, key) {
+                    return Object.assign(row, defineProperty({}, key, null));
+                }, {})] };
+        } else {
+            // [].concat() is to convert result into a plain array otherwise
+            // test is not happy because rows have properties.
+            return { keys: keys, rows: [].concat(xsv) };
+        }
+    };
+    ChartInternal.prototype.convertJsonToData = function (json, keys) {
+        var $$ = this,
+            new_rows = [],
+            targetKeys,
+            data;
+        if (keys) {
+            // when keys specified, json would be an array that includes objects
+            if (keys.x) {
+                targetKeys = keys.value.concat(keys.x);
+                $$.config.data_x = keys.x;
+            } else {
+                targetKeys = keys.value;
+            }
+            new_rows.push(targetKeys);
+            json.forEach(function (o) {
+                var new_row = [];
+                targetKeys.forEach(function (key) {
+                    // convert undefined to null because undefined data will be removed in convertDataToTargets()
+                    var v = $$.findValueInJson(o, key);
+                    if (isUndefined(v)) {
+                        v = null;
+                    }
+                    new_row.push(v);
+                });
+                new_rows.push(new_row);
+            });
+            data = $$.convertRowsToData(new_rows);
+        } else {
+            Object.keys(json).forEach(function (key) {
+                new_rows.push([key].concat(json[key]));
+            });
+            data = $$.convertColumnsToData(new_rows);
+        }
+        return data;
+    };
+    ChartInternal.prototype.findValueInJson = function (object, path) {
+        path = path.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties (replace [] with .)
+        path = path.replace(/^\./, ''); // strip a leading dot
+        var pathArray = path.split('.');
+        for (var i = 0; i < pathArray.length; ++i) {
+            var k = pathArray[i];
+            if (k in object) {
+                object = object[k];
+            } else {
+                return;
+            }
+        }
+        return object;
+    };
+
+    /**
+     * Converts the rows to normalized data.
+     * @param {any[][]} rows The row data
+     * @return {Object}
+     */
+    ChartInternal.prototype.convertRowsToData = function (rows) {
+        var newRows = [];
+        var keys = rows[0];
+
+        for (var i = 1; i < rows.length; i++) {
+            var newRow = {};
+            for (var j = 0; j < rows[i].length; j++) {
+                if (isUndefined(rows[i][j])) {
+                    throw new Error("Source data is missing a component at (" + i + "," + j + ")!");
+                }
+                newRow[keys[j]] = rows[i][j];
+            }
+            newRows.push(newRow);
+        }
+        return { keys: keys, rows: newRows };
+    };
+
+    /**
+     * Converts the columns to normalized data.
+     * @param {any[][]} columns The column data
+     * @return {Object}
+     */
+    ChartInternal.prototype.convertColumnsToData = function (columns) {
+        var newRows = [];
+        var keys = [];
+
+        for (var i = 0; i < columns.length; i++) {
+            var key = columns[i][0];
+            for (var j = 1; j < columns[i].length; j++) {
+                if (isUndefined(newRows[j - 1])) {
+                    newRows[j - 1] = {};
+                }
+                if (isUndefined(columns[i][j])) {
+                    throw new Error("Source data is missing a component at (" + i + "," + j + ")!");
+                }
+                newRows[j - 1][key] = columns[i][j];
+            }
+            keys.push(key);
+        }
+
+        return { keys: keys, rows: newRows };
+    };
+
+    /**
+     * Converts the data format into the target format.
+     * @param {!Object} data
+     * @param {!Array} data.keys Ordered list of target IDs.
+     * @param {!Array} data.rows Rows of data to convert.
+     * @param {boolean} appendXs True to append to $$.data.xs, False to replace.
+     * @return {!Array}
+     */
+    ChartInternal.prototype.convertDataToTargets = function (data, appendXs) {
+        var $$ = this,
+            config = $$.config,
+            targets,
+            ids,
+            xs,
+            keys;
+
+        // handles format where keys are not orderly provided
+        if (isArray(data)) {
+            keys = Object.keys(data[0]);
+        } else {
+            keys = data.keys;
+            data = data.rows;
+        }
+
+        ids = keys.filter($$.isNotX, $$);
+        xs = keys.filter($$.isX, $$);
+
+        // save x for update data by load when custom x and c3.x API
+        ids.forEach(function (id) {
+            var xKey = $$.getXKey(id);
+
+            if ($$.isCustomX() || $$.isTimeSeries()) {
+                // if included in input data
+                if (xs.indexOf(xKey) >= 0) {
+                    $$.data.xs[id] = (appendXs && $$.data.xs[id] ? $$.data.xs[id] : []).concat(data.map(function (d) {
+                        return d[xKey];
+                    }).filter(isValue).map(function (rawX, i) {
+                        return $$.generateTargetX(rawX, id, i);
+                    }));
+                }
+                // if not included in input data, find from preloaded data of other id's x
+                else if (config.data_x) {
+                        $$.data.xs[id] = $$.getOtherTargetXs();
+                    }
+                    // if not included in input data, find from preloaded data
+                    else if (notEmpty(config.data_xs)) {
+                            $$.data.xs[id] = $$.getXValuesOfXKey(xKey, $$.data.targets);
+                        }
+                // MEMO: if no x included, use same x of current will be used
+            } else {
+                $$.data.xs[id] = data.map(function (d, i) {
+                    return i;
+                });
+            }
+        });
+
+        // check x is defined
+        ids.forEach(function (id) {
+            if (!$$.data.xs[id]) {
+                throw new Error('x is not defined for id = "' + id + '".');
+            }
+        });
+
+        // convert to target
+        targets = ids.map(function (id, index) {
+            var convertedId = config.data_idConverter(id);
+            return {
+                id: convertedId,
+                id_org: id,
+                values: data.map(function (d, i) {
+                    var xKey = $$.getXKey(id),
+                        rawX = d[xKey],
+                        value = d[id] !== null && !isNaN(d[id]) ? +d[id] : null,
+                        x;
+                    // use x as categories if custom x and categorized
+                    if ($$.isCustomX() && $$.isCategorized() && !isUndefined(rawX)) {
+                        if (index === 0 && i === 0) {
+                            config.axis_x_categories = [];
+                        }
+                        x = config.axis_x_categories.indexOf(rawX);
+                        if (x === -1) {
+                            x = config.axis_x_categories.length;
+                            config.axis_x_categories.push(rawX);
+                        }
+                    } else {
+                        x = $$.generateTargetX(rawX, id, i);
+                    }
+                    // mark as x = undefined if value is undefined and filter to remove after mapped
+                    if (isUndefined(d[id]) || $$.data.xs[id].length <= i) {
+                        x = undefined;
+                    }
+                    return { x: x, value: value, id: convertedId };
+                }).filter(function (v) {
+                    return isDefined(v.x);
+                })
+            };
+        });
+
+        // finish targets
+        targets.forEach(function (t) {
+            var i;
+            // sort values by its x
+            if (config.data_xSort) {
+                t.values = t.values.sort(function (v1, v2) {
+                    var x1 = v1.x || v1.x === 0 ? v1.x : Infinity,
+                        x2 = v2.x || v2.x === 0 ? v2.x : Infinity;
+                    return x1 - x2;
+                });
+            }
+            // indexing each value
+            i = 0;
+            t.values.forEach(function (v) {
+                v.index = i++;
+            });
+            // this needs to be sorted because its index and value.index is identical
+            $$.data.xs[t.id].sort(function (v1, v2) {
+                return v1 - v2;
+            });
+        });
+
+        // cache information about values
+        $$.hasNegativeValue = $$.hasNegativeValueInTargets(targets);
+        $$.hasPositiveValue = $$.hasPositiveValueInTargets(targets);
+
+        // set target types
+        if (config.data_type) {
+            $$.setTargetType($$.mapToIds(targets).filter(function (id) {
+                return !(id in config.data_types);
+            }), config.data_type);
+        }
+
+        // cache as original id keyed
+        targets.forEach(function (d) {
+            $$.addCache(d.id_org, d);
+        });
+
+        return targets;
+    };
+
+    ChartInternal.prototype.isX = function (key) {
+        var $$ = this,
+            config = $$.config;
+        return config.data_x && key === config.data_x || notEmpty(config.data_xs) && hasValue(config.data_xs, key);
+    };
+    ChartInternal.prototype.isNotX = function (key) {
+        return !this.isX(key);
+    };
+    ChartInternal.prototype.getXKey = function (id) {
+        var $$ = this,
+            config = $$.config;
+        return config.data_x ? config.data_x : notEmpty(config.data_xs) ? config.data_xs[id] : null;
+    };
+    ChartInternal.prototype.getXValuesOfXKey = function (key, targets) {
+        var $$ = this,
+            xValues,
+            ids = targets && notEmpty(targets) ? $$.mapToIds(targets) : [];
+        ids.forEach(function (id) {
+            if ($$.getXKey(id) === key) {
+                xValues = $$.data.xs[id];
+            }
+        });
+        return xValues;
+    };
+    ChartInternal.prototype.getXValue = function (id, i) {
+        var $$ = this;
+        return id in $$.data.xs && $$.data.xs[id] && isValue($$.data.xs[id][i]) ? $$.data.xs[id][i] : i;
+    };
+    ChartInternal.prototype.getOtherTargetXs = function () {
+        var $$ = this,
+            idsForX = Object.keys($$.data.xs);
+        return idsForX.length ? $$.data.xs[idsForX[0]] : null;
+    };
+    ChartInternal.prototype.getOtherTargetX = function (index) {
+        var xs = this.getOtherTargetXs();
+        return xs && index < xs.length ? xs[index] : null;
+    };
+    ChartInternal.prototype.addXs = function (xs) {
+        var $$ = this;
+        Object.keys(xs).forEach(function (id) {
+            $$.config.data_xs[id] = xs[id];
+        });
+    };
+    ChartInternal.prototype.addName = function (data) {
+        var $$ = this,
+            name;
+        if (data) {
+            name = $$.config.data_names[data.id];
+            data.name = name !== undefined ? name : data.id;
+        }
+        return data;
+    };
+    ChartInternal.prototype.getValueOnIndex = function (values, index) {
+        var valueOnIndex = values.filter(function (v) {
+            return v.index === index;
+        });
+        return valueOnIndex.length ? valueOnIndex[0] : null;
+    };
+    ChartInternal.prototype.updateTargetX = function (targets, x) {
+        var $$ = this;
+        targets.forEach(function (t) {
+            t.values.forEach(function (v, i) {
+                v.x = $$.generateTargetX(x[i], t.id, i);
+            });
+            $$.data.xs[t.id] = x;
+        });
+    };
+    ChartInternal.prototype.updateTargetXs = function (targets, xs) {
+        var $$ = this;
+        targets.forEach(function (t) {
+            if (xs[t.id]) {
+                $$.updateTargetX([t], xs[t.id]);
+            }
+        });
+    };
+    ChartInternal.prototype.generateTargetX = function (rawX, id, index) {
+        var $$ = this,
+            x;
+        if ($$.isTimeSeries()) {
+            x = rawX ? $$.parseDate(rawX) : $$.parseDate($$.getXValue(id, index));
+        } else if ($$.isCustomX() && !$$.isCategorized()) {
+            x = isValue(rawX) ? +rawX : $$.getXValue(id, index);
+        } else {
+            x = index;
+        }
+        return x;
+    };
+    ChartInternal.prototype.cloneTarget = function (target) {
+        return {
+            id: target.id,
+            id_org: target.id_org,
+            values: target.values.map(function (d) {
+                return {
+                    x: d.x,
+                    value: d.value,
+                    id: d.id
+                };
+            })
+        };
+    };
+    ChartInternal.prototype.getMaxDataCount = function () {
+        var $$ = this;
+        return $$.d3.max($$.data.targets, function (t) {
+            return t.values.length;
+        });
+    };
+    ChartInternal.prototype.mapToIds = function (targets) {
+        return targets.map(function (d) {
+            return d.id;
+        });
+    };
+    ChartInternal.prototype.mapToTargetIds = function (ids) {
+        var $$ = this;
+        return ids ? [].concat(ids) : $$.mapToIds($$.data.targets);
+    };
+    ChartInternal.prototype.hasTarget = function (targets, id) {
+        var ids = this.mapToIds(targets),
+            i;
+        for (i = 0; i < ids.length; i++) {
+            if (ids[i] === id) {
+                return true;
+            }
+        }
+        return false;
+    };
+    ChartInternal.prototype.isTargetToShow = function (targetId) {
+        return this.hiddenTargetIds.indexOf(targetId) < 0;
+    };
+    ChartInternal.prototype.isLegendToShow = function (targetId) {
+        return this.hiddenLegendIds.indexOf(targetId) < 0;
+    };
+    ChartInternal.prototype.filterTargetsToShow = function (targets) {
+        var $$ = this;
+        return targets.filter(function (t) {
+            return $$.isTargetToShow(t.id);
+        });
+    };
+    ChartInternal.prototype.mapTargetsToUniqueXs = function (targets) {
+        var $$ = this;
+        var xs = $$.d3.set($$.d3.merge(targets.map(function (t) {
+            return t.values.map(function (v) {
+                return +v.x;
+            });
+        }))).values();
+        xs = $$.isTimeSeries() ? xs.map(function (x) {
+            return new Date(+x);
+        }) : xs.map(function (x) {
+            return +x;
+        });
+        return xs.sort(function (a, b) {
+            return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
+        });
+    };
+    ChartInternal.prototype.addHiddenTargetIds = function (targetIds) {
+        targetIds = targetIds instanceof Array ? targetIds : new Array(targetIds);
+        for (var i = 0; i < targetIds.length; i++) {
+            if (this.hiddenTargetIds.indexOf(targetIds[i]) < 0) {
+                this.hiddenTargetIds = this.hiddenTargetIds.concat(targetIds[i]);
+            }
+        }
+    };
+    ChartInternal.prototype.removeHiddenTargetIds = function (targetIds) {
+        this.hiddenTargetIds = this.hiddenTargetIds.filter(function (id) {
+            return targetIds.indexOf(id) < 0;
+        });
+    };
+    ChartInternal.prototype.addHiddenLegendIds = function (targetIds) {
+        targetIds = targetIds instanceof Array ? targetIds : new Array(targetIds);
+        for (var i = 0; i < targetIds.length; i++) {
+            if (this.hiddenLegendIds.indexOf(targetIds[i]) < 0) {
+                this.hiddenLegendIds = this.hiddenLegendIds.concat(targetIds[i]);
+            }
+        }
+    };
+    ChartInternal.prototype.removeHiddenLegendIds = function (targetIds) {
+        this.hiddenLegendIds = this.hiddenLegendIds.filter(function (id) {
+            return targetIds.indexOf(id) < 0;
+        });
+    };
+    ChartInternal.prototype.getValuesAsIdKeyed = function (targets) {
+        var ys = {};
+        targets.forEach(function (t) {
+            ys[t.id] = [];
+            t.values.forEach(function (v) {
+                ys[t.id].push(v.value);
+            });
+        });
+        return ys;
+    };
+    ChartInternal.prototype.checkValueInTargets = function (targets, checker) {
+        var ids = Object.keys(targets),
+            i,
+            j,
+            values;
+        for (i = 0; i < ids.length; i++) {
+            values = targets[ids[i]].values;
+            for (j = 0; j < values.length; j++) {
+                if (checker(values[j].value)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    };
+    ChartInternal.prototype.hasNegativeValueInTargets = function (targets) {
+        return this.checkValueInTargets(targets, function (v) {
+            return v < 0;
+        });
+    };
+    ChartInternal.prototype.hasPositiveValueInTargets = function (targets) {
+        return this.checkValueInTargets(targets, function (v) {
+            return v > 0;
+        });
+    };
+    ChartInternal.prototype.isOrderDesc = function () {
+        var config = this.config;
+        return typeof config.data_order === 'string' && config.data_order.toLowerCase() === 'desc';
+    };
+    ChartInternal.prototype.isOrderAsc = function () {
+        var config = this.config;
+        return typeof config.data_order === 'string' && config.data_order.toLowerCase() === 'asc';
+    };
+    ChartInternal.prototype.getOrderFunction = function () {
+        var $$ = this,
+            config = $$.config,
+            orderAsc = $$.isOrderAsc(),
+            orderDesc = $$.isOrderDesc();
+        if (orderAsc || orderDesc) {
+            var reducer = function reducer(p, c) {
+                return p + Math.abs(c.value);
+            };
+            return function (t1, t2) {
+                var t1Sum = t1.values.reduce(reducer, 0),
+                    t2Sum = t2.values.reduce(reducer, 0);
+                return orderAsc ? t2Sum - t1Sum : t1Sum - t2Sum;
+            };
+        } else if (isFunction(config.data_order)) {
+            return config.data_order;
+        } else if (isArray(config.data_order)) {
+            var order = config.data_order;
+            return function (t1, t2) {
+                return order.indexOf(t1.id) - order.indexOf(t2.id);
+            };
+        }
+    };
+    ChartInternal.prototype.orderTargets = function (targets) {
+        var fct = this.getOrderFunction();
+        if (fct) {
+            targets.sort(fct);
+        }
+        return targets;
+    };
+    ChartInternal.prototype.filterByX = function (targets, x) {
+        return this.d3.merge(targets.map(function (t) {
+            return t.values;
+        })).filter(function (v) {
+            return v.x - x === 0;
+        });
+    };
+    ChartInternal.prototype.filterRemoveNull = function (data) {
+        return data.filter(function (d) {
+            return isValue(d.value);
+        });
+    };
+    ChartInternal.prototype.filterByXDomain = function (targets, xDomain) {
+        return targets.map(function (t) {
+            return {
+                id: t.id,
+                id_org: t.id_org,
+                values: t.values.filter(function (v) {
+                    return xDomain[0] <= v.x && v.x <= xDomain[1];
+                })
+            };
+        });
+    };
+    ChartInternal.prototype.hasDataLabel = function () {
+        var config = this.config;
+        if (typeof config.data_labels === 'boolean' && config.data_labels) {
+            return true;
+        } else if (_typeof(config.data_labels) === 'object' && notEmpty(config.data_labels)) {
+            return true;
+        }
+        return false;
+    };
+    ChartInternal.prototype.getDataLabelLength = function (min, max, key) {
+        var $$ = this,
+            lengths = [0, 0],
+            paddingCoef = 1.3;
+        $$.selectChart.select('svg').selectAll('.dummy').data([min, max]).enter().append('text').text(function (d) {
+            return $$.dataLabelFormat(d.id)(d);
+        }).each(function (d, i) {
+            lengths[i] = this.getBoundingClientRect()[key] * paddingCoef;
+        }).remove();
+        return lengths;
+    };
+    ChartInternal.prototype.isNoneArc = function (d) {
+        return this.hasTarget(this.data.targets, d.id);
+    }, ChartInternal.prototype.isArc = function (d) {
+        return 'data' in d && this.hasTarget(this.data.targets, d.data.id);
+    };
+    ChartInternal.prototype.findClosestFromTargets = function (targets, pos) {
+        var $$ = this,
+            candidates;
+
+        // map to array of closest points of each target
+        candidates = targets.map(function (target) {
+            return $$.findClosest(target.values, pos);
+        });
+
+        // decide closest point and return
+        return $$.findClosest(candidates, pos);
+    };
+    ChartInternal.prototype.findClosest = function (values, pos) {
+        var $$ = this,
+            minDist = $$.config.point_sensitivity,
+            closest;
+
+        // find mouseovering bar
+        values.filter(function (v) {
+            return v && $$.isBarType(v.id);
+        }).forEach(function (v) {
+            var shape = $$.main.select('.' + CLASS.bars + $$.getTargetSelectorSuffix(v.id) + ' .' + CLASS.bar + '-' + v.index).node();
+            if (!closest && $$.isWithinBar($$.d3.mouse(shape), shape)) {
+                closest = v;
+            }
+        });
+
+        // find closest point from non-bar
+        values.filter(function (v) {
+            return v && !$$.isBarType(v.id);
+        }).forEach(function (v) {
+            var d = $$.dist(v, pos);
+            if (d < minDist) {
+                minDist = d;
+                closest = v;
+            }
+        });
+
+        return closest;
+    };
+    ChartInternal.prototype.dist = function (data, pos) {
+        var $$ = this,
+            config = $$.config,
+            xIndex = config.axis_rotated ? 1 : 0,
+            yIndex = config.axis_rotated ? 0 : 1,
+            y = $$.circleY(data, data.index),
+            x = $$.x(data.x);
+        return Math.sqrt(Math.pow(x - pos[xIndex], 2) + Math.pow(y - pos[yIndex], 2));
+    };
+    ChartInternal.prototype.convertValuesToStep = function (values) {
+        var converted = [].concat(values),
+            i;
+
+        if (!this.isCategorized()) {
+            return values;
+        }
+
+        for (i = values.length + 1; 0 < i; i--) {
+            converted[i] = converted[i - 1];
+        }
+
+        converted[0] = {
+            x: converted[0].x - 1,
+            value: converted[0].value,
+            id: converted[0].id
+        };
+        converted[values.length + 1] = {
+            x: converted[values.length].x + 1,
+            value: converted[values.length].value,
+            id: converted[values.length].id
+        };
+
+        return converted;
+    };
+    ChartInternal.prototype.updateDataAttributes = function (name, attrs) {
+        var $$ = this,
+            config = $$.config,
+            current = config['data_' + name];
+        if (typeof attrs === 'undefined') {
+            return current;
+        }
+        Object.keys(attrs).forEach(function (id) {
+            current[id] = attrs[id];
+        });
+        $$.redraw({
+            withLegend: true
+        });
+        return current;
+    };
+
+    ChartInternal.prototype.load = function (targets, args) {
+        var $$ = this;
+        if (targets) {
+            // filter loading targets if needed
+            if (args.filter) {
+                targets = targets.filter(args.filter);
+            }
+            // set type if args.types || args.type specified
+            if (args.type || args.types) {
+                targets.forEach(function (t) {
+                    var type = args.types && args.types[t.id] ? args.types[t.id] : args.type;
+                    $$.setTargetType(t.id, type);
+                });
+            }
+            // Update/Add data
+            $$.data.targets.forEach(function (d) {
+                for (var i = 0; i < targets.length; i++) {
+                    if (d.id === targets[i].id) {
+                        d.values = targets[i].values;
+                        targets.splice(i, 1);
+                        break;
+                    }
+                }
+            });
+            $$.data.targets = $$.data.targets.concat(targets); // add remained
+        }
+
+        // Set targets
+        $$.updateTargets($$.data.targets);
+
+        // Redraw with new targets
+        $$.redraw({ withUpdateOrgXDomain: true, withUpdateXDomain: true, withLegend: true });
+
+        if (args.done) {
+            args.done();
+        }
+    };
+    ChartInternal.prototype.loadFromArgs = function (args) {
+        var $$ = this;
+        if (args.data) {
+            $$.load($$.convertDataToTargets(args.data), args);
+        } else if (args.url) {
+            $$.convertUrlToData(args.url, args.mimeType, args.headers, args.keys, function (data) {
+                $$.load($$.convertDataToTargets(data), args);
+            });
+        } else if (args.json) {
+            $$.load($$.convertDataToTargets($$.convertJsonToData(args.json, args.keys)), args);
+        } else if (args.rows) {
+            $$.load($$.convertDataToTargets($$.convertRowsToData(args.rows)), args);
+        } else if (args.columns) {
+            $$.load($$.convertDataToTargets($$.convertColumnsToData(args.columns)), args);
+        } else {
+            $$.load(null, args);
+        }
+    };
+    ChartInternal.prototype.unload = function (targetIds, done) {
+        var $$ = this;
+        if (!done) {
+            done = function done() {};
+        }
+        // filter existing target
+        targetIds = targetIds.filter(function (id) {
+            return $$.hasTarget($$.data.targets, id);
+        });
+        // If no target, call done and return
+        if (!targetIds || targetIds.length === 0) {
+            done();
+            return;
+        }
+        $$.svg.selectAll(targetIds.map(function (id) {
+            return $$.selectorTarget(id);
+        })).transition().style('opacity', 0).remove().call($$.endall, done);
+        targetIds.forEach(function (id) {
+            // Reset fadein for future load
+            $$.withoutFadeIn[id] = false;
+            // Remove target's elements
+            if ($$.legend) {
+                $$.legend.selectAll('.' + CLASS.legendItem + $$.getTargetSelectorSuffix(id)).remove();
+            }
+            // Remove target
+            $$.data.targets = $$.data.targets.filter(function (t) {
+                return t.id !== id;
+            });
+        });
+    };
+
+    ChartInternal.prototype.getYDomainMin = function (targets) {
+        var $$ = this,
+            config = $$.config,
+            ids = $$.mapToIds(targets),
+            ys = $$.getValuesAsIdKeyed(targets),
+            j,
+            k,
+            baseId,
+            idsInGroup,
+            id,
+            hasNegativeValue;
+        if (config.data_groups.length > 0) {
+            hasNegativeValue = $$.hasNegativeValueInTargets(targets);
+            for (j = 0; j < config.data_groups.length; j++) {
+                // Determine baseId
+                idsInGroup = config.data_groups[j].filter(function (id) {
+                    return ids.indexOf(id) >= 0;
+                });
+                if (idsInGroup.length === 0) {
+                    continue;
+                }
+                baseId = idsInGroup[0];
+                // Consider negative values
+                if (hasNegativeValue && ys[baseId]) {
+                    ys[baseId].forEach(function (v, i) {
+                        ys[baseId][i] = v < 0 ? v : 0;
+                    });
+                }
+                // Compute min
+                for (k = 1; k < idsInGroup.length; k++) {
+                    id = idsInGroup[k];
+                    if (!ys[id]) {
+                        continue;
+                    }
+                    ys[id].forEach(function (v, i) {
+                        if ($$.axis.getId(id) === $$.axis.getId(baseId) && ys[baseId] && !(hasNegativeValue && +v > 0)) {
+                            ys[baseId][i] += +v;
+                        }
+                    });
+                }
+            }
+        }
+        return $$.d3.min(Object.keys(ys).map(function (key) {
+            return $$.d3.min(ys[key]);
+        }));
+    };
+    ChartInternal.prototype.getYDomainMax = function (targets) {
+        var $$ = this,
+            config = $$.config,
+            ids = $$.mapToIds(targets),
+            ys = $$.getValuesAsIdKeyed(targets),
+            j,
+            k,
+            baseId,
+            idsInGroup,
+            id,
+            hasPositiveValue;
+        if (config.data_groups.length > 0) {
+            hasPositiveValue = $$.hasPositiveValueInTargets(targets);
+            for (j = 0; j < config.data_groups.length; j++) {
+                // Determine baseId
+                idsInGroup = config.data_groups[j].filter(function (id) {
+                    return ids.indexOf(id) >= 0;
+                });
+                if (idsInGroup.length === 0) {
+                    continue;
+                }
+                baseId = idsInGroup[0];
+                // Consider positive values
+                if (hasPositiveValue && ys[baseId]) {
+                    ys[baseId].forEach(function (v, i) {
+                        ys[baseId][i] = v > 0 ? v : 0;
+                    });
+                }
+                // Compute max
+                for (k = 1; k < idsInGroup.length; k++) {
+                    id = idsInGroup[k];
+                    if (!ys[id]) {
+                        continue;
+                    }
+                    ys[id].forEach(function (v, i) {
+                        if ($$.axis.getId(id) === $$.axis.getId(baseId) && ys[baseId] && !(hasPositiveValue && +v < 0)) {
+                            ys[baseId][i] += +v;
+                        }
+                    });
+                }
+            }
+        }
+        return $$.d3.max(Object.keys(ys).map(function (key) {
+            return $$.d3.max(ys[key]);
+        }));
+    };
+    ChartInternal.prototype.getYDomain = function (targets, axisId, xDomain) {
+        var $$ = this,
+            config = $$.config,
+            targetsByAxisId = targets.filter(function (t) {
+            return $$.axis.getId(t.id) === axisId;
+        }),
+            yTargets = xDomain ? $$.filterByXDomain(targetsByAxisId, xDomain) : targetsByAxisId,
+            yMin = axisId === 'y2' ? config.axis_y2_min : config.axis_y_min,
+            yMax = axisId === 'y2' ? config.axis_y2_max : config.axis_y_max,
+            yDomainMin = $$.getYDomainMin(yTargets),
+            yDomainMax = $$.getYDomainMax(yTargets),
+            domain,
+            domainLength,
+            padding,
+            padding_top,
+            padding_bottom,
+            center = axisId === 'y2' ? config.axis_y2_center : config.axis_y_center,
+            yDomainAbs,
+            lengths,
+            diff,
+            ratio,
+            isAllPositive,
+            isAllNegative,
+            isZeroBased = $$.hasType('bar', yTargets) && config.bar_zerobased || $$.hasType('area', yTargets) && config.area_zerobased,
+            isInverted = axisId === 'y2' ? config.axis_y2_inverted : config.axis_y_inverted,
+            showHorizontalDataLabel = $$.hasDataLabel() && config.axis_rotated,
+            showVerticalDataLabel = $$.hasDataLabel() && !config.axis_rotated;
+
+        // MEMO: avoid inverting domain unexpectedly
+        yDomainMin = isValue(yMin) ? yMin : isValue(yMax) ? yDomainMin < yMax ? yDomainMin : yMax - 10 : yDomainMin;
+        yDomainMax = isValue(yMax) ? yMax : isValue(yMin) ? yMin < yDomainMax ? yDomainMax : yMin + 10 : yDomainMax;
+
+        if (yTargets.length === 0) {
+            // use current domain if target of axisId is none
+            return axisId === 'y2' ? $$.y2.domain() : $$.y.domain();
+        }
+        if (isNaN(yDomainMin)) {
+            // set minimum to zero when not number
+            yDomainMin = 0;
+        }
+        if (isNaN(yDomainMax)) {
+            // set maximum to have same value as yDomainMin
+            yDomainMax = yDomainMin;
+        }
+        if (yDomainMin === yDomainMax) {
+            yDomainMin < 0 ? yDomainMax = 0 : yDomainMin = 0;
+        }
+        isAllPositive = yDomainMin >= 0 && yDomainMax >= 0;
+        isAllNegative = yDomainMin <= 0 && yDomainMax <= 0;
+
+        // Cancel zerobased if axis_*_min / axis_*_max specified
+        if (isValue(yMin) && isAllPositive || isValue(yMax) && isAllNegative) {
+            isZeroBased = false;
+        }
+
+        // Bar/Area chart should be 0-based if all positive|negative
+        if (isZeroBased) {
+            if (isAllPositive) {
+                yDomainMin = 0;
+            }
+            if (isAllNegative) {
+                yDomainMax = 0;
+            }
+        }
+
+        domainLength = Math.abs(yDomainMax - yDomainMin);
+        padding = padding_top = padding_bottom = domainLength * 0.1;
+
+        if (typeof center !== 'undefined') {
+            yDomainAbs = Math.max(Math.abs(yDomainMin), Math.abs(yDomainMax));
+            yDomainMax = center + yDomainAbs;
+            yDomainMin = center - yDomainAbs;
+        }
+        // add padding for data label
+        if (showHorizontalDataLabel) {
+            lengths = $$.getDataLabelLength(yDomainMin, yDomainMax, 'width');
+            diff = diffDomain($$.y.range());
+            ratio = [lengths[0] / diff, lengths[1] / diff];
+            padding_top += domainLength * (ratio[1] / (1 - ratio[0] - ratio[1]));
+            padding_bottom += domainLength * (ratio[0] / (1 - ratio[0] - ratio[1]));
+        } else if (showVerticalDataLabel) {
+            lengths = $$.getDataLabelLength(yDomainMin, yDomainMax, 'height');
+            padding_top += $$.axis.convertPixelsToAxisPadding(lengths[1], domainLength);
+            padding_bottom += $$.axis.convertPixelsToAxisPadding(lengths[0], domainLength);
+        }
+        if (axisId === 'y' && notEmpty(config.axis_y_padding)) {
+            padding_top = $$.axis.getPadding(config.axis_y_padding, 'top', padding_top, domainLength);
+            padding_bottom = $$.axis.getPadding(config.axis_y_padding, 'bottom', padding_bottom, domainLength);
+        }
+        if (axisId === 'y2' && notEmpty(config.axis_y2_padding)) {
+            padding_top = $$.axis.getPadding(config.axis_y2_padding, 'top', padding_top, domainLength);
+            padding_bottom = $$.axis.getPadding(config.axis_y2_padding, 'bottom', padding_bottom, domainLength);
+        }
+        // Bar/Area chart should be 0-based if all positive|negative
+        if (isZeroBased) {
+            if (isAllPositive) {
+                padding_bottom = yDomainMin;
+            }
+            if (isAllNegative) {
+                padding_top = -yDomainMax;
+            }
+        }
+        domain = [yDomainMin - padding_bottom, yDomainMax + padding_top];
+        return isInverted ? domain.reverse() : domain;
+    };
+    ChartInternal.prototype.getXDomainMin = function (targets) {
+        var $$ = this,
+            config = $$.config;
+        return isDefined(config.axis_x_min) ? $$.isTimeSeries() ? this.parseDate(config.axis_x_min) : config.axis_x_min : $$.d3.min(targets, function (t) {
+            return $$.d3.min(t.values, function (v) {
+                return v.x;
+            });
+        });
+    };
+    ChartInternal.prototype.getXDomainMax = function (targets) {
+        var $$ = this,
+            config = $$.config;
+        return isDefined(config.axis_x_max) ? $$.isTimeSeries() ? this.parseDate(config.axis_x_max) : config.axis_x_max : $$.d3.max(targets, function (t) {
+            return $$.d3.max(t.values, function (v) {
+                return v.x;
+            });
+        });
+    };
+    ChartInternal.prototype.getXDomainPadding = function (domain) {
+        var $$ = this,
+            config = $$.config,
+            diff = domain[1] - domain[0],
+            maxDataCount,
+            padding,
+            paddingLeft,
+            paddingRight;
+        if ($$.isCategorized()) {
+            padding = 0;
+        } else if ($$.hasType('bar')) {
+            maxDataCount = $$.getMaxDataCount();
+            padding = maxDataCount > 1 ? diff / (maxDataCount - 1) / 2 : 0.5;
+        } else {
+            padding = diff * 0.01;
+        }
+        if (_typeof(config.axis_x_padding) === 'object' && notEmpty(config.axis_x_padding)) {
+            paddingLeft = isValue(config.axis_x_padding.left) ? config.axis_x_padding.left : padding;
+            paddingRight = isValue(config.axis_x_padding.right) ? config.axis_x_padding.right : padding;
+        } else if (typeof config.axis_x_padding === 'number') {
+            paddingLeft = paddingRight = config.axis_x_padding;
+        } else {
+            paddingLeft = paddingRight = padding;
+        }
+        return { left: paddingLeft, right: paddingRight };
+    };
+    ChartInternal.prototype.getXDomain = function (targets) {
+        var $$ = this,
+            xDomain = [$$.getXDomainMin(targets), $$.getXDomainMax(targets)],
+            firstX = xDomain[0],
+            lastX = xDomain[1],
+            padding = $$.getXDomainPadding(xDomain),
+            min = 0,
+            max = 0;
+        // show center of x domain if min and max are the same
+        if (firstX - lastX === 0 && !$$.isCategorized()) {
+            if ($$.isTimeSeries()) {
+                firstX = new Date(firstX.getTime() * 0.5);
+                lastX = new Date(lastX.getTime() * 1.5);
+            } else {
+                firstX = firstX === 0 ? 1 : firstX * 0.5;
+                lastX = lastX === 0 ? -1 : lastX * 1.5;
+            }
+        }
+        if (firstX || firstX === 0) {
+            min = $$.isTimeSeries() ? new Date(firstX.getTime() - padding.left) : firstX - padding.left;
+        }
+        if (lastX || lastX === 0) {
+            max = $$.isTimeSeries() ? new Date(lastX.getTime() + padding.right) : lastX + padding.right;
+        }
+        return [min, max];
+    };
+    ChartInternal.prototype.updateXDomain = function (targets, withUpdateXDomain, withUpdateOrgXDomain, withTrim, domain) {
+        var $$ = this,
+            config = $$.config;
+
+        if (withUpdateOrgXDomain) {
+            $$.x.domain(domain ? domain : $$.d3.extent($$.getXDomain(targets)));
+            $$.orgXDomain = $$.x.domain();
+            if (config.zoom_enabled) {
+                $$.zoom.update();
+            }
+            $$.subX.domain($$.x.domain());
+            if ($$.brush) {
+                $$.brush.updateScale($$.subX);
+            }
+        }
+        if (withUpdateXDomain) {
+            $$.x.domain(domain ? domain : !$$.brush || $$.brush.empty() ? $$.orgXDomain : $$.brush.selectionAsValue());
+        }
+
+        // Trim domain when too big by zoom mousemove event
+        if (withTrim) {
+            $$.x.domain($$.trimXDomain($$.x.orgDomain()));
+        }
+
+        return $$.x.domain();
+    };
+    ChartInternal.prototype.trimXDomain = function (domain) {
+        var zoomDomain = this.getZoomDomain(),
+            min = zoomDomain[0],
+            max = zoomDomain[1];
+        if (domain[0] <= min) {
+            domain[1] = +domain[1] + (min - domain[0]);
+            domain[0] = min;
+        }
+        if (max <= domain[1]) {
+            domain[0] = +domain[0] - (domain[1] - max);
+            domain[1] = max;
+        }
+        return domain;
+    };
+
+    ChartInternal.prototype.drag = function (mouse) {
+        var $$ = this,
+            config = $$.config,
+            main = $$.main,
+            d3 = $$.d3;
+        var sx, sy, mx, my, minX, maxX, minY, maxY;
+
+        if ($$.hasArcType()) {
+            return;
+        }
+        if (!config.data_selection_enabled) {
+            return;
+        } // do nothing if not selectable
+        if (!config.data_selection_multiple) {
+            return;
+        } // skip when single selection because drag is used for multiple selection
+
+        sx = $$.dragStart[0];
+        sy = $$.dragStart[1];
+        mx = mouse[0];
+        my = mouse[1];
+        minX = Math.min(sx, mx);
+        maxX = Math.max(sx, mx);
+        minY = config.data_selection_grouped ? $$.margin.top : Math.min(sy, my);
+        maxY = config.data_selection_grouped ? $$.height : Math.max(sy, my);
+
+        main.select('.' + CLASS.dragarea).attr('x', minX).attr('y', minY).attr('width', maxX - minX).attr('height', maxY - minY);
+        // TODO: binary search when multiple xs
+        main.selectAll('.' + CLASS.shapes).selectAll('.' + CLASS.shape).filter(function (d) {
+            return config.data_selection_isselectable(d);
+        }).each(function (d, i) {
+            var shape = d3.select(this),
+                isSelected = shape.classed(CLASS.SELECTED),
+                isIncluded = shape.classed(CLASS.INCLUDED),
+                _x,
+                _y,
+                _w,
+                _h,
+                toggle,
+                isWithin = false,
+                box;
+            if (shape.classed(CLASS.circle)) {
+                _x = shape.attr("cx") * 1;
+                _y = shape.attr("cy") * 1;
+                toggle = $$.togglePoint;
+                isWithin = minX < _x && _x < maxX && minY < _y && _y < maxY;
+            } else if (shape.classed(CLASS.bar)) {
+                box = getPathBox(this);
+                _x = box.x;
+                _y = box.y;
+                _w = box.width;
+                _h = box.height;
+                toggle = $$.togglePath;
+                isWithin = !(maxX < _x || _x + _w < minX) && !(maxY < _y || _y + _h < minY);
+            } else {
+                // line/area selection not supported yet
+                return;
+            }
+            if (isWithin ^ isIncluded) {
+                shape.classed(CLASS.INCLUDED, !isIncluded);
+                // TODO: included/unincluded callback here
+                shape.classed(CLASS.SELECTED, !isSelected);
+                toggle.call($$, !isSelected, shape, d, i);
+            }
+        });
+    };
+
+    ChartInternal.prototype.dragstart = function (mouse) {
+        var $$ = this,
+            config = $$.config;
+        if ($$.hasArcType()) {
+            return;
+        }
+        if (!config.data_selection_enabled) {
+            return;
+        } // do nothing if not selectable
+        $$.dragStart = mouse;
+        $$.main.select('.' + CLASS.chart).append('rect').attr('class', CLASS.dragarea).style('opacity', 0.1);
+        $$.dragging = true;
+    };
+
+    ChartInternal.prototype.dragend = function () {
+        var $$ = this,
+            config = $$.config;
+        if ($$.hasArcType()) {
+            return;
+        }
+        if (!config.data_selection_enabled) {
+            return;
+        } // do nothing if not selectable
+        $$.main.select('.' + CLASS.dragarea).transition().duration(100).style('opacity', 0).remove();
+        $$.main.selectAll('.' + CLASS.shape).classed(CLASS.INCLUDED, false);
+        $$.dragging = false;
+    };
+
+    ChartInternal.prototype.getYFormat = function (forArc) {
+        var $$ = this,
+            formatForY = forArc && !$$.hasType('gauge') ? $$.defaultArcValueFormat : $$.yFormat,
+            formatForY2 = forArc && !$$.hasType('gauge') ? $$.defaultArcValueFormat : $$.y2Format;
+        return function (v, ratio, id) {
+            var format = $$.axis.getId(id) === 'y2' ? formatForY2 : formatForY;
+            return format.call($$, v, ratio);
+        };
+    };
+    ChartInternal.prototype.yFormat = function (v) {
+        var $$ = this,
+            config = $$.config,
+            format = config.axis_y_tick_format ? config.axis_y_tick_format : $$.defaultValueFormat;
+        return format(v);
+    };
+    ChartInternal.prototype.y2Format = function (v) {
+        var $$ = this,
+            config = $$.config,
+            format = config.axis_y2_tick_format ? config.axis_y2_tick_format : $$.defaultValueFormat;
+        return format(v);
+    };
+    ChartInternal.prototype.defaultValueFormat = function (v) {
+        return isValue(v) ? +v : "";
+    };
+    ChartInternal.prototype.defaultArcValueFormat = function (v, ratio) {
+        return (ratio * 100).toFixed(1) + '%';
+    };
+    ChartInternal.prototype.dataLabelFormat = function (targetId) {
+        var $$ = this,
+            data_labels = $$.config.data_labels,
+            format,
+            defaultFormat = function defaultFormat(v) {
+            return isValue(v) ? +v : "";
+        };
+        // find format according to axis id
+        if (typeof data_labels.format === 'function') {
+            format = data_labels.format;
+        } else if (_typeof(data_labels.format) === 'object') {
+            if (data_labels.format[targetId]) {
+                format = data_labels.format[targetId] === true ? defaultFormat : data_labels.format[targetId];
+            } else {
+                format = function format() {
+                    return '';
+                };
+            }
+        } else {
+            format = defaultFormat;
+        }
+        return format;
+    };
+
+    ChartInternal.prototype.initGrid = function () {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3;
+        $$.grid = $$.main.append('g').attr("clip-path", $$.clipPathForGrid).attr('class', CLASS.grid);
+        if (config.grid_x_show) {
+            $$.grid.append("g").attr("class", CLASS.xgrids);
+        }
+        if (config.grid_y_show) {
+            $$.grid.append('g').attr('class', CLASS.ygrids);
+        }
+        if (config.grid_focus_show) {
+            $$.grid.append('g').attr("class", CLASS.xgridFocus).append('line').attr('class', CLASS.xgridFocus);
+        }
+        $$.xgrid = d3.selectAll([]);
+        if (!config.grid_lines_front) {
+            $$.initGridLines();
+        }
+    };
+    ChartInternal.prototype.initGridLines = function () {
+        var $$ = this,
+            d3 = $$.d3;
+        $$.gridLines = $$.main.append('g').attr("clip-path", $$.clipPathForGrid).attr('class', CLASS.grid + ' ' + CLASS.gridLines);
+        $$.gridLines.append('g').attr("class", CLASS.xgridLines);
+        $$.gridLines.append('g').attr('class', CLASS.ygridLines);
+        $$.xgridLines = d3.selectAll([]);
+    };
+    ChartInternal.prototype.updateXGrid = function (withoutUpdate) {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3,
+            xgridData = $$.generateGridData(config.grid_x_type, $$.x),
+            tickOffset = $$.isCategorized() ? $$.xAxis.tickOffset() : 0;
+
+        $$.xgridAttr = config.axis_rotated ? {
+            'x1': 0,
+            'x2': $$.width,
+            'y1': function y1(d) {
+                return $$.x(d) - tickOffset;
+            },
+            'y2': function y2(d) {
+                return $$.x(d) - tickOffset;
+            }
+        } : {
+            'x1': function x1(d) {
+                return $$.x(d) + tickOffset;
+            },
+            'x2': function x2(d) {
+                return $$.x(d) + tickOffset;
+            },
+            'y1': 0,
+            'y2': $$.height
+        };
+        $$.xgridAttr.opacity = function () {
+            var pos = +d3.select(this).attr(config.axis_rotated ? 'y1' : 'x1');
+            return pos === (config.axis_rotated ? $$.height : 0) ? 0 : 1;
+        };
+
+        var xgrid = $$.main.select('.' + CLASS.xgrids).selectAll('.' + CLASS.xgrid).data(xgridData);
+        var xgridEnter = xgrid.enter().append('line').attr("class", CLASS.xgrid).attr('x1', $$.xgridAttr.x1).attr('x2', $$.xgridAttr.x2).attr('y1', $$.xgridAttr.y1).attr('y2', $$.xgridAttr.y2).style("opacity", 0);
+        $$.xgrid = xgridEnter.merge(xgrid);
+        if (!withoutUpdate) {
+            $$.xgrid.attr('x1', $$.xgridAttr.x1).attr('x2', $$.xgridAttr.x2).attr('y1', $$.xgridAttr.y1).attr('y2', $$.xgridAttr.y2).style("opacity", $$.xgridAttr.opacity);
+        }
+        xgrid.exit().remove();
+    };
+
+    ChartInternal.prototype.updateYGrid = function () {
+        var $$ = this,
+            config = $$.config,
+            gridValues = $$.yAxis.tickValues() || $$.y.ticks(config.grid_y_ticks);
+        var ygrid = $$.main.select('.' + CLASS.ygrids).selectAll('.' + CLASS.ygrid).data(gridValues);
+        var ygridEnter = ygrid.enter().append('line')
+        // TODO: x1, x2, y1, y2, opacity need to be set here maybe
+        .attr('class', CLASS.ygrid);
+        $$.ygrid = ygridEnter.merge(ygrid);
+        $$.ygrid.attr("x1", config.axis_rotated ? $$.y : 0).attr("x2", config.axis_rotated ? $$.y : $$.width).attr("y1", config.axis_rotated ? 0 : $$.y).attr("y2", config.axis_rotated ? $$.height : $$.y);
+        ygrid.exit().remove();
+        $$.smoothLines($$.ygrid, 'grid');
+    };
+
+    ChartInternal.prototype.gridTextAnchor = function (d) {
+        return d.position ? d.position : "end";
+    };
+    ChartInternal.prototype.gridTextDx = function (d) {
+        return d.position === 'start' ? 4 : d.position === 'middle' ? 0 : -4;
+    };
+    ChartInternal.prototype.xGridTextX = function (d) {
+        return d.position === 'start' ? -this.height : d.position === 'middle' ? -this.height / 2 : 0;
+    };
+    ChartInternal.prototype.yGridTextX = function (d) {
+        return d.position === 'start' ? 0 : d.position === 'middle' ? this.width / 2 : this.width;
+    };
+    ChartInternal.prototype.updateGrid = function (duration) {
+        var $$ = this,
+            main = $$.main,
+            config = $$.config,
+            xgridLine,
+            xgridLineEnter,
+            ygridLine,
+            ygridLineEnter,
+            xv = $$.xv.bind($$),
+            yv = $$.yv.bind($$),
+            xGridTextX = $$.xGridTextX.bind($$),
+            yGridTextX = $$.yGridTextX.bind($$);
+
+        // hide if arc type
+        $$.grid.style('visibility', $$.hasArcType() ? 'hidden' : 'visible');
+
+        main.select('line.' + CLASS.xgridFocus).style("visibility", "hidden");
+        if (config.grid_x_show) {
+            $$.updateXGrid();
+        }
+        xgridLine = main.select('.' + CLASS.xgridLines).selectAll('.' + CLASS.xgridLine).data(config.grid_x_lines);
+        // enter
+        xgridLineEnter = xgridLine.enter().append('g').attr("class", function (d) {
+            return CLASS.xgridLine + (d['class'] ? ' ' + d['class'] : '');
+        });
+        xgridLineEnter.append('line').attr("x1", config.axis_rotated ? 0 : xv).attr("x2", config.axis_rotated ? $$.width : xv).attr("y1", config.axis_rotated ? xv : 0).attr("y2", config.axis_rotated ? xv : $$.height).style("opacity", 0);
+        xgridLineEnter.append('text').attr("text-anchor", $$.gridTextAnchor).attr("transform", config.axis_rotated ? "" : "rotate(-90)").attr("x", config.axis_rotated ? yGridTextX : xGridTextX).attr("y", xv).attr('dx', $$.gridTextDx).attr('dy', -5).style("opacity", 0);
+        // udpate
+        $$.xgridLines = xgridLineEnter.merge(xgridLine);
+        // done in d3.transition() of the end of this function
+        // exit
+        xgridLine.exit().transition().duration(duration).style("opacity", 0).remove();
+
+        // Y-Grid
+        if (config.grid_y_show) {
+            $$.updateYGrid();
+        }
+        ygridLine = main.select('.' + CLASS.ygridLines).selectAll('.' + CLASS.ygridLine).data(config.grid_y_lines);
+        // enter
+        ygridLineEnter = ygridLine.enter().append('g').attr("class", function (d) {
+            return CLASS.ygridLine + (d['class'] ? ' ' + d['class'] : '');
+        });
+        ygridLineEnter.append('line').attr("x1", config.axis_rotated ? yv : 0).attr("x2", config.axis_rotated ? yv : $$.width).attr("y1", config.axis_rotated ? 0 : yv).attr("y2", config.axis_rotated ? $$.height : yv).style("opacity", 0);
+        ygridLineEnter.append('text').attr("text-anchor", $$.gridTextAnchor).attr("transform", config.axis_rotated ? "rotate(-90)" : "").attr("x", config.axis_rotated ? xGridTextX : yGridTextX).attr("y", yv).attr('dx', $$.gridTextDx).attr('dy', -5).style("opacity", 0);
+        // update
+        $$.ygridLines = ygridLineEnter.merge(ygridLine);
+        $$.ygridLines.select('line').transition().duration(duration).attr("x1", config.axis_rotated ? yv : 0).attr("x2", config.axis_rotated ? yv : $$.width).attr("y1", config.axis_rotated ? 0 : yv).attr("y2", config.axis_rotated ? $$.height : yv).style("opacity", 1);
+        $$.ygridLines.select('text').transition().duration(duration).attr("x", config.axis_rotated ? $$.xGridTextX.bind($$) : $$.yGridTextX.bind($$)).attr("y", yv).text(function (d) {
+            return d.text;
+        }).style("opacity", 1);
+        // exit
+        ygridLine.exit().transition().duration(duration).style("opacity", 0).remove();
+    };
+    ChartInternal.prototype.redrawGrid = function (withTransition, transition) {
+        var $$ = this,
+            config = $$.config,
+            xv = $$.xv.bind($$),
+            lines = $$.xgridLines.select('line'),
+            texts = $$.xgridLines.select('text');
+        return [(withTransition ? lines.transition(transition) : lines).attr("x1", config.axis_rotated ? 0 : xv).attr("x2", config.axis_rotated ? $$.width : xv).attr("y1", config.axis_rotated ? xv : 0).attr("y2", config.axis_rotated ? xv : $$.height).style("opacity", 1), (withTransition ? texts.transition(transition) : texts).attr("x", config.axis_rotated ? $$.yGridTextX.bind($$) : $$.xGridTextX.bind($$)).attr("y", xv).text(function (d) {
+            return d.text;
+        }).style("opacity", 1)];
+    };
+    ChartInternal.prototype.showXGridFocus = function (selectedData) {
+        var $$ = this,
+            config = $$.config,
+            dataToShow = selectedData.filter(function (d) {
+            return d && isValue(d.value);
+        }),
+            focusEl = $$.main.selectAll('line.' + CLASS.xgridFocus),
+            xx = $$.xx.bind($$);
+        if (!config.tooltip_show) {
+            return;
+        }
+        // Hide when scatter plot exists
+        if ($$.hasType('scatter') || $$.hasArcType()) {
+            return;
+        }
+        focusEl.style("visibility", "visible").data([dataToShow[0]]).attr(config.axis_rotated ? 'y1' : 'x1', xx).attr(config.axis_rotated ? 'y2' : 'x2', xx);
+        $$.smoothLines(focusEl, 'grid');
+    };
+    ChartInternal.prototype.hideXGridFocus = function () {
+        this.main.select('line.' + CLASS.xgridFocus).style("visibility", "hidden");
+    };
+    ChartInternal.prototype.updateXgridFocus = function () {
+        var $$ = this,
+            config = $$.config;
+        $$.main.select('line.' + CLASS.xgridFocus).attr("x1", config.axis_rotated ? 0 : -10).attr("x2", config.axis_rotated ? $$.width : -10).attr("y1", config.axis_rotated ? -10 : 0).attr("y2", config.axis_rotated ? -10 : $$.height);
+    };
+    ChartInternal.prototype.generateGridData = function (type, scale) {
+        var $$ = this,
+            gridData = [],
+            xDomain,
+            firstYear,
+            lastYear,
+            i,
+            tickNum = $$.main.select("." + CLASS.axisX).selectAll('.tick').size();
+        if (type === 'year') {
+            xDomain = $$.getXDomain();
+            firstYear = xDomain[0].getFullYear();
+            lastYear = xDomain[1].getFullYear();
+            for (i = firstYear; i <= lastYear; i++) {
+                gridData.push(new Date(i + '-01-01 00:00:00'));
+            }
+        } else {
+            gridData = scale.ticks(10);
+            if (gridData.length > tickNum) {
+                // use only int
+                gridData = gridData.filter(function (d) {
+                    return ("" + d).indexOf('.') < 0;
+                });
+            }
+        }
+        return gridData;
+    };
+    ChartInternal.prototype.getGridFilterToRemove = function (params) {
+        return params ? function (line) {
+            var found = false;
+            [].concat(params).forEach(function (param) {
+                if ('value' in param && line.value === param.value || 'class' in param && line['class'] === param['class']) {
+                    found = true;
+                }
+            });
+            return found;
+        } : function () {
+            return true;
+        };
+    };
+    ChartInternal.prototype.removeGridLines = function (params, forX) {
+        var $$ = this,
+            config = $$.config,
+            toRemove = $$.getGridFilterToRemove(params),
+            toShow = function toShow(line) {
+            return !toRemove(line);
+        },
+            classLines = forX ? CLASS.xgridLines : CLASS.ygridLines,
+            classLine = forX ? CLASS.xgridLine : CLASS.ygridLine;
+        $$.main.select('.' + classLines).selectAll('.' + classLine).filter(toRemove).transition().duration(config.transition_duration).style('opacity', 0).remove();
+        if (forX) {
+            config.grid_x_lines = config.grid_x_lines.filter(toShow);
+        } else {
+            config.grid_y_lines = config.grid_y_lines.filter(toShow);
+        }
+    };
+
+    ChartInternal.prototype.initEventRect = function () {
+        var $$ = this,
+            config = $$.config;
+
+        $$.main.select('.' + CLASS.chart).append("g").attr("class", CLASS.eventRects).style('fill-opacity', 0);
+        $$.eventRect = $$.main.select('.' + CLASS.eventRects).append('rect').attr('class', CLASS.eventRect);
+
+        // event rect handle zoom event as well
+        if (config.zoom_enabled && $$.zoom) {
+            $$.eventRect.call($$.zoom).on("dblclick.zoom", null);
+            if (config.zoom_initialRange) {
+                // WORKAROUND: Add transition to apply transform immediately when no subchart
+                $$.eventRect.transition().duration(0).call($$.zoom.transform, $$.zoomTransform(config.zoom_initialRange));
+            }
+        }
+    };
+    ChartInternal.prototype.redrawEventRect = function () {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            x,
+            y,
+            w,
+            h;
+
+        // TODO: rotated not supported yet
+        x = 0;
+        y = 0;
+        w = $$.width;
+        h = $$.height;
+
+        function mouseout() {
+            $$.svg.select('.' + CLASS.eventRect).style('cursor', null);
+            $$.hideXGridFocus();
+            $$.hideTooltip();
+            $$.unexpandCircles();
+            $$.unexpandBars();
+        }
+
+        // rects for mouseover
+        $$.main.select('.' + CLASS.eventRects).style('cursor', config.zoom_enabled ? config.axis_rotated ? 'ns-resize' : 'ew-resize' : null);
+
+        $$.eventRect.attr('x', x).attr('y', y).attr('width', w).attr('height', h).on('mouseout', config.interaction_enabled ? function () {
+            if (!config) {
+                return;
+            } // chart is destroyed
+            if ($$.hasArcType()) {
+                return;
+            }
+            mouseout();
+        } : null).on('mousemove', config.interaction_enabled ? function () {
+            var targetsToShow, mouse, closest, sameXData, selectedData;
+
+            if ($$.dragging) {
+                return;
+            } // do nothing when dragging
+            if ($$.hasArcType(targetsToShow)) {
+                return;
+            }
+
+            targetsToShow = $$.filterTargetsToShow($$.data.targets);
+            mouse = d3.mouse(this);
+            closest = $$.findClosestFromTargets(targetsToShow, mouse);
+
+            if ($$.mouseover && (!closest || closest.id !== $$.mouseover.id)) {
+                config.data_onmouseout.call($$.api, $$.mouseover);
+                $$.mouseover = undefined;
+            }
+
+            if (!closest) {
+                mouseout();
+                return;
+            }
+
+            if ($$.isScatterType(closest) || !config.tooltip_grouped) {
+                sameXData = [closest];
+            } else {
+                sameXData = $$.filterByX(targetsToShow, closest.x);
+            }
+
+            // show tooltip when cursor is close to some point
+            selectedData = sameXData.map(function (d) {
+                return $$.addName(d);
+            });
+            $$.showTooltip(selectedData, this);
+
+            // expand points
+            if (config.point_focus_expand_enabled) {
+                $$.unexpandCircles();
+                selectedData.forEach(function (d) {
+                    $$.expandCircles(d.index, d.id, false);
+                });
+            }
+            $$.expandBars(closest.index, closest.id, true);
+
+            // Show xgrid focus line
+            $$.showXGridFocus(selectedData);
+
+            // Show cursor as pointer if point is close to mouse position
+            if ($$.isBarType(closest.id) || $$.dist(closest, mouse) < config.point_sensitivity) {
+                $$.svg.select('.' + CLASS.eventRect).style('cursor', 'pointer');
+                if (!$$.mouseover) {
+                    config.data_onmouseover.call($$.api, closest);
+                    $$.mouseover = closest;
+                }
+            }
+        } : null).on('click', config.interaction_enabled ? function () {
+            var targetsToShow, mouse, closest, sameXData;
+            if ($$.hasArcType(targetsToShow)) {
+                return;
+            }
+
+            targetsToShow = $$.filterTargetsToShow($$.data.targets);
+            mouse = d3.mouse(this);
+            closest = $$.findClosestFromTargets(targetsToShow, mouse);
+            if (!closest) {
+                return;
+            }
+            // select if selection enabled
+            if ($$.isBarType(closest.id) || $$.dist(closest, mouse) < config.point_sensitivity) {
+                if ($$.isScatterType(closest) || !config.data_selection_grouped) {
+                    sameXData = [closest];
+                } else {
+                    sameXData = $$.filterByX(targetsToShow, closest.x);
+                }
+                sameXData.forEach(function (d) {
+                    $$.main.selectAll('.' + CLASS.shapes + $$.getTargetSelectorSuffix(d.id)).selectAll('.' + CLASS.shape + '-' + d.index).each(function () {
+                        if (config.data_selection_grouped || $$.isWithinShape(this, d)) {
+                            $$.toggleShape(this, d, d.index);
+                            config.data_onclick.call($$.api, d, this);
+                        }
+                    });
+                });
+            }
+        } : null).call(config.interaction_enabled && config.data_selection_draggable && $$.drag ? d3.drag().on('drag', function () {
+            $$.drag(d3.mouse(this));
+        }).on('start', function () {
+            $$.dragstart(d3.mouse(this));
+        }).on('end', function () {
+            $$.dragend();
+        }) : function () {});
+    };
+    ChartInternal.prototype.getMousePosition = function (data) {
+        var $$ = this;
+        return [$$.x(data.x), $$.getYScale(data.id)(data.value)];
+    };
+    ChartInternal.prototype.dispatchEvent = function (type, mouse) {
+        var $$ = this,
+            selector = '.' + CLASS.eventRect,
+            eventRect = $$.main.select(selector).node(),
+            box = eventRect.getBoundingClientRect(),
+            x = box.left + (mouse ? mouse[0] : 0),
+            y = box.top + (mouse ? mouse[1] : 0),
+            event = document.createEvent("MouseEvents");
+
+        event.initMouseEvent(type, true, true, window, 0, x, y, x, y, false, false, false, false, 0, null);
+        eventRect.dispatchEvent(event);
+    };
+
+    ChartInternal.prototype.initLegend = function () {
+        var $$ = this;
+        $$.legendItemTextBox = {};
+        $$.legendHasRendered = false;
+        $$.legend = $$.svg.append("g").attr("transform", $$.getTranslate('legend'));
+        if (!$$.config.legend_show) {
+            $$.legend.style('visibility', 'hidden');
+            $$.hiddenLegendIds = $$.mapToIds($$.data.targets);
+            return;
+        }
+        // MEMO: call here to update legend box and tranlate for all
+        // MEMO: translate will be upated by this, so transform not needed in updateLegend()
+        $$.updateLegendWithDefaults();
+    };
+    ChartInternal.prototype.updateLegendWithDefaults = function () {
+        var $$ = this;
+        $$.updateLegend($$.mapToIds($$.data.targets), { withTransform: false, withTransitionForTransform: false, withTransition: false });
+    };
+    ChartInternal.prototype.updateSizeForLegend = function (legendHeight, legendWidth) {
+        var $$ = this,
+            config = $$.config,
+            insetLegendPosition = {
+            top: $$.isLegendTop ? $$.getCurrentPaddingTop() + config.legend_inset_y + 5.5 : $$.currentHeight - legendHeight - $$.getCurrentPaddingBottom() - config.legend_inset_y,
+            left: $$.isLegendLeft ? $$.getCurrentPaddingLeft() + config.legend_inset_x + 0.5 : $$.currentWidth - legendWidth - $$.getCurrentPaddingRight() - config.legend_inset_x + 0.5
+        };
+
+        $$.margin3 = {
+            top: $$.isLegendRight ? 0 : $$.isLegendInset ? insetLegendPosition.top : $$.currentHeight - legendHeight,
+            right: NaN,
+            bottom: 0,
+            left: $$.isLegendRight ? $$.currentWidth - legendWidth : $$.isLegendInset ? insetLegendPosition.left : 0
+        };
+    };
+    ChartInternal.prototype.transformLegend = function (withTransition) {
+        var $$ = this;
+        (withTransition ? $$.legend.transition() : $$.legend).attr("transform", $$.getTranslate('legend'));
+    };
+    ChartInternal.prototype.updateLegendStep = function (step) {
+        this.legendStep = step;
+    };
+    ChartInternal.prototype.updateLegendItemWidth = function (w) {
+        this.legendItemWidth = w;
+    };
+    ChartInternal.prototype.updateLegendItemHeight = function (h) {
+        this.legendItemHeight = h;
+    };
+    ChartInternal.prototype.getLegendWidth = function () {
+        var $$ = this;
+        return $$.config.legend_show ? $$.isLegendRight || $$.isLegendInset ? $$.legendItemWidth * ($$.legendStep + 1) : $$.currentWidth : 0;
+    };
+    ChartInternal.prototype.getLegendHeight = function () {
+        var $$ = this,
+            h = 0;
+        if ($$.config.legend_show) {
+            if ($$.isLegendRight) {
+                h = $$.currentHeight;
+            } else {
+                h = Math.max(20, $$.legendItemHeight) * ($$.legendStep + 1);
+            }
+        }
+        return h;
+    };
+    ChartInternal.prototype.opacityForLegend = function (legendItem) {
+        return legendItem.classed(CLASS.legendItemHidden) ? null : 1;
+    };
+    ChartInternal.prototype.opacityForUnfocusedLegend = function (legendItem) {
+        return legendItem.classed(CLASS.legendItemHidden) ? null : 0.3;
+    };
+    ChartInternal.prototype.toggleFocusLegend = function (targetIds, focus) {
+        var $$ = this;
+        targetIds = $$.mapToTargetIds(targetIds);
+        $$.legend.selectAll('.' + CLASS.legendItem).filter(function (id) {
+            return targetIds.indexOf(id) >= 0;
+        }).classed(CLASS.legendItemFocused, focus).transition().duration(100).style('opacity', function () {
+            var opacity = focus ? $$.opacityForLegend : $$.opacityForUnfocusedLegend;
+            return opacity.call($$, $$.d3.select(this));
+        });
+    };
+    ChartInternal.prototype.revertLegend = function () {
+        var $$ = this,
+            d3 = $$.d3;
+        $$.legend.selectAll('.' + CLASS.legendItem).classed(CLASS.legendItemFocused, false).transition().duration(100).style('opacity', function () {
+            return $$.opacityForLegend(d3.select(this));
+        });
+    };
+    ChartInternal.prototype.showLegend = function (targetIds) {
+        var $$ = this,
+            config = $$.config;
+        if (!config.legend_show) {
+            config.legend_show = true;
+            $$.legend.style('visibility', 'visible');
+            if (!$$.legendHasRendered) {
+                $$.updateLegendWithDefaults();
+            }
+        }
+        $$.removeHiddenLegendIds(targetIds);
+        $$.legend.selectAll($$.selectorLegends(targetIds)).style('visibility', 'visible').transition().style('opacity', function () {
+            return $$.opacityForLegend($$.d3.select(this));
+        });
+    };
+    ChartInternal.prototype.hideLegend = function (targetIds) {
+        var $$ = this,
+            config = $$.config;
+        if (config.legend_show && isEmpty(targetIds)) {
+            config.legend_show = false;
+            $$.legend.style('visibility', 'hidden');
+        }
+        $$.addHiddenLegendIds(targetIds);
+        $$.legend.selectAll($$.selectorLegends(targetIds)).style('opacity', 0).style('visibility', 'hidden');
+    };
+    ChartInternal.prototype.clearLegendItemTextBoxCache = function () {
+        this.legendItemTextBox = {};
+    };
+    ChartInternal.prototype.updateLegend = function (targetIds, options, transitions) {
+        var $$ = this,
+            config = $$.config;
+        var xForLegend, xForLegendText, xForLegendRect, yForLegend, yForLegendText, yForLegendRect, x1ForLegendTile, x2ForLegendTile, yForLegendTile;
+        var paddingTop = 4,
+            paddingRight = 10,
+            maxWidth = 0,
+            maxHeight = 0,
+            posMin = 10,
+            tileWidth = config.legend_item_tile_width + 5;
+        var l,
+            totalLength = 0,
+            offsets = {},
+            widths = {},
+            heights = {},
+            margins = [0],
+            steps = {},
+            step = 0;
+        var withTransition, withTransitionForTransform;
+        var texts, rects, tiles, background;
+
+        // Skip elements when their name is set to null
+        targetIds = targetIds.filter(function (id) {
+            return !isDefined(config.data_names[id]) || config.data_names[id] !== null;
+        });
+
+        options = options || {};
+        withTransition = getOption(options, "withTransition", true);
+        withTransitionForTransform = getOption(options, "withTransitionForTransform", true);
+
+        function getTextBox(textElement, id) {
+            if (!$$.legendItemTextBox[id]) {
+                $$.legendItemTextBox[id] = $$.getTextRect(textElement.textContent, CLASS.legendItem, textElement);
+            }
+            return $$.legendItemTextBox[id];
+        }
+
+        function updatePositions(textElement, id, index) {
+            var reset = index === 0,
+                isLast = index === targetIds.length - 1,
+                box = getTextBox(textElement, id),
+                itemWidth = box.width + tileWidth + (isLast && !($$.isLegendRight || $$.isLegendInset) ? 0 : paddingRight) + config.legend_padding,
+                itemHeight = box.height + paddingTop,
+                itemLength = $$.isLegendRight || $$.isLegendInset ? itemHeight : itemWidth,
+                areaLength = $$.isLegendRight || $$.isLegendInset ? $$.getLegendHeight() : $$.getLegendWidth(),
+                margin,
+                maxLength;
+
+            // MEMO: care about condifion of step, totalLength
+            function updateValues(id, withoutStep) {
+                if (!withoutStep) {
+                    margin = (areaLength - totalLength - itemLength) / 2;
+                    if (margin < posMin) {
+                        margin = (areaLength - itemLength) / 2;
+                        totalLength = 0;
+                        step++;
+                    }
+                }
+                steps[id] = step;
+                margins[step] = $$.isLegendInset ? 10 : margin;
+                offsets[id] = totalLength;
+                totalLength += itemLength;
+            }
+
+            if (reset) {
+                totalLength = 0;
+                step = 0;
+                maxWidth = 0;
+                maxHeight = 0;
+            }
+
+            if (config.legend_show && !$$.isLegendToShow(id)) {
+                widths[id] = heights[id] = steps[id] = offsets[id] = 0;
+                return;
+            }
+
+            widths[id] = itemWidth;
+            heights[id] = itemHeight;
+
+            if (!maxWidth || itemWidth >= maxWidth) {
+                maxWidth = itemWidth;
+            }
+            if (!maxHeight || itemHeight >= maxHeight) {
+                maxHeight = itemHeight;
+            }
+            maxLength = $$.isLegendRight || $$.isLegendInset ? maxHeight : maxWidth;
+
+            if (config.legend_equally) {
+                Object.keys(widths).forEach(function (id) {
+                    widths[id] = maxWidth;
+                });
+                Object.keys(heights).forEach(function (id) {
+                    heights[id] = maxHeight;
+                });
+                margin = (areaLength - maxLength * targetIds.length) / 2;
+                if (margin < posMin) {
+                    totalLength = 0;
+                    step = 0;
+                    targetIds.forEach(function (id) {
+                        updateValues(id);
+                    });
+                } else {
+                    updateValues(id, true);
+                }
+            } else {
+                updateValues(id);
+            }
+        }
+
+        if ($$.isLegendInset) {
+            step = config.legend_inset_step ? config.legend_inset_step : targetIds.length;
+            $$.updateLegendStep(step);
+        }
+
+        if ($$.isLegendRight) {
+            xForLegend = function xForLegend(id) {
+                return maxWidth * steps[id];
+            };
+            yForLegend = function yForLegend(id) {
+                return margins[steps[id]] + offsets[id];
+            };
+        } else if ($$.isLegendInset) {
+            xForLegend = function xForLegend(id) {
+                return maxWidth * steps[id] + 10;
+            };
+            yForLegend = function yForLegend(id) {
+                return margins[steps[id]] + offsets[id];
+            };
+        } else {
+            xForLegend = function xForLegend(id) {
+                return margins[steps[id]] + offsets[id];
+            };
+            yForLegend = function yForLegend(id) {
+                return maxHeight * steps[id];
+            };
+        }
+        xForLegendText = function xForLegendText(id, i) {
+            return xForLegend(id, i) + 4 + config.legend_item_tile_width;
+        };
+        yForLegendText = function yForLegendText(id, i) {
+            return yForLegend(id, i) + 9;
+        };
+        xForLegendRect = function xForLegendRect(id, i) {
+            return xForLegend(id, i);
+        };
+        yForLegendRect = function yForLegendRect(id, i) {
+            return yForLegend(id, i) - 5;
+        };
+        x1ForLegendTile = function x1ForLegendTile(id, i) {
+            return xForLegend(id, i) - 2;
+        };
+        x2ForLegendTile = function x2ForLegendTile(id, i) {
+            return xForLegend(id, i) - 2 + config.legend_item_tile_width;
+        };
+        yForLegendTile = function yForLegendTile(id, i) {
+            return yForLegend(id, i) + 4;
+        };
+
+        // Define g for legend area
+        l = $$.legend.selectAll('.' + CLASS.legendItem).data(targetIds).enter().append('g').attr('class', function (id) {
+            return $$.generateClass(CLASS.legendItem, id);
+        }).style('visibility', function (id) {
+            return $$.isLegendToShow(id) ? 'visible' : 'hidden';
+        }).style('cursor', 'pointer').on('click', function (id) {
+            if (config.legend_item_onclick) {
+                config.legend_item_onclick.call($$, id);
+            } else {
+                if ($$.d3.event.altKey) {
+                    $$.api.hide();
+                    $$.api.show(id);
+                } else {
+                    $$.api.toggle(id);
+                    $$.isTargetToShow(id) ? $$.api.focus(id) : $$.api.revert();
+                }
+            }
+        }).on('mouseover', function (id) {
+            if (config.legend_item_onmouseover) {
+                config.legend_item_onmouseover.call($$, id);
+            } else {
+                $$.d3.select(this).classed(CLASS.legendItemFocused, true);
+                if (!$$.transiting && $$.isTargetToShow(id)) {
+                    $$.api.focus(id);
+                }
+            }
+        }).on('mouseout', function (id) {
+            if (config.legend_item_onmouseout) {
+                config.legend_item_onmouseout.call($$, id);
+            } else {
+                $$.d3.select(this).classed(CLASS.legendItemFocused, false);
+                $$.api.revert();
+            }
+        });
+        l.append('text').text(function (id) {
+            return isDefined(config.data_names[id]) ? config.data_names[id] : id;
+        }).each(function (id, i) {
+            updatePositions(this, id, i);
+        }).style("pointer-events", "none").attr('x', $$.isLegendRight || $$.isLegendInset ? xForLegendText : -200).attr('y', $$.isLegendRight || $$.isLegendInset ? -200 : yForLegendText);
+        l.append('rect').attr("class", CLASS.legendItemEvent).style('fill-opacity', 0).attr('x', $$.isLegendRight || $$.isLegendInset ? xForLegendRect : -200).attr('y', $$.isLegendRight || $$.isLegendInset ? -200 : yForLegendRect);
+        l.append('line').attr('class', CLASS.legendItemTile).style('stroke', $$.color).style("pointer-events", "none").attr('x1', $$.isLegendRight || $$.isLegendInset ? x1ForLegendTile : -200).attr('y1', $$.isLegendRight || $$.isLegendInset ? -200 : yForLegendTile).attr('x2', $$.isLegendRight || $$.isLegendInset ? x2ForLegendTile : -200).attr('y2', $$.isLegendRight || $$.isLegendInset ? -200 : yForLegendTile).attr('stroke-width', config.legend_item_tile_height);
+
+        // Set background for inset legend
+        background = $$.legend.select('.' + CLASS.legendBackground + ' rect');
+        if ($$.isLegendInset && maxWidth > 0 && background.size() === 0) {
+            background = $$.legend.insert('g', '.' + CLASS.legendItem).attr("class", CLASS.legendBackground).append('rect');
+        }
+
+        texts = $$.legend.selectAll('text').data(targetIds).text(function (id) {
+            return isDefined(config.data_names[id]) ? config.data_names[id] : id;
+        }) // MEMO: needed for update
+        .each(function (id, i) {
+            updatePositions(this, id, i);
+        });
+        (withTransition ? texts.transition() : texts).attr('x', xForLegendText).attr('y', yForLegendText);
+
+        rects = $$.legend.selectAll('rect.' + CLASS.legendItemEvent).data(targetIds);
+        (withTransition ? rects.transition() : rects).attr('width', function (id) {
+            return widths[id];
+        }).attr('height', function (id) {
+            return heights[id];
+        }).attr('x', xForLegendRect).attr('y', yForLegendRect);
+
+        tiles = $$.legend.selectAll('line.' + CLASS.legendItemTile).data(targetIds);
+        (withTransition ? tiles.transition() : tiles).style('stroke', $$.levelColor ? function (id) {
+            return $$.levelColor($$.cache[id].values[0].value);
+        } : $$.color).attr('x1', x1ForLegendTile).attr('y1', yForLegendTile).attr('x2', x2ForLegendTile).attr('y2', yForLegendTile);
+
+        if (background) {
+            (withTransition ? background.transition() : background).attr('height', $$.getLegendHeight() - 12).attr('width', maxWidth * (step + 1) + 10);
+        }
+
+        // toggle legend state
+        $$.legend.selectAll('.' + CLASS.legendItem).classed(CLASS.legendItemHidden, function (id) {
+            return !$$.isTargetToShow(id);
+        });
+
+        // Update all to reflect change of legend
+        $$.updateLegendItemWidth(maxWidth);
+        $$.updateLegendItemHeight(maxHeight);
+        $$.updateLegendStep(step);
+        // Update size and scale
+        $$.updateSizes();
+        $$.updateScales();
+        $$.updateSvgSize();
+        // Update g positions
+        $$.transformAll(withTransitionForTransform, transitions);
+        $$.legendHasRendered = true;
+    };
+
+    ChartInternal.prototype.initRegion = function () {
+        var $$ = this;
+        $$.region = $$.main.append('g').attr("clip-path", $$.clipPath).attr("class", CLASS.regions);
+    };
+    ChartInternal.prototype.updateRegion = function (duration) {
+        var $$ = this,
+            config = $$.config;
+
+        // hide if arc type
+        $$.region.style('visibility', $$.hasArcType() ? 'hidden' : 'visible');
+
+        var mainRegion = $$.main.select('.' + CLASS.regions).selectAll('.' + CLASS.region).data(config.regions);
+        var mainRegionEnter = mainRegion.enter().append('rect').attr("x", $$.regionX.bind($$)).attr("y", $$.regionY.bind($$)).attr("width", $$.regionWidth.bind($$)).attr("height", $$.regionHeight.bind($$)).style("fill-opacity", 0);
+        $$.mainRegion = mainRegionEnter.merge(mainRegion).attr('class', $$.classRegion.bind($$));
+        mainRegion.exit().transition().duration(duration).style("opacity", 0).remove();
+    };
+    ChartInternal.prototype.redrawRegion = function (withTransition, transition) {
+        var $$ = this,
+            regions = $$.mainRegion;
+        return [(withTransition ? regions.transition(transition) : regions).attr("x", $$.regionX.bind($$)).attr("y", $$.regionY.bind($$)).attr("width", $$.regionWidth.bind($$)).attr("height", $$.regionHeight.bind($$)).style("fill-opacity", function (d) {
+            return isValue(d.opacity) ? d.opacity : 0.1;
+        })];
+    };
+    ChartInternal.prototype.regionX = function (d) {
+        var $$ = this,
+            config = $$.config,
+            xPos,
+            yScale = d.axis === 'y' ? $$.y : $$.y2;
+        if (d.axis === 'y' || d.axis === 'y2') {
+            xPos = config.axis_rotated ? 'start' in d ? yScale(d.start) : 0 : 0;
+        } else {
+            xPos = config.axis_rotated ? 0 : 'start' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.start) : d.start) : 0;
+        }
+        return xPos;
+    };
+    ChartInternal.prototype.regionY = function (d) {
+        var $$ = this,
+            config = $$.config,
+            yPos,
+            yScale = d.axis === 'y' ? $$.y : $$.y2;
+        if (d.axis === 'y' || d.axis === 'y2') {
+            yPos = config.axis_rotated ? 0 : 'end' in d ? yScale(d.end) : 0;
+        } else {
+            yPos = config.axis_rotated ? 'start' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.start) : d.start) : 0 : 0;
+        }
+        return yPos;
+    };
+    ChartInternal.prototype.regionWidth = function (d) {
+        var $$ = this,
+            config = $$.config,
+            start = $$.regionX(d),
+            end,
+            yScale = d.axis === 'y' ? $$.y : $$.y2;
+        if (d.axis === 'y' || d.axis === 'y2') {
+            end = config.axis_rotated ? 'end' in d ? yScale(d.end) : $$.width : $$.width;
+        } else {
+            end = config.axis_rotated ? $$.width : 'end' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.end) : d.end) : $$.width;
+        }
+        return end < start ? 0 : end - start;
+    };
+    ChartInternal.prototype.regionHeight = function (d) {
+        var $$ = this,
+            config = $$.config,
+            start = this.regionY(d),
+            end,
+            yScale = d.axis === 'y' ? $$.y : $$.y2;
+        if (d.axis === 'y' || d.axis === 'y2') {
+            end = config.axis_rotated ? $$.height : 'start' in d ? yScale(d.start) : $$.height;
+        } else {
+            end = config.axis_rotated ? 'end' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.end) : d.end) : $$.height : $$.height;
+        }
+        return end < start ? 0 : end - start;
+    };
+    ChartInternal.prototype.isRegionOnX = function (d) {
+        return !d.axis || d.axis === 'x';
+    };
+
+    ChartInternal.prototype.getScale = function (min, max, forTimeseries) {
+        return (forTimeseries ? this.d3.scaleTime() : this.d3.scaleLinear()).range([min, max]);
+    };
+    ChartInternal.prototype.getX = function (min, max, domain, offset) {
+        var $$ = this,
+            scale = $$.getScale(min, max, $$.isTimeSeries()),
+            _scale = domain ? scale.domain(domain) : scale,
+            key;
+        // Define customized scale if categorized axis
+        if ($$.isCategorized()) {
+            offset = offset || function () {
+                return 0;
+            };
+            scale = function scale(d, raw) {
+                var v = _scale(d) + offset(d);
+                return raw ? v : Math.ceil(v);
+            };
+        } else {
+            scale = function scale(d, raw) {
+                var v = _scale(d);
+                return raw ? v : Math.ceil(v);
+            };
+        }
+        // define functions
+        for (key in _scale) {
+            scale[key] = _scale[key];
+        }
+        scale.orgDomain = function () {
+            return _scale.domain();
+        };
+        // define custom domain() for categorized axis
+        if ($$.isCategorized()) {
+            scale.domain = function (domain) {
+                if (!arguments.length) {
+                    domain = this.orgDomain();
+                    return [domain[0], domain[1] + 1];
+                }
+                _scale.domain(domain);
+                return scale;
+            };
+        }
+        return scale;
+    };
+    ChartInternal.prototype.getY = function (min, max, domain) {
+        var scale = this.getScale(min, max, this.isTimeSeriesY());
+        if (domain) {
+            scale.domain(domain);
+        }
+        return scale;
+    };
+    ChartInternal.prototype.getYScale = function (id) {
+        return this.axis.getId(id) === 'y2' ? this.y2 : this.y;
+    };
+    ChartInternal.prototype.getSubYScale = function (id) {
+        return this.axis.getId(id) === 'y2' ? this.subY2 : this.subY;
+    };
+    ChartInternal.prototype.updateScales = function () {
+        var $$ = this,
+            config = $$.config,
+            forInit = !$$.x;
+        // update edges
+        $$.xMin = config.axis_rotated ? 1 : 0;
+        $$.xMax = config.axis_rotated ? $$.height : $$.width;
+        $$.yMin = config.axis_rotated ? 0 : $$.height;
+        $$.yMax = config.axis_rotated ? $$.width : 1;
+        $$.subXMin = $$.xMin;
+        $$.subXMax = $$.xMax;
+        $$.subYMin = config.axis_rotated ? 0 : $$.height2;
+        $$.subYMax = config.axis_rotated ? $$.width2 : 1;
+        // update scales
+        $$.x = $$.getX($$.xMin, $$.xMax, forInit ? undefined : $$.x.orgDomain(), function () {
+            return $$.xAxis.tickOffset();
+        });
+        $$.y = $$.getY($$.yMin, $$.yMax, forInit ? config.axis_y_default : $$.y.domain());
+        $$.y2 = $$.getY($$.yMin, $$.yMax, forInit ? config.axis_y2_default : $$.y2.domain());
+        $$.subX = $$.getX($$.xMin, $$.xMax, $$.orgXDomain, function (d) {
+            return d % 1 ? 0 : $$.subXAxis.tickOffset();
+        });
+        $$.subY = $$.getY($$.subYMin, $$.subYMax, forInit ? config.axis_y_default : $$.subY.domain());
+        $$.subY2 = $$.getY($$.subYMin, $$.subYMax, forInit ? config.axis_y2_default : $$.subY2.domain());
+        // update axes
+        $$.xAxisTickFormat = $$.axis.getXAxisTickFormat();
+        $$.xAxisTickValues = $$.axis.getXAxisTickValues();
+        $$.yAxisTickValues = $$.axis.getYAxisTickValues();
+        $$.y2AxisTickValues = $$.axis.getY2AxisTickValues();
+
+        $$.xAxis = $$.axis.getXAxis($$.x, $$.xOrient, $$.xAxisTickFormat, $$.xAxisTickValues, config.axis_x_tick_outer);
+        $$.subXAxis = $$.axis.getXAxis($$.subX, $$.subXOrient, $$.xAxisTickFormat, $$.xAxisTickValues, config.axis_x_tick_outer);
+        $$.yAxis = $$.axis.getYAxis($$.y, $$.yOrient, config.axis_y_tick_format, $$.yAxisTickValues, config.axis_y_tick_outer);
+        $$.y2Axis = $$.axis.getYAxis($$.y2, $$.y2Orient, config.axis_y2_tick_format, $$.y2AxisTickValues, config.axis_y2_tick_outer);
+
+        // Set initialized scales to brush and zoom
+        if (!forInit) {
+            if ($$.brush) {
+                $$.brush.updateScale($$.subX);
+            }
+        }
+        // update for arc
+        if ($$.updateArc) {
+            $$.updateArc();
+        }
+    };
+
+    ChartInternal.prototype.selectPoint = function (target, d, i) {
+        var $$ = this,
+            config = $$.config,
+            cx = (config.axis_rotated ? $$.circleY : $$.circleX).bind($$),
+            cy = (config.axis_rotated ? $$.circleX : $$.circleY).bind($$),
+            r = $$.pointSelectR.bind($$);
+        config.data_onselected.call($$.api, d, target.node());
+        // add selected-circle on low layer g
+        $$.main.select('.' + CLASS.selectedCircles + $$.getTargetSelectorSuffix(d.id)).selectAll('.' + CLASS.selectedCircle + '-' + i).data([d]).enter().append('circle').attr("class", function () {
+            return $$.generateClass(CLASS.selectedCircle, i);
+        }).attr("cx", cx).attr("cy", cy).attr("stroke", function () {
+            return $$.color(d);
+        }).attr("r", function (d) {
+            return $$.pointSelectR(d) * 1.4;
+        }).transition().duration(100).attr("r", r);
+    };
+    ChartInternal.prototype.unselectPoint = function (target, d, i) {
+        var $$ = this;
+        $$.config.data_onunselected.call($$.api, d, target.node());
+        // remove selected-circle from low layer g
+        $$.main.select('.' + CLASS.selectedCircles + $$.getTargetSelectorSuffix(d.id)).selectAll('.' + CLASS.selectedCircle + '-' + i).transition().duration(100).attr('r', 0).remove();
+    };
+    ChartInternal.prototype.togglePoint = function (selected, target, d, i) {
+        selected ? this.selectPoint(target, d, i) : this.unselectPoint(target, d, i);
+    };
+    ChartInternal.prototype.selectPath = function (target, d) {
+        var $$ = this;
+        $$.config.data_onselected.call($$, d, target.node());
+        if ($$.config.interaction_brighten) {
+            target.transition().duration(100).style("fill", function () {
+                return $$.d3.rgb($$.color(d)).brighter(0.75);
+            });
+        }
+    };
+    ChartInternal.prototype.unselectPath = function (target, d) {
+        var $$ = this;
+        $$.config.data_onunselected.call($$, d, target.node());
+        if ($$.config.interaction_brighten) {
+            target.transition().duration(100).style("fill", function () {
+                return $$.color(d);
+            });
+        }
+    };
+    ChartInternal.prototype.togglePath = function (selected, target, d, i) {
+        selected ? this.selectPath(target, d, i) : this.unselectPath(target, d, i);
+    };
+    ChartInternal.prototype.getToggle = function (that, d) {
+        var $$ = this,
+            toggle;
+        if (that.nodeName === 'circle') {
+            if ($$.isStepType(d)) {
+                // circle is hidden in step chart, so treat as within the click area
+                toggle = function toggle() {}; // TODO: how to select step chart?
+            } else {
+                toggle = $$.togglePoint;
+            }
+        } else if (that.nodeName === 'path') {
+            toggle = $$.togglePath;
+        }
+        return toggle;
+    };
+    ChartInternal.prototype.toggleShape = function (that, d, i) {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            shape = d3.select(that),
+            isSelected = shape.classed(CLASS.SELECTED),
+            toggle = $$.getToggle(that, d).bind($$);
+
+        if (config.data_selection_enabled && config.data_selection_isselectable(d)) {
+            if (!config.data_selection_multiple) {
+                $$.main.selectAll('.' + CLASS.shapes + (config.data_selection_grouped ? $$.getTargetSelectorSuffix(d.id) : "")).selectAll('.' + CLASS.shape).each(function (d, i) {
+                    var shape = d3.select(this);
+                    if (shape.classed(CLASS.SELECTED)) {
+                        toggle(false, shape.classed(CLASS.SELECTED, false), d, i);
+                    }
+                });
+            }
+            shape.classed(CLASS.SELECTED, !isSelected);
+            toggle(!isSelected, shape, d, i);
+        }
+    };
+
+    ChartInternal.prototype.initBar = function () {
+        var $$ = this;
+        $$.main.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartBars);
+    };
+    ChartInternal.prototype.updateTargetsForBar = function (targets) {
+        var $$ = this,
+            config = $$.config,
+            mainBars,
+            mainBarEnter,
+            classChartBar = $$.classChartBar.bind($$),
+            classBars = $$.classBars.bind($$),
+            classFocus = $$.classFocus.bind($$);
+        mainBars = $$.main.select('.' + CLASS.chartBars).selectAll('.' + CLASS.chartBar).data(targets).attr('class', function (d) {
+            return classChartBar(d) + classFocus(d);
+        });
+        mainBarEnter = mainBars.enter().append('g').attr('class', classChartBar).style("pointer-events", "none");
+        // Bars for each data
+        mainBarEnter.append('g').attr("class", classBars).style("cursor", function (d) {
+            return config.data_selection_isselectable(d) ? "pointer" : null;
+        });
+    };
+    ChartInternal.prototype.updateBar = function (durationForExit) {
+        var $$ = this,
+            barData = $$.barData.bind($$),
+            classBar = $$.classBar.bind($$),
+            initialOpacity = $$.initialOpacity.bind($$),
+            color = function color(d) {
+            return $$.color(d.id);
+        };
+        var mainBar = $$.main.selectAll('.' + CLASS.bars).selectAll('.' + CLASS.bar).data(barData);
+        var mainBarEnter = mainBar.enter().append('path').attr("class", classBar).style("stroke", color).style("fill", color);
+        $$.mainBar = mainBarEnter.merge(mainBar).style("opacity", initialOpacity);
+        mainBar.exit().transition().duration(durationForExit).style("opacity", 0);
+    };
+    ChartInternal.prototype.redrawBar = function (drawBar, withTransition, transition) {
+        return [(withTransition ? this.mainBar.transition(transition) : this.mainBar).attr('d', drawBar).style("stroke", this.color).style("fill", this.color).style("opacity", 1)];
+    };
+    ChartInternal.prototype.getBarW = function (axis, barTargetsNum) {
+        var $$ = this,
+            config = $$.config,
+            w = typeof config.bar_width === 'number' ? config.bar_width : barTargetsNum ? axis.tickInterval() * config.bar_width_ratio / barTargetsNum : 0;
+        return config.bar_width_max && w > config.bar_width_max ? config.bar_width_max : w;
+    };
+    ChartInternal.prototype.getBars = function (i, id) {
+        var $$ = this;
+        return (id ? $$.main.selectAll('.' + CLASS.bars + $$.getTargetSelectorSuffix(id)) : $$.main).selectAll('.' + CLASS.bar + (isValue(i) ? '-' + i : ''));
+    };
+    ChartInternal.prototype.expandBars = function (i, id, reset) {
+        var $$ = this;
+        if (reset) {
+            $$.unexpandBars();
+        }
+        $$.getBars(i, id).classed(CLASS.EXPANDED, true);
+    };
+    ChartInternal.prototype.unexpandBars = function (i) {
+        var $$ = this;
+        $$.getBars(i).classed(CLASS.EXPANDED, false);
+    };
+    ChartInternal.prototype.generateDrawBar = function (barIndices, isSub) {
+        var $$ = this,
+            config = $$.config,
+            getPoints = $$.generateGetBarPoints(barIndices, isSub);
+        return function (d, i) {
+            // 4 points that make a bar
+            var points = getPoints(d, i);
+
+            // switch points if axis is rotated, not applicable for sub chart
+            var indexX = config.axis_rotated ? 1 : 0;
+            var indexY = config.axis_rotated ? 0 : 1;
+
+            var path = 'M ' + points[0][indexX] + ',' + points[0][indexY] + ' ' + 'L' + points[1][indexX] + ',' + points[1][indexY] + ' ' + 'L' + points[2][indexX] + ',' + points[2][indexY] + ' ' + 'L' + points[3][indexX] + ',' + points[3][indexY] + ' ' + 'z';
+
+            return path;
+        };
+    };
+    ChartInternal.prototype.generateGetBarPoints = function (barIndices, isSub) {
+        var $$ = this,
+            axis = isSub ? $$.subXAxis : $$.xAxis,
+            barTargetsNum = barIndices.__max__ + 1,
+            barW = $$.getBarW(axis, barTargetsNum),
+            barX = $$.getShapeX(barW, barTargetsNum, barIndices, !!isSub),
+            barY = $$.getShapeY(!!isSub),
+            barOffset = $$.getShapeOffset($$.isBarType, barIndices, !!isSub),
+            barSpaceOffset = barW * ($$.config.bar_space / 2),
+            yScale = isSub ? $$.getSubYScale : $$.getYScale;
+        return function (d, i) {
+            var y0 = yScale.call($$, d.id)(0),
+                offset = barOffset(d, i) || y0,
+                // offset is for stacked bar chart
+            posX = barX(d),
+                posY = barY(d);
+            // fix posY not to overflow opposite quadrant
+            if ($$.config.axis_rotated) {
+                if (0 < d.value && posY < y0 || d.value < 0 && y0 < posY) {
+                    posY = y0;
+                }
+            }
+            // 4 points that make a bar
+            return [[posX + barSpaceOffset, offset], [posX + barSpaceOffset, posY - (y0 - offset)], [posX + barW - barSpaceOffset, posY - (y0 - offset)], [posX + barW - barSpaceOffset, offset]];
+        };
+    };
+    ChartInternal.prototype.isWithinBar = function (mouse, that) {
+        var box = that.getBoundingClientRect(),
+            seg0 = that.pathSegList.getItem(0),
+            seg1 = that.pathSegList.getItem(1),
+            x = Math.min(seg0.x, seg1.x),
+            y = Math.min(seg0.y, seg1.y),
+            w = box.width,
+            h = box.height,
+            offset = 2,
+            sx = x - offset,
+            ex = x + w + offset,
+            sy = y + h + offset,
+            ey = y - offset;
+        return sx < mouse[0] && mouse[0] < ex && ey < mouse[1] && mouse[1] < sy;
+    };
+
+    ChartInternal.prototype.getShapeIndices = function (typeFilter) {
+        var $$ = this,
+            config = $$.config,
+            indices = {},
+            i = 0,
+            j,
+            k;
+        $$.filterTargetsToShow($$.data.targets.filter(typeFilter, $$)).forEach(function (d) {
+            for (j = 0; j < config.data_groups.length; j++) {
+                if (config.data_groups[j].indexOf(d.id) < 0) {
+                    continue;
+                }
+                for (k = 0; k < config.data_groups[j].length; k++) {
+                    if (config.data_groups[j][k] in indices) {
+                        indices[d.id] = indices[config.data_groups[j][k]];
+                        break;
+                    }
+                }
+            }
+            if (isUndefined(indices[d.id])) {
+                indices[d.id] = i++;
+            }
+        });
+        indices.__max__ = i - 1;
+        return indices;
+    };
+    ChartInternal.prototype.getShapeX = function (offset, targetsNum, indices, isSub) {
+        var $$ = this,
+            scale = isSub ? $$.subX : $$.x;
+        return function (d) {
+            var index = d.id in indices ? indices[d.id] : 0;
+            return d.x || d.x === 0 ? scale(d.x) - offset * (targetsNum / 2 - index) : 0;
+        };
+    };
+    ChartInternal.prototype.getShapeY = function (isSub) {
+        var $$ = this;
+        return function (d) {
+            var scale = isSub ? $$.getSubYScale(d.id) : $$.getYScale(d.id);
+            return scale(d.value);
+        };
+    };
+    ChartInternal.prototype.getShapeOffset = function (typeFilter, indices, isSub) {
+        var $$ = this,
+            targets = $$.orderTargets($$.filterTargetsToShow($$.data.targets.filter(typeFilter, $$))),
+            targetIds = targets.map(function (t) {
+            return t.id;
+        });
+        return function (d, i) {
+            var scale = isSub ? $$.getSubYScale(d.id) : $$.getYScale(d.id),
+                y0 = scale(0),
+                offset = y0;
+            targets.forEach(function (t) {
+                var values = $$.isStepType(d) ? $$.convertValuesToStep(t.values) : t.values;
+                if (t.id === d.id || indices[t.id] !== indices[d.id]) {
+                    return;
+                }
+                if (targetIds.indexOf(t.id) < targetIds.indexOf(d.id)) {
+                    // check if the x values line up
+                    if (typeof values[i] === 'undefined' || +values[i].x !== +d.x) {
+                        // "+" for timeseries
+                        // if not, try to find the value that does line up
+                        i = -1;
+                        values.forEach(function (v, j) {
+                            if (v.x === d.x) {
+                                i = j;
+                            }
+                        });
+                    }
+                    if (i in values && values[i].value * d.value >= 0) {
+                        offset += scale(values[i].value) - y0;
+                    }
+                }
+            });
+            return offset;
+        };
+    };
+    ChartInternal.prototype.isWithinShape = function (that, d) {
+        var $$ = this,
+            shape = $$.d3.select(that),
+            isWithin;
+        if (!$$.isTargetToShow(d.id)) {
+            isWithin = false;
+        } else if (that.nodeName === 'circle') {
+            isWithin = $$.isStepType(d) ? $$.isWithinStep(that, $$.getYScale(d.id)(d.value)) : $$.isWithinCircle(that, $$.pointSelectR(d) * 1.5);
+        } else if (that.nodeName === 'path') {
+            isWithin = shape.classed(CLASS.bar) ? $$.isWithinBar($$.d3.mouse(that), that) : true;
+        }
+        return isWithin;
+    };
+
+    ChartInternal.prototype.getInterpolate = function (d) {
+        var $$ = this,
+            d3 = $$.d3,
+            types = {
+            'linear': d3.curveLinear,
+            'linear-closed': d3.curveLinearClosed,
+            'basis': d3.curveBasis,
+            'basis-open': d3.curveBasisOpen,
+            'basis-closed': d3.curveBasisClosed,
+            'bundle': d3.curveBundle,
+            'cardinal': d3.curveCardinal,
+            'cardinal-open': d3.curveCardinalOpen,
+            'cardinal-closed': d3.curveCardinalClosed,
+            'monotone': d3.curveMonotoneX,
+            'step': d3.curveStep,
+            'step-before': d3.curveStepBefore,
+            'step-after': d3.curveStepAfter
+        },
+            type;
+
+        if ($$.isSplineType(d)) {
+            type = types[$$.config.spline_interpolation_type] || types.cardinal;
+        } else if ($$.isStepType(d)) {
+            type = types[$$.config.line_step_type];
+        } else {
+            type = types.linear;
+        }
+        return type;
+    };
+
+    ChartInternal.prototype.initLine = function () {
+        var $$ = this;
+        $$.main.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartLines);
+    };
+    ChartInternal.prototype.updateTargetsForLine = function (targets) {
+        var $$ = this,
+            config = $$.config,
+            mainLines,
+            mainLineEnter,
+            classChartLine = $$.classChartLine.bind($$),
+            classLines = $$.classLines.bind($$),
+            classAreas = $$.classAreas.bind($$),
+            classCircles = $$.classCircles.bind($$),
+            classFocus = $$.classFocus.bind($$);
+        mainLines = $$.main.select('.' + CLASS.chartLines).selectAll('.' + CLASS.chartLine).data(targets).attr('class', function (d) {
+            return classChartLine(d) + classFocus(d);
+        });
+        mainLineEnter = mainLines.enter().append('g').attr('class', classChartLine).style('opacity', 0).style("pointer-events", "none");
+        // Lines for each data
+        mainLineEnter.append('g').attr("class", classLines);
+        // Areas
+        mainLineEnter.append('g').attr('class', classAreas);
+        // Circles for each data point on lines
+        mainLineEnter.append('g').attr("class", function (d) {
+            return $$.generateClass(CLASS.selectedCircles, d.id);
+        });
+        mainLineEnter.append('g').attr("class", classCircles).style("cursor", function (d) {
+            return config.data_selection_isselectable(d) ? "pointer" : null;
+        });
+        // Update date for selected circles
+        targets.forEach(function (t) {
+            $$.main.selectAll('.' + CLASS.selectedCircles + $$.getTargetSelectorSuffix(t.id)).selectAll('.' + CLASS.selectedCircle).each(function (d) {
+                d.value = t.values[d.index].value;
+            });
+        });
+        // MEMO: can not keep same color...
+        //mainLineUpdate.exit().remove();
+    };
+    ChartInternal.prototype.updateLine = function (durationForExit) {
+        var $$ = this;
+        var mainLine = $$.main.selectAll('.' + CLASS.lines).selectAll('.' + CLASS.line).data($$.lineData.bind($$));
+        var mainLineEnter = mainLine.enter().append('path').attr('class', $$.classLine.bind($$)).style("stroke", $$.color);
+        $$.mainLine = mainLineEnter.merge(mainLine).style("opacity", $$.initialOpacity.bind($$)).style('shape-rendering', function (d) {
+            return $$.isStepType(d) ? 'crispEdges' : '';
+        }).attr('transform', null);
+        mainLine.exit().transition().duration(durationForExit).style('opacity', 0);
+    };
+    ChartInternal.prototype.redrawLine = function (drawLine, withTransition, transition) {
+        return [(withTransition ? this.mainLine.transition(transition) : this.mainLine).attr("d", drawLine).style("stroke", this.color).style("opacity", 1)];
+    };
+    ChartInternal.prototype.generateDrawLine = function (lineIndices, isSub) {
+        var $$ = this,
+            config = $$.config,
+            line = $$.d3.line(),
+            getPoints = $$.generateGetLinePoints(lineIndices, isSub),
+            yScaleGetter = isSub ? $$.getSubYScale : $$.getYScale,
+            xValue = function xValue(d) {
+            return (isSub ? $$.subxx : $$.xx).call($$, d);
+        },
+            yValue = function yValue(d, i) {
+            return config.data_groups.length > 0 ? getPoints(d, i)[0][1] : yScaleGetter.call($$, d.id)(d.value);
+        };
+
+        line = config.axis_rotated ? line.x(yValue).y(xValue) : line.x(xValue).y(yValue);
+        if (!config.line_connectNull) {
+            line = line.defined(function (d) {
+                return d.value != null;
+            });
+        }
+        return function (d) {
+            var values = config.line_connectNull ? $$.filterRemoveNull(d.values) : d.values,
+                x = isSub ? $$.subX : $$.x,
+                y = yScaleGetter.call($$, d.id),
+                x0 = 0,
+                y0 = 0,
+                path;
+            if ($$.isLineType(d)) {
+                if (config.data_regions[d.id]) {
+                    path = $$.lineWithRegions(values, x, y, config.data_regions[d.id]);
+                } else {
+                    if ($$.isStepType(d)) {
+                        values = $$.convertValuesToStep(values);
+                    }
+                    path = line.curve($$.getInterpolate(d))(values);
+                }
+            } else {
+                if (values[0]) {
+                    x0 = x(values[0].x);
+                    y0 = y(values[0].value);
+                }
+                path = config.axis_rotated ? "M " + y0 + " " + x0 : "M " + x0 + " " + y0;
+            }
+            return path ? path : "M 0 0";
+        };
+    };
+    ChartInternal.prototype.generateGetLinePoints = function (lineIndices, isSub) {
+        // partial duplication of generateGetBarPoints
+        var $$ = this,
+            config = $$.config,
+            lineTargetsNum = lineIndices.__max__ + 1,
+            x = $$.getShapeX(0, lineTargetsNum, lineIndices, !!isSub),
+            y = $$.getShapeY(!!isSub),
+            lineOffset = $$.getShapeOffset($$.isLineType, lineIndices, !!isSub),
+            yScale = isSub ? $$.getSubYScale : $$.getYScale;
+        return function (d, i) {
+            var y0 = yScale.call($$, d.id)(0),
+                offset = lineOffset(d, i) || y0,
+                // offset is for stacked area chart
+            posX = x(d),
+                posY = y(d);
+            // fix posY not to overflow opposite quadrant
+            if (config.axis_rotated) {
+                if (0 < d.value && posY < y0 || d.value < 0 && y0 < posY) {
+                    posY = y0;
+                }
+            }
+            // 1 point that marks the line position
+            return [[posX, posY - (y0 - offset)], [posX, posY - (y0 - offset)], // needed for compatibility
+            [posX, posY - (y0 - offset)], // needed for compatibility
+            [posX, posY - (y0 - offset)] // needed for compatibility
+            ];
+        };
+    };
+
+    ChartInternal.prototype.lineWithRegions = function (d, x, y, _regions) {
+        var $$ = this,
+            config = $$.config,
+            prev = -1,
+            i,
+            j,
+            s = "M",
+            sWithRegion,
+            xp,
+            yp,
+            dx,
+            dy,
+            dd,
+            diff,
+            diffx2,
+            xOffset = $$.isCategorized() ? 0.5 : 0,
+            xValue,
+            yValue,
+            regions = [];
+
+        function isWithinRegions(x, regions) {
+            var i;
+            for (i = 0; i < regions.length; i++) {
+                if (regions[i].start < x && x <= regions[i].end) {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        // Check start/end of regions
+        if (isDefined(_regions)) {
+            for (i = 0; i < _regions.length; i++) {
+                regions[i] = {};
+                if (isUndefined(_regions[i].start)) {
+                    regions[i].start = d[0].x;
+                } else {
+                    regions[i].start = $$.isTimeSeries() ? $$.parseDate(_regions[i].start) : _regions[i].start;
+                }
+                if (isUndefined(_regions[i].end)) {
+                    regions[i].end = d[d.length - 1].x;
+                } else {
+                    regions[i].end = $$.isTimeSeries() ? $$.parseDate(_regions[i].end) : _regions[i].end;
+                }
+            }
+        }
+
+        // Set scales
+        xValue = config.axis_rotated ? function (d) {
+            return y(d.value);
+        } : function (d) {
+            return x(d.x);
+        };
+        yValue = config.axis_rotated ? function (d) {
+            return x(d.x);
+        } : function (d) {
+            return y(d.value);
+        };
+
+        // Define svg generator function for region
+        function generateM(points) {
+            return 'M' + points[0][0] + ' ' + points[0][1] + ' ' + points[1][0] + ' ' + points[1][1];
+        }
+        if ($$.isTimeSeries()) {
+            sWithRegion = function sWithRegion(d0, d1, j, diff) {
+                var x0 = d0.x.getTime(),
+                    x_diff = d1.x - d0.x,
+                    xv0 = new Date(x0 + x_diff * j),
+                    xv1 = new Date(x0 + x_diff * (j + diff)),
+                    points;
+                if (config.axis_rotated) {
+                    points = [[y(yp(j)), x(xv0)], [y(yp(j + diff)), x(xv1)]];
+                } else {
+                    points = [[x(xv0), y(yp(j))], [x(xv1), y(yp(j + diff))]];
+                }
+                return generateM(points);
+            };
+        } else {
+            sWithRegion = function sWithRegion(d0, d1, j, diff) {
+                var points;
+                if (config.axis_rotated) {
+                    points = [[y(yp(j), true), x(xp(j))], [y(yp(j + diff), true), x(xp(j + diff))]];
+                } else {
+                    points = [[x(xp(j), true), y(yp(j))], [x(xp(j + diff), true), y(yp(j + diff))]];
+                }
+                return generateM(points);
+            };
+        }
+
+        // Generate
+        for (i = 0; i < d.length; i++) {
+
+            // Draw as normal
+            if (isUndefined(regions) || !isWithinRegions(d[i].x, regions)) {
+                s += " " + xValue(d[i]) + " " + yValue(d[i]);
+            }
+            // Draw with region // TODO: Fix for horizotal charts
+            else {
+                    xp = $$.getScale(d[i - 1].x + xOffset, d[i].x + xOffset, $$.isTimeSeries());
+                    yp = $$.getScale(d[i - 1].value, d[i].value);
+
+                    dx = x(d[i].x) - x(d[i - 1].x);
+                    dy = y(d[i].value) - y(d[i - 1].value);
+                    dd = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
+                    diff = 2 / dd;
+                    diffx2 = diff * 2;
+
+                    for (j = diff; j <= 1; j += diffx2) {
+                        s += sWithRegion(d[i - 1], d[i], j, diff);
+                    }
+                }
+            prev = d[i].x;
+        }
+
+        return s;
+    };
+
+    ChartInternal.prototype.updateArea = function (durationForExit) {
+        var $$ = this,
+            d3 = $$.d3;
+        var mainArea = $$.main.selectAll('.' + CLASS.areas).selectAll('.' + CLASS.area).data($$.lineData.bind($$));
+        var mainAreaEnter = mainArea.enter().append('path').attr("class", $$.classArea.bind($$)).style("fill", $$.color).style("opacity", function () {
+            $$.orgAreaOpacity = +d3.select(this).style('opacity');return 0;
+        });
+        $$.mainArea = mainAreaEnter.merge(mainArea).style("opacity", $$.orgAreaOpacity);
+        mainArea.exit().transition().duration(durationForExit).style('opacity', 0);
+    };
+    ChartInternal.prototype.redrawArea = function (drawArea, withTransition, transition) {
+        return [(withTransition ? this.mainArea.transition(transition) : this.mainArea).attr("d", drawArea).style("fill", this.color).style("opacity", this.orgAreaOpacity)];
+    };
+    ChartInternal.prototype.generateDrawArea = function (areaIndices, isSub) {
+        var $$ = this,
+            config = $$.config,
+            area = $$.d3.area(),
+            getPoints = $$.generateGetAreaPoints(areaIndices, isSub),
+            yScaleGetter = isSub ? $$.getSubYScale : $$.getYScale,
+            xValue = function xValue(d) {
+            return (isSub ? $$.subxx : $$.xx).call($$, d);
+        },
+            value0 = function value0(d, i) {
+            return config.data_groups.length > 0 ? getPoints(d, i)[0][1] : yScaleGetter.call($$, d.id)($$.getAreaBaseValue(d.id));
+        },
+            value1 = function value1(d, i) {
+            return config.data_groups.length > 0 ? getPoints(d, i)[1][1] : yScaleGetter.call($$, d.id)(d.value);
+        };
+
+        area = config.axis_rotated ? area.x0(value0).x1(value1).y(xValue) : area.x(xValue).y0(config.area_above ? 0 : value0).y1(value1);
+        if (!config.line_connectNull) {
+            area = area.defined(function (d) {
+                return d.value !== null;
+            });
+        }
+
+        return function (d) {
+            var values = config.line_connectNull ? $$.filterRemoveNull(d.values) : d.values,
+                x0 = 0,
+                y0 = 0,
+                path;
+            if ($$.isAreaType(d)) {
+                if ($$.isStepType(d)) {
+                    values = $$.convertValuesToStep(values);
+                }
+                path = area.curve($$.getInterpolate(d))(values);
+            } else {
+                if (values[0]) {
+                    x0 = $$.x(values[0].x);
+                    y0 = $$.getYScale(d.id)(values[0].value);
+                }
+                path = config.axis_rotated ? "M " + y0 + " " + x0 : "M " + x0 + " " + y0;
+            }
+            return path ? path : "M 0 0";
+        };
+    };
+    ChartInternal.prototype.getAreaBaseValue = function () {
+        return 0;
+    };
+    ChartInternal.prototype.generateGetAreaPoints = function (areaIndices, isSub) {
+        // partial duplication of generateGetBarPoints
+        var $$ = this,
+            config = $$.config,
+            areaTargetsNum = areaIndices.__max__ + 1,
+            x = $$.getShapeX(0, areaTargetsNum, areaIndices, !!isSub),
+            y = $$.getShapeY(!!isSub),
+            areaOffset = $$.getShapeOffset($$.isAreaType, areaIndices, !!isSub),
+            yScale = isSub ? $$.getSubYScale : $$.getYScale;
+        return function (d, i) {
+            var y0 = yScale.call($$, d.id)(0),
+                offset = areaOffset(d, i) || y0,
+                // offset is for stacked area chart
+            posX = x(d),
+                posY = y(d);
+            // fix posY not to overflow opposite quadrant
+            if (config.axis_rotated) {
+                if (0 < d.value && posY < y0 || d.value < 0 && y0 < posY) {
+                    posY = y0;
+                }
+            }
+            // 1 point that marks the area position
+            return [[posX, offset], [posX, posY - (y0 - offset)], [posX, posY - (y0 - offset)], // needed for compatibility
+            [posX, offset] // needed for compatibility
+            ];
+        };
+    };
+
+    ChartInternal.prototype.updateCircle = function (cx, cy) {
+        var $$ = this;
+        var mainCircle = $$.main.selectAll('.' + CLASS.circles).selectAll('.' + CLASS.circle).data($$.lineOrScatterData.bind($$));
+        var mainCircleEnter = mainCircle.enter().append("circle").attr("class", $$.classCircle.bind($$)).attr("cx", cx).attr("cy", cy).attr("r", $$.pointR.bind($$)).style("fill", $$.color);
+        $$.mainCircle = mainCircleEnter.merge(mainCircle).style("opacity", $$.initialOpacityForCircle.bind($$));
+        mainCircle.exit().style("opacity", 0);
+    };
+    ChartInternal.prototype.redrawCircle = function (cx, cy, withTransition, transition) {
+        var $$ = this,
+            selectedCircles = $$.main.selectAll('.' + CLASS.selectedCircle);
+        return [(withTransition ? $$.mainCircle.transition(transition) : $$.mainCircle).style('opacity', this.opacityForCircle.bind($$)).style("fill", $$.color).attr("cx", cx).attr("cy", cy), (withTransition ? selectedCircles.transition(transition) : selectedCircles).attr("cx", cx).attr("cy", cy)];
+    };
+    ChartInternal.prototype.circleX = function (d) {
+        return d.x || d.x === 0 ? this.x(d.x) : null;
+    };
+    ChartInternal.prototype.updateCircleY = function () {
+        var $$ = this,
+            lineIndices,
+            getPoints;
+        if ($$.config.data_groups.length > 0) {
+            lineIndices = $$.getShapeIndices($$.isLineType), getPoints = $$.generateGetLinePoints(lineIndices);
+            $$.circleY = function (d, i) {
+                return getPoints(d, i)[0][1];
+            };
+        } else {
+            $$.circleY = function (d) {
+                return $$.getYScale(d.id)(d.value);
+            };
+        }
+    };
+    ChartInternal.prototype.getCircles = function (i, id) {
+        var $$ = this;
+        return (id ? $$.main.selectAll('.' + CLASS.circles + $$.getTargetSelectorSuffix(id)) : $$.main).selectAll('.' + CLASS.circle + (isValue(i) ? '-' + i : ''));
+    };
+    ChartInternal.prototype.expandCircles = function (i, id, reset) {
+        var $$ = this,
+            r = $$.pointExpandedR.bind($$);
+        if (reset) {
+            $$.unexpandCircles();
+        }
+        $$.getCircles(i, id).classed(CLASS.EXPANDED, true).attr('r', r);
+    };
+    ChartInternal.prototype.unexpandCircles = function (i) {
+        var $$ = this,
+            r = $$.pointR.bind($$);
+        $$.getCircles(i).filter(function () {
+            return $$.d3.select(this).classed(CLASS.EXPANDED);
+        }).classed(CLASS.EXPANDED, false).attr('r', r);
+    };
+    ChartInternal.prototype.pointR = function (d) {
+        var $$ = this,
+            config = $$.config;
+        return $$.isStepType(d) ? 0 : isFunction(config.point_r) ? config.point_r(d) : config.point_r;
+    };
+    ChartInternal.prototype.pointExpandedR = function (d) {
+        var $$ = this,
+            config = $$.config;
+        if (config.point_focus_expand_enabled) {
+            return isFunction(config.point_focus_expand_r) ? config.point_focus_expand_r(d) : config.point_focus_expand_r ? config.point_focus_expand_r : $$.pointR(d) * 1.75;
+        } else {
+            return $$.pointR(d);
+        }
+    };
+    ChartInternal.prototype.pointSelectR = function (d) {
+        var $$ = this,
+            config = $$.config;
+        return isFunction(config.point_select_r) ? config.point_select_r(d) : config.point_select_r ? config.point_select_r : $$.pointR(d) * 4;
+    };
+    ChartInternal.prototype.isWithinCircle = function (that, r) {
+        var d3 = this.d3,
+            mouse = d3.mouse(that),
+            d3_this = d3.select(that),
+            cx = +d3_this.attr("cx"),
+            cy = +d3_this.attr("cy");
+        return Math.sqrt(Math.pow(cx - mouse[0], 2) + Math.pow(cy - mouse[1], 2)) < r;
+    };
+    ChartInternal.prototype.isWithinStep = function (that, y) {
+        return Math.abs(y - this.d3.mouse(that)[1]) < 30;
+    };
+
+    ChartInternal.prototype.getCurrentWidth = function () {
+        var $$ = this,
+            config = $$.config;
+        return config.size_width ? config.size_width : $$.getParentWidth();
+    };
+    ChartInternal.prototype.getCurrentHeight = function () {
+        var $$ = this,
+            config = $$.config,
+            h = config.size_height ? config.size_height : $$.getParentHeight();
+        return h > 0 ? h : 320 / ($$.hasType('gauge') && !config.gauge_fullCircle ? 2 : 1);
+    };
+    ChartInternal.prototype.getCurrentPaddingTop = function () {
+        var $$ = this,
+            config = $$.config,
+            padding = isValue(config.padding_top) ? config.padding_top : 0;
+        if ($$.title && $$.title.node()) {
+            padding += $$.getTitlePadding();
+        }
+        return padding;
+    };
+    ChartInternal.prototype.getCurrentPaddingBottom = function () {
+        var config = this.config;
+        return isValue(config.padding_bottom) ? config.padding_bottom : 0;
+    };
+    ChartInternal.prototype.getCurrentPaddingLeft = function (withoutRecompute) {
+        var $$ = this,
+            config = $$.config;
+        if (isValue(config.padding_left)) {
+            return config.padding_left;
+        } else if (config.axis_rotated) {
+            return !config.axis_x_show || config.axis_x_inner ? 1 : Math.max(ceil10($$.getAxisWidthByAxisId('x', withoutRecompute)), 40);
+        } else if (!config.axis_y_show || config.axis_y_inner) {
+            // && !config.axis_rotated
+            return $$.axis.getYAxisLabelPosition().isOuter ? 30 : 1;
+        } else {
+            return ceil10($$.getAxisWidthByAxisId('y', withoutRecompute));
+        }
+    };
+    ChartInternal.prototype.getCurrentPaddingRight = function () {
+        var $$ = this,
+            config = $$.config,
+            defaultPadding = 10,
+            legendWidthOnRight = $$.isLegendRight ? $$.getLegendWidth() + 20 : 0;
+        if (isValue(config.padding_right)) {
+            return config.padding_right + 1; // 1 is needed not to hide tick line
+        } else if (config.axis_rotated) {
+            return defaultPadding + legendWidthOnRight;
+        } else if (!config.axis_y2_show || config.axis_y2_inner) {
+            // && !config.axis_rotated
+            return 2 + legendWidthOnRight + ($$.axis.getY2AxisLabelPosition().isOuter ? 20 : 0);
+        } else {
+            return ceil10($$.getAxisWidthByAxisId('y2')) + legendWidthOnRight;
+        }
+    };
+
+    ChartInternal.prototype.getParentRectValue = function (key) {
+        var parent = this.selectChart.node(),
+            v;
+        while (parent && parent.tagName !== 'BODY') {
+            try {
+                v = parent.getBoundingClientRect()[key];
+            } catch (e) {
+                if (key === 'width') {
+                    // In IE in certain cases getBoundingClientRect
+                    // will cause an "unspecified error"
+                    v = parent.offsetWidth;
+                }
+            }
+            if (v) {
+                break;
+            }
+            parent = parent.parentNode;
+        }
+        return v;
+    };
+    ChartInternal.prototype.getParentWidth = function () {
+        return this.getParentRectValue('width');
+    };
+    ChartInternal.prototype.getParentHeight = function () {
+        var h = this.selectChart.style('height');
+        return h.indexOf('px') > 0 ? +h.replace('px', '') : 0;
+    };
+
+    ChartInternal.prototype.getSvgLeft = function (withoutRecompute) {
+        var $$ = this,
+            config = $$.config,
+            hasLeftAxisRect = config.axis_rotated || !config.axis_rotated && !config.axis_y_inner,
+            leftAxisClass = config.axis_rotated ? CLASS.axisX : CLASS.axisY,
+            leftAxis = $$.main.select('.' + leftAxisClass).node(),
+            svgRect = leftAxis && hasLeftAxisRect ? leftAxis.getBoundingClientRect() : { right: 0 },
+            chartRect = $$.selectChart.node().getBoundingClientRect(),
+            hasArc = $$.hasArcType(),
+            svgLeft = svgRect.right - chartRect.left - (hasArc ? 0 : $$.getCurrentPaddingLeft(withoutRecompute));
+        return svgLeft > 0 ? svgLeft : 0;
+    };
+
+    ChartInternal.prototype.getAxisWidthByAxisId = function (id, withoutRecompute) {
+        var $$ = this,
+            position = $$.axis.getLabelPositionById(id);
+        return $$.axis.getMaxTickWidth(id, withoutRecompute) + (position.isInner ? 20 : 40);
+    };
+    ChartInternal.prototype.getHorizontalAxisHeight = function (axisId) {
+        var $$ = this,
+            config = $$.config,
+            h = 30;
+        if (axisId === 'x' && !config.axis_x_show) {
+            return 8;
+        }
+        if (axisId === 'x' && config.axis_x_height) {
+            return config.axis_x_height;
+        }
+        if (axisId === 'y' && !config.axis_y_show) {
+            return config.legend_show && !$$.isLegendRight && !$$.isLegendInset ? 10 : 1;
+        }
+        if (axisId === 'y2' && !config.axis_y2_show) {
+            return $$.rotated_padding_top;
+        }
+        // Calculate x axis height when tick rotated
+        if (axisId === 'x' && !config.axis_rotated && config.axis_x_tick_rotate) {
+            h = 30 + $$.axis.getMaxTickWidth(axisId) * Math.cos(Math.PI * (90 - Math.abs(config.axis_x_tick_rotate)) / 180);
+        }
+        // Calculate y axis height when tick rotated
+        if (axisId === 'y' && config.axis_rotated && config.axis_y_tick_rotate) {
+            h = 30 + $$.axis.getMaxTickWidth(axisId) * Math.cos(Math.PI * (90 - Math.abs(config.axis_y_tick_rotate)) / 180);
+        }
+        return h + ($$.axis.getLabelPositionById(axisId).isInner ? 0 : 10) + (axisId === 'y2' ? -10 : 0);
+    };
+
+    ChartInternal.prototype.initBrush = function (scale) {
+        var $$ = this,
+            d3 = $$.d3;
+        // TODO: dynamically change brushY/brushX according to axis_rotated.
+        $$.brush = ($$.config.axis_rotated ? d3.brushY() : d3.brushX()).on("brush", function () {
+            var event = d3.event.sourceEvent;
+            if (event && event.type === "zoom") {
+                return;
+            }
+            $$.redrawForBrush();
+        }).on("end", function () {
+            var event = d3.event.sourceEvent;
+            if (event && event.type === "zoom") {
+                return;
+            }
+            if ($$.brush.empty() && event && event.type !== 'end') {
+                $$.brush.clear();
+            }
+        });
+        $$.brush.updateExtent = function () {
+            var range = this.scale.range(),
+                extent;
+            if ($$.config.axis_rotated) {
+                extent = [[0, range[0]], [$$.width2, range[1]]];
+            } else {
+                extent = [[range[0], 0], [range[1], $$.height2]];
+            }
+            this.extent(extent);
+            return this;
+        };
+        $$.brush.updateScale = function (scale) {
+            this.scale = scale;
+            return this;
+        };
+        $$.brush.update = function (scale) {
+            this.updateScale(scale || $$.subX).updateExtent();
+            $$.context.select('.' + CLASS.brush).call(this);
+        };
+        $$.brush.clear = function () {
+            $$.context.select('.' + CLASS.brush).call($$.brush.move, null);
+        };
+        $$.brush.selection = function () {
+            return d3.brushSelection($$.context.select('.' + CLASS.brush).node());
+        };
+        $$.brush.selectionAsValue = function (selectionAsValue, withTransition) {
+            var selection, brush;
+            if (selectionAsValue) {
+                if ($$.context) {
+                    selection = [this.scale(selectionAsValue[0]), this.scale(selectionAsValue[1])];
+                    brush = $$.context.select('.' + CLASS.brush);
+                    if (withTransition) {
+                        brush = brush.transition();
+                    }
+                    $$.brush.move(brush, selection);
+                }
+                return [];
+            }
+            selection = $$.brush.selection() || [0, 0];
+            return [this.scale.invert(selection[0]), this.scale.invert(selection[1])];
+        };
+        $$.brush.empty = function () {
+            var selection = $$.brush.selection();
+            return !selection || selection[0] === selection[1];
+        };
+        return $$.brush.updateScale(scale);
+    };
+    ChartInternal.prototype.initSubchart = function () {
+        var $$ = this,
+            config = $$.config,
+            context = $$.context = $$.svg.append("g").attr("transform", $$.getTranslate('context')),
+            visibility = config.subchart_show ? 'visible' : 'hidden';
+
+        // set style
+        context.style('visibility', visibility);
+
+        // Define g for chart area
+        context.append('g').attr("clip-path", $$.clipPathForSubchart).attr('class', CLASS.chart);
+
+        // Define g for bar chart area
+        context.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartBars);
+
+        // Define g for line chart area
+        context.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartLines);
+
+        // Add extent rect for Brush
+        context.append("g").attr("clip-path", $$.clipPath).attr("class", CLASS.brush);
+
+        // ATTENTION: This must be called AFTER chart added
+        // Add Axis
+        $$.axes.subx = context.append("g").attr("class", CLASS.axisX).attr("transform", $$.getTranslate('subx')).attr("clip-path", config.axis_rotated ? "" : $$.clipPathForXAxis);
+    };
+    ChartInternal.prototype.initSubchartBrush = function () {
+        var $$ = this;
+        // Add extent rect for Brush
+        $$.initBrush($$.subX).updateExtent();
+        $$.context.select('.' + CLASS.brush).call($$.brush);
+    };
+    ChartInternal.prototype.updateTargetsForSubchart = function (targets) {
+        var $$ = this,
+            context = $$.context,
+            config = $$.config,
+            contextLineEnter,
+            contextLine,
+            contextBarEnter,
+            contextBar,
+            classChartBar = $$.classChartBar.bind($$),
+            classBars = $$.classBars.bind($$),
+            classChartLine = $$.classChartLine.bind($$),
+            classLines = $$.classLines.bind($$),
+            classAreas = $$.classAreas.bind($$);
+
+        if (config.subchart_show) {
+            //-- Bar --//
+            contextBar = context.select('.' + CLASS.chartBars).selectAll('.' + CLASS.chartBar).data(targets);
+            contextBarEnter = contextBar.enter().append('g').style('opacity', 0);
+            contextBarEnter.merge(contextBar).attr('class', classChartBar);
+            // Bars for each data
+            contextBarEnter.append('g').attr("class", classBars);
+
+            //-- Line --//
+            contextLine = context.select('.' + CLASS.chartLines).selectAll('.' + CLASS.chartLine).data(targets);
+            contextLineEnter = contextLine.enter().append('g').style('opacity', 0);
+            contextLineEnter.merge(contextLine).attr('class', classChartLine);
+            // Lines for each data
+            contextLineEnter.append("g").attr("class", classLines);
+            // Area
+            contextLineEnter.append("g").attr("class", classAreas);
+
+            //-- Brush --//
+            context.selectAll('.' + CLASS.brush + ' rect').attr(config.axis_rotated ? "width" : "height", config.axis_rotated ? $$.width2 : $$.height2);
+        }
+    };
+    ChartInternal.prototype.updateBarForSubchart = function (durationForExit) {
+        var $$ = this;
+        var contextBar = $$.context.selectAll('.' + CLASS.bars).selectAll('.' + CLASS.bar).data($$.barData.bind($$));
+        var contextBarEnter = contextBar.enter().append('path').attr("class", $$.classBar.bind($$)).style("stroke", 'none').style("fill", $$.color);
+        contextBar.exit().transition().duration(durationForExit).style('opacity', 0).remove();
+        $$.contextBar = contextBarEnter.merge(contextBar).style("opacity", $$.initialOpacity.bind($$));
+    };
+    ChartInternal.prototype.redrawBarForSubchart = function (drawBarOnSub, withTransition, duration) {
+        (withTransition ? this.contextBar.transition(Math.random().toString()).duration(duration) : this.contextBar).attr('d', drawBarOnSub).style('opacity', 1);
+    };
+    ChartInternal.prototype.updateLineForSubchart = function (durationForExit) {
+        var $$ = this;
+        var contextLine = $$.context.selectAll('.' + CLASS.lines).selectAll('.' + CLASS.line).data($$.lineData.bind($$));
+        var contextLineEnter = contextLine.enter().append('path').attr('class', $$.classLine.bind($$)).style('stroke', $$.color);
+        contextLine.exit().transition().duration(durationForExit).style('opacity', 0).remove();
+        $$.contextLine = contextLineEnter.merge(contextLine).style("opacity", $$.initialOpacity.bind($$));
+    };
+    ChartInternal.prototype.redrawLineForSubchart = function (drawLineOnSub, withTransition, duration) {
+        (withTransition ? this.contextLine.transition(Math.random().toString()).duration(duration) : this.contextLine).attr("d", drawLineOnSub).style('opacity', 1);
+    };
+    ChartInternal.prototype.updateAreaForSubchart = function (durationForExit) {
+        var $$ = this,
+            d3 = $$.d3;
+        var contextArea = $$.context.selectAll('.' + CLASS.areas).selectAll('.' + CLASS.area).data($$.lineData.bind($$));
+        var contextAreaEnter = contextArea.enter().append('path').attr("class", $$.classArea.bind($$)).style("fill", $$.color).style("opacity", function () {
+            $$.orgAreaOpacity = +d3.select(this).style('opacity');return 0;
+        });
+        contextArea.exit().transition().duration(durationForExit).style('opacity', 0).remove();
+        $$.contextArea = contextAreaEnter.merge(contextArea).style("opacity", 0);
+    };
+    ChartInternal.prototype.redrawAreaForSubchart = function (drawAreaOnSub, withTransition, duration) {
+        (withTransition ? this.contextArea.transition(Math.random().toString()).duration(duration) : this.contextArea).attr("d", drawAreaOnSub).style("fill", this.color).style("opacity", this.orgAreaOpacity);
+    };
+    ChartInternal.prototype.redrawSubchart = function (withSubchart, transitions, duration, durationForExit, areaIndices, barIndices, lineIndices) {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            drawAreaOnSub,
+            drawBarOnSub,
+            drawLineOnSub;
+
+        $$.context.style('visibility', config.subchart_show ? 'visible' : 'hidden');
+
+        // subchart
+        if (config.subchart_show) {
+            // reflect main chart to extent on subchart if zoomed
+            if (d3.event && d3.event.type === 'zoom') {
+                $$.brush.selectionAsValue($$.x.orgDomain());
+            }
+            // update subchart elements if needed
+            if (withSubchart) {
+                // extent rect
+                if (!$$.brush.empty()) {
+                    $$.brush.selectionAsValue($$.x.orgDomain());
+                }
+                // setup drawer - MEMO: this must be called after axis updated
+                drawAreaOnSub = $$.generateDrawArea(areaIndices, true);
+                drawBarOnSub = $$.generateDrawBar(barIndices, true);
+                drawLineOnSub = $$.generateDrawLine(lineIndices, true);
+
+                $$.updateBarForSubchart(duration);
+                $$.updateLineForSubchart(duration);
+                $$.updateAreaForSubchart(duration);
+
+                $$.redrawBarForSubchart(drawBarOnSub, duration, duration);
+                $$.redrawLineForSubchart(drawLineOnSub, duration, duration);
+                $$.redrawAreaForSubchart(drawAreaOnSub, duration, duration);
+            }
+        }
+    };
+    ChartInternal.prototype.redrawForBrush = function () {
+        var $$ = this,
+            x = $$.x,
+            d3 = $$.d3,
+            s;
+        $$.redraw({
+            withTransition: false,
+            withY: $$.config.zoom_rescale,
+            withSubchart: false,
+            withUpdateXDomain: true,
+            withEventRect: false,
+            withDimension: false
+        });
+        // update zoom transation binded to event rect
+        s = d3.event.selection || $$.brush.scale.range();
+        $$.main.select('.' + CLASS.eventRect).call($$.zoom.transform, d3.zoomIdentity.scale($$.width / (s[1] - s[0])).translate(-s[0], 0));
+        $$.config.subchart_onbrush.call($$.api, x.orgDomain());
+    };
+    ChartInternal.prototype.transformContext = function (withTransition, transitions) {
+        var $$ = this,
+            subXAxis;
+        if (transitions && transitions.axisSubX) {
+            subXAxis = transitions.axisSubX;
+        } else {
+            subXAxis = $$.context.select('.' + CLASS.axisX);
+            if (withTransition) {
+                subXAxis = subXAxis.transition();
+            }
+        }
+        $$.context.attr("transform", $$.getTranslate('context'));
+        subXAxis.attr("transform", $$.getTranslate('subx'));
+    };
+    ChartInternal.prototype.getDefaultSelection = function () {
+        var $$ = this,
+            config = $$.config,
+            selection = isFunction(config.axis_x_selection) ? config.axis_x_selection($$.getXDomain($$.data.targets)) : config.axis_x_selection;
+        if ($$.isTimeSeries()) {
+            selection = [$$.parseDate(selection[0]), $$.parseDate(selection[1])];
+        }
+        return selection;
+    };
+
+    ChartInternal.prototype.initText = function () {
+        var $$ = this;
+        $$.main.select('.' + CLASS.chart).append("g").attr("class", CLASS.chartTexts);
+        $$.mainText = $$.d3.selectAll([]);
+    };
+    ChartInternal.prototype.updateTargetsForText = function (targets) {
+        var $$ = this,
+            classChartText = $$.classChartText.bind($$),
+            classTexts = $$.classTexts.bind($$),
+            classFocus = $$.classFocus.bind($$);
+        var mainText = $$.main.select('.' + CLASS.chartTexts).selectAll('.' + CLASS.chartText).data(targets);
+        var mainTextEnter = mainText.enter().append('g').attr('class', classChartText).style('opacity', 0).style("pointer-events", "none");
+        mainTextEnter.append('g').attr('class', classTexts);
+        mainTextEnter.merge(mainText).attr('class', function (d) {
+            return classChartText(d) + classFocus(d);
+        });
+    };
+    ChartInternal.prototype.updateText = function (xForText, yForText, durationForExit) {
+        var $$ = this,
+            config = $$.config,
+            barOrLineData = $$.barOrLineData.bind($$),
+            classText = $$.classText.bind($$);
+        var mainText = $$.main.selectAll('.' + CLASS.texts).selectAll('.' + CLASS.text).data(barOrLineData);
+        var mainTextEnter = mainText.enter().append('text').attr("class", classText).attr('text-anchor', function (d) {
+            return config.axis_rotated ? d.value < 0 ? 'end' : 'start' : 'middle';
+        }).style("stroke", 'none').attr('x', xForText).attr('y', yForText).style("fill", function (d) {
+            return $$.color(d);
+        }).style("fill-opacity", 0);
+        $$.mainText = mainTextEnter.merge(mainText).text(function (d, i, j) {
+            return $$.dataLabelFormat(d.id)(d.value, d.id, i, j);
+        });
+        mainText.exit().transition().duration(durationForExit).style('fill-opacity', 0).remove();
+    };
+    ChartInternal.prototype.redrawText = function (xForText, yForText, forFlow, withTransition, transition) {
+        return [(withTransition ? this.mainText.transition(transition) : this.mainText).attr('x', xForText).attr('y', yForText).style("fill", this.color).style("fill-opacity", forFlow ? 0 : this.opacityForText.bind(this))];
+    };
+    ChartInternal.prototype.getTextRect = function (text, cls, element) {
+        var dummy = this.d3.select('body').append('div').classed('c3', true),
+            svg = dummy.append("svg").style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0),
+            font = this.d3.select(element).style('font'),
+            rect;
+        svg.selectAll('.dummy').data([text]).enter().append('text').classed(cls ? cls : "", true).style('font', font).text(text).each(function () {
+            rect = this.getBoundingClientRect();
+        });
+        dummy.remove();
+        return rect;
+    };
+    ChartInternal.prototype.generateXYForText = function (areaIndices, barIndices, lineIndices, forX) {
+        var $$ = this,
+            getAreaPoints = $$.generateGetAreaPoints(areaIndices, false),
+            getBarPoints = $$.generateGetBarPoints(barIndices, false),
+            getLinePoints = $$.generateGetLinePoints(lineIndices, false),
+            getter = forX ? $$.getXForText : $$.getYForText;
+        return function (d, i) {
+            var getPoints = $$.isAreaType(d) ? getAreaPoints : $$.isBarType(d) ? getBarPoints : getLinePoints;
+            return getter.call($$, getPoints(d, i), d, this);
+        };
+    };
+    ChartInternal.prototype.getXForText = function (points, d, textElement) {
+        var $$ = this,
+            box = textElement.getBoundingClientRect(),
+            xPos,
+            padding;
+        if ($$.config.axis_rotated) {
+            padding = $$.isBarType(d) ? 4 : 6;
+            xPos = points[2][1] + padding * (d.value < 0 ? -1 : 1);
+        } else {
+            xPos = $$.hasType('bar') ? (points[2][0] + points[0][0]) / 2 : points[0][0];
+        }
+        // show labels regardless of the domain if value is null
+        if (d.value === null) {
+            if (xPos > $$.width) {
+                xPos = $$.width - box.width;
+            } else if (xPos < 0) {
+                xPos = 4;
+            }
+        }
+        return xPos;
+    };
+    ChartInternal.prototype.getYForText = function (points, d, textElement) {
+        var $$ = this,
+            box = textElement.getBoundingClientRect(),
+            yPos;
+        if ($$.config.axis_rotated) {
+            yPos = (points[0][0] + points[2][0] + box.height * 0.6) / 2;
+        } else {
+            yPos = points[2][1];
+            if (d.value < 0 || d.value === 0 && !$$.hasPositiveValue) {
+                yPos += box.height;
+                if ($$.isBarType(d) && $$.isSafari()) {
+                    yPos -= 3;
+                } else if (!$$.isBarType(d) && $$.isChrome()) {
+                    yPos += 3;
+                }
+            } else {
+                yPos += $$.isBarType(d) ? -3 : -6;
+            }
+        }
+        // show labels regardless of the domain if value is null
+        if (d.value === null && !$$.config.axis_rotated) {
+            if (yPos < box.height) {
+                yPos = box.height;
+            } else if (yPos > this.height) {
+                yPos = this.height - 4;
+            }
+        }
+        return yPos;
+    };
+
+    ChartInternal.prototype.initTitle = function () {
+        var $$ = this;
+        $$.title = $$.svg.append("text").text($$.config.title_text).attr("class", $$.CLASS.title);
+    };
+    ChartInternal.prototype.redrawTitle = function () {
+        var $$ = this;
+        $$.title.attr("x", $$.xForTitle.bind($$)).attr("y", $$.yForTitle.bind($$));
+    };
+    ChartInternal.prototype.xForTitle = function () {
+        var $$ = this,
+            config = $$.config,
+            position = config.title_position || 'left',
+            x;
+        if (position.indexOf('right') >= 0) {
+            x = $$.currentWidth - $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).width - config.title_padding.right;
+        } else if (position.indexOf('center') >= 0) {
+            x = ($$.currentWidth - $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).width) / 2;
+        } else {
+            // left
+            x = config.title_padding.left;
+        }
+        return x;
+    };
+    ChartInternal.prototype.yForTitle = function () {
+        var $$ = this;
+        return $$.config.title_padding.top + $$.getTextRect($$.title.node().textContent, $$.CLASS.title, $$.title.node()).height;
+    };
+    ChartInternal.prototype.getTitlePadding = function () {
+        var $$ = this;
+        return $$.yForTitle() + $$.config.title_padding.bottom;
+    };
+
+    ChartInternal.prototype.initTooltip = function () {
+        var $$ = this,
+            config = $$.config,
+            i;
+        $$.tooltip = $$.selectChart.style("position", "relative").append("div").attr('class', CLASS.tooltipContainer).style("position", "absolute").style("pointer-events", "none").style("display", "none");
+        // Show tooltip if needed
+        if (config.tooltip_init_show) {
+            if ($$.isTimeSeries() && isString(config.tooltip_init_x)) {
+                config.tooltip_init_x = $$.parseDate(config.tooltip_init_x);
+                for (i = 0; i < $$.data.targets[0].values.length; i++) {
+                    if ($$.data.targets[0].values[i].x - config.tooltip_init_x === 0) {
+                        break;
+                    }
+                }
+                config.tooltip_init_x = i;
+            }
+            $$.tooltip.html(config.tooltip_contents.call($$, $$.data.targets.map(function (d) {
+                return $$.addName(d.values[config.tooltip_init_x]);
+            }), $$.axis.getXAxisTickFormat(), $$.getYFormat($$.hasArcType()), $$.color));
+            $$.tooltip.style("top", config.tooltip_init_position.top).style("left", config.tooltip_init_position.left).style("display", "block");
+        }
+    };
+    ChartInternal.prototype.getTooltipSortFunction = function () {
+        var $$ = this,
+            config = $$.config;
+
+        if (config.data_groups.length === 0 || config.tooltip_order !== undefined) {
+            // if data are not grouped or if an order is specified
+            // for the tooltip values we sort them by their values
+
+            var order = config.tooltip_order;
+            if (order === undefined) {
+                order = config.data_order;
+            }
+
+            var valueOf = function valueOf(obj) {
+                return obj ? obj.value : null;
+            };
+
+            // if data are not grouped, we sort them by their value
+            if (isString(order) && order.toLowerCase() === 'asc') {
+                return function (a, b) {
+                    return valueOf(a) - valueOf(b);
+                };
+            } else if (isString(order) && order.toLowerCase() === 'desc') {
+                return function (a, b) {
+                    return valueOf(b) - valueOf(a);
+                };
+            } else if (isFunction(order)) {
+
+                // if the function is from data_order we need
+                // to wrap the returned function in order to format
+                // the sorted value to the expected format
+
+                var sortFunction = order;
+
+                if (config.tooltip_order === undefined) {
+                    sortFunction = function sortFunction(a, b) {
+                        return order(a ? {
+                            id: a.id,
+                            values: [a]
+                        } : null, b ? {
+                            id: b.id,
+                            values: [b]
+                        } : null);
+                    };
+                }
+
+                return sortFunction;
+            } else if (isArray(order)) {
+                return function (a, b) {
+                    return order.indexOf(a.id) - order.indexOf(b.id);
+                };
+            }
+        } else {
+            // if data are grouped, we follow the order of grouped targets
+            var ids = $$.orderTargets($$.data.targets).map(function (i) {
+                return i.id;
+            });
+
+            // if it was either asc or desc we need to invert the order
+            // returned by orderTargets
+            if ($$.isOrderAsc() || $$.isOrderDesc()) {
+                ids = ids.reverse();
+            }
+
+            return function (a, b) {
+                return ids.indexOf(a.id) - ids.indexOf(b.id);
+            };
+        }
+    };
+    ChartInternal.prototype.getTooltipContent = function (d, defaultTitleFormat, defaultValueFormat, color) {
+        var $$ = this,
+            config = $$.config,
+            titleFormat = config.tooltip_format_title || defaultTitleFormat,
+            nameFormat = config.tooltip_format_name || function (name) {
+            return name;
+        },
+            valueFormat = config.tooltip_format_value || defaultValueFormat,
+            text,
+            i,
+            title,
+            value,
+            name,
+            bgcolor;
+
+        var tooltipSortFunction = this.getTooltipSortFunction();
+        if (tooltipSortFunction) {
+            d.sort(tooltipSortFunction);
+        }
+
+        for (i = 0; i < d.length; i++) {
+            if (!(d[i] && (d[i].value || d[i].value === 0))) {
+                continue;
+            }
+
+            if (!text) {
+                title = sanitise(titleFormat ? titleFormat(d[i].x) : d[i].x);
+                text = "<table class='" + $$.CLASS.tooltip + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + "</th></tr>" : "");
+            }
+
+            value = sanitise(valueFormat(d[i].value, d[i].ratio, d[i].id, d[i].index, d));
+            if (value !== undefined) {
+                // Skip elements when their name is set to null
+                if (d[i].name === null) {
+                    continue;
+                }
+                name = sanitise(nameFormat(d[i].name, d[i].ratio, d[i].id, d[i].index));
+                bgcolor = $$.levelColor ? $$.levelColor(d[i].value) : color(d[i].id);
+
+                text += "<tr class='" + $$.CLASS.tooltipName + "-" + $$.getTargetSelectorSuffix(d[i].id) + "'>";
+                text += "<td class='name'><span style='background-color:" + bgcolor + "'></span>" + name + "</td>";
+                text += "<td class='value'>" + value + "</td>";
+                text += "</tr>";
+            }
+        }
+        return text + "</table>";
+    };
+    ChartInternal.prototype.tooltipPosition = function (dataToShow, tWidth, tHeight, element) {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3;
+        var svgLeft, tooltipLeft, tooltipRight, tooltipTop, chartRight;
+        var forArc = $$.hasArcType(),
+            mouse = d3.mouse(element);
+        // Determin tooltip position
+        if (forArc) {
+            tooltipLeft = ($$.width - ($$.isLegendRight ? $$.getLegendWidth() : 0)) / 2 + mouse[0];
+            tooltipTop = ($$.hasType('gauge') ? $$.height : $$.height / 2) + mouse[1] + 20;
+        } else {
+            svgLeft = $$.getSvgLeft(true);
+            if (config.axis_rotated) {
+                tooltipLeft = svgLeft + mouse[0] + 100;
+                tooltipRight = tooltipLeft + tWidth;
+                chartRight = $$.currentWidth - $$.getCurrentPaddingRight();
+                tooltipTop = $$.x(dataToShow[0].x) + 20;
+            } else {
+                tooltipLeft = svgLeft + $$.getCurrentPaddingLeft(true) + $$.x(dataToShow[0].x) + 20;
+                tooltipRight = tooltipLeft + tWidth;
+                chartRight = svgLeft + $$.currentWidth - $$.getCurrentPaddingRight();
+                tooltipTop = mouse[1] + 15;
+            }
+
+            if (tooltipRight > chartRight) {
+                // 20 is needed for Firefox to keep tooltip width
+                tooltipLeft -= tooltipRight - chartRight + 20;
+            }
+            if (tooltipTop + tHeight > $$.currentHeight) {
+                tooltipTop -= tHeight + 30;
+            }
+        }
+        if (tooltipTop < 0) {
+            tooltipTop = 0;
+        }
+        return {
+            top: tooltipTop,
+            left: tooltipLeft
+        };
+    };
+    ChartInternal.prototype.showTooltip = function (selectedData, element) {
+        var $$ = this,
+            config = $$.config;
+        var tWidth, tHeight, position;
+        var forArc = $$.hasArcType(),
+            dataToShow = selectedData.filter(function (d) {
+            return d && isValue(d.value);
+        }),
+            positionFunction = config.tooltip_position || ChartInternal.prototype.tooltipPosition;
+        if (dataToShow.length === 0 || !config.tooltip_show) {
+            return;
+        }
+        $$.tooltip.html(config.tooltip_contents.call($$, selectedData, $$.axis.getXAxisTickFormat(), $$.getYFormat(forArc), $$.color)).style("display", "block");
+
+        // Get tooltip dimensions
+        tWidth = $$.tooltip.property('offsetWidth');
+        tHeight = $$.tooltip.property('offsetHeight');
+
+        position = positionFunction.call(this, dataToShow, tWidth, tHeight, element);
+        // Set tooltip
+        $$.tooltip.style("top", position.top + "px").style("left", position.left + 'px');
+    };
+    ChartInternal.prototype.hideTooltip = function () {
+        this.tooltip.style("display", "none");
+    };
+
+    ChartInternal.prototype.setTargetType = function (targetIds, type) {
+        var $$ = this,
+            config = $$.config;
+        $$.mapToTargetIds(targetIds).forEach(function (id) {
+            $$.withoutFadeIn[id] = type === config.data_types[id];
+            config.data_types[id] = type;
+        });
+        if (!targetIds) {
+            config.data_type = type;
+        }
+    };
+    ChartInternal.prototype.hasType = function (type, targets) {
+        var $$ = this,
+            types = $$.config.data_types,
+            has = false;
+        targets = targets || $$.data.targets;
+        if (targets && targets.length) {
+            targets.forEach(function (target) {
+                var t = types[target.id];
+                if (t && t.indexOf(type) >= 0 || !t && type === 'line') {
+                    has = true;
+                }
+            });
+        } else if (Object.keys(types).length) {
+            Object.keys(types).forEach(function (id) {
+                if (types[id] === type) {
+                    has = true;
+                }
+            });
+        } else {
+            has = $$.config.data_type === type;
+        }
+        return has;
+    };
+    ChartInternal.prototype.hasArcType = function (targets) {
+        return this.hasType('pie', targets) || this.hasType('donut', targets) || this.hasType('gauge', targets);
+    };
+    ChartInternal.prototype.isLineType = function (d) {
+        var config = this.config,
+            id = isString(d) ? d : d.id;
+        return !config.data_types[id] || ['line', 'spline', 'area', 'area-spline', 'step', 'area-step'].indexOf(config.data_types[id]) >= 0;
+    };
+    ChartInternal.prototype.isStepType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return ['step', 'area-step'].indexOf(this.config.data_types[id]) >= 0;
+    };
+    ChartInternal.prototype.isSplineType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return ['spline', 'area-spline'].indexOf(this.config.data_types[id]) >= 0;
+    };
+    ChartInternal.prototype.isAreaType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return ['area', 'area-spline', 'area-step'].indexOf(this.config.data_types[id]) >= 0;
+    };
+    ChartInternal.prototype.isBarType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return this.config.data_types[id] === 'bar';
+    };
+    ChartInternal.prototype.isScatterType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return this.config.data_types[id] === 'scatter';
+    };
+    ChartInternal.prototype.isPieType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return this.config.data_types[id] === 'pie';
+    };
+    ChartInternal.prototype.isGaugeType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return this.config.data_types[id] === 'gauge';
+    };
+    ChartInternal.prototype.isDonutType = function (d) {
+        var id = isString(d) ? d : d.id;
+        return this.config.data_types[id] === 'donut';
+    };
+    ChartInternal.prototype.isArcType = function (d) {
+        return this.isPieType(d) || this.isDonutType(d) || this.isGaugeType(d);
+    };
+    ChartInternal.prototype.lineData = function (d) {
+        return this.isLineType(d) ? [d] : [];
+    };
+    ChartInternal.prototype.arcData = function (d) {
+        return this.isArcType(d.data) ? [d] : [];
+    };
+    /* not used
+     function scatterData(d) {
+     return isScatterType(d) ? d.values : [];
+     }
+     */
+    ChartInternal.prototype.barData = function (d) {
+        return this.isBarType(d) ? d.values : [];
+    };
+    ChartInternal.prototype.lineOrScatterData = function (d) {
+        return this.isLineType(d) || this.isScatterType(d) ? d.values : [];
+    };
+    ChartInternal.prototype.barOrLineData = function (d) {
+        return this.isBarType(d) || this.isLineType(d) ? d.values : [];
+    };
+
+    ChartInternal.prototype.isSafari = function () {
+        var ua = window.navigator.userAgent;
+        return ua.indexOf('Safari') >= 0 && ua.indexOf('Chrome') < 0;
+    };
+    ChartInternal.prototype.isChrome = function () {
+        var ua = window.navigator.userAgent;
+        return ua.indexOf('Chrome') >= 0;
+    };
+
+    ChartInternal.prototype.initZoom = function () {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            startEvent;
+
+        $$.zoom = d3.zoom().on("start", function () {
+            if (config.zoom_type !== 'scroll') {
+                return;
+            }
+
+            var e = d3.event.sourceEvent;
+            if (e && e.type === "brush") {
+                return;
+            }
+            startEvent = e;
+            config.zoom_onzoomstart.call($$.api, e);
+        }).on("zoom", function () {
+            if (config.zoom_type !== 'scroll') {
+                return;
+            }
+
+            var e = d3.event.sourceEvent;
+            if (e && e.type === "brush") {
+                return;
+            }
+
+            $$.redrawForZoom();
+
+            config.zoom_onzoom.call($$.api, $$.x.orgDomain());
+        }).on('end', function () {
+            if (config.zoom_type !== 'scroll') {
+                return;
+            }
+
+            var e = d3.event.sourceEvent;
+            if (e && e.type === "brush") {
+                return;
+            }
+            // if click, do nothing. otherwise, click interaction will be canceled.
+            if (e && startEvent.clientX === e.clientX && startEvent.clientY === e.clientY) {
+                return;
+            }
+            config.zoom_onzoomend.call($$.api, $$.x.orgDomain());
+        });
+
+        $$.zoom.updateDomain = function () {
+            if (d3.event && d3.event.transform) {
+                $$.x.domain(d3.event.transform.rescaleX($$.subX).domain());
+            }
+            return this;
+        };
+        $$.zoom.updateExtent = function () {
+            this.scaleExtent([1, Infinity]).translateExtent([[0, 0], [$$.width, $$.height]]).extent([[0, 0], [$$.width, $$.height]]);
+            return this;
+        };
+        $$.zoom.update = function () {
+            return this.updateExtent().updateDomain();
+        };
+
+        return $$.zoom.updateExtent();
+    };
+    ChartInternal.prototype.zoomTransform = function (range) {
+        var $$ = this,
+            s = [$$.x(range[0]), $$.x(range[1])];
+        return $$.d3.zoomIdentity.scale($$.width / (s[1] - s[0])).translate(-s[0], 0);
+    };
+
+    ChartInternal.prototype.initDragZoom = function () {
+        var $$ = this;
+        var d3 = $$.d3;
+        var config = $$.config;
+        var context = $$.context = $$.svg;
+        var brushXPos = $$.margin.left + 20.5;
+        var brushYPos = $$.margin.top + 0.5;
+
+        if (!(config.zoom_type === 'drag' && config.zoom_enabled)) {
+            return;
+        }
+
+        var getZoomedDomain = function getZoomedDomain(selection) {
+            return selection && selection.map(function (x) {
+                return $$.x.invert(x);
+            });
+        };
+
+        var brush = $$.dragZoomBrush = d3.brushX().on("start", function () {
+            $$.api.unzoom();
+
+            $$.svg.select("." + CLASS.dragZoom).classed("disabled", false);
+
+            config.zoom_onzoomstart.call($$.api, d3.event.sourceEvent);
+        }).on("brush", function () {
+            config.zoom_onzoom.call($$.api, getZoomedDomain(d3.event.selection));
+        }).on("end", function () {
+            if (d3.event.selection == null) {
+                return;
+            }
+
+            var zoomedDomain = getZoomedDomain(d3.event.selection);
+
+            if (!config.zoom_disableDefaultBehavior) {
+                $$.api.zoom(zoomedDomain);
+            }
+
+            $$.svg.select("." + CLASS.dragZoom).classed("disabled", true);
+
+            config.zoom_onzoomend.call($$.api, zoomedDomain);
+        });
+
+        context.append("g").classed(CLASS.dragZoom, true).attr("clip-path", $$.clipPath).attr("transform", "translate(" + brushXPos + "," + brushYPos + ")").call(brush);
+    };
+
+    ChartInternal.prototype.getZoomDomain = function () {
+        var $$ = this,
+            config = $$.config,
+            d3 = $$.d3,
+            min = d3.min([$$.orgXDomain[0], config.zoom_x_min]),
+            max = d3.max([$$.orgXDomain[1], config.zoom_x_max]);
+        return [min, max];
+    };
+    ChartInternal.prototype.redrawForZoom = function () {
+        var $$ = this,
+            d3 = $$.d3,
+            config = $$.config,
+            zoom = $$.zoom,
+            x = $$.x;
+        if (!config.zoom_enabled) {
+            return;
+        }
+        if ($$.filterTargetsToShow($$.data.targets).length === 0) {
+            return;
+        }
+
+        zoom.update();
+
+        if (config.zoom_disableDefaultBehavior) {
+            return;
+        }
+
+        if ($$.isCategorized() && x.orgDomain()[0] === $$.orgXDomain[0]) {
+            x.domain([$$.orgXDomain[0] - 1e-10, x.orgDomain()[1]]);
+        }
+
+        $$.redraw({
+            withTransition: false,
+            withY: config.zoom_rescale,
+            withSubchart: false,
+            withEventRect: false,
+            withDimension: false
+        });
+
+        if (d3.event.sourceEvent && d3.event.sourceEvent.type === 'mousemove') {
+            $$.cancelClick = true;
+        }
+    };
+
+    return c3;
+
+})));
diff --git a/static/js/c3.min.js b/static/js/c3.min.js
new file mode 100644
index 0000000..a5a21e9
--- /dev/null
+++ b/static/js/c3.min.js
@@ -0,0 +1,2 @@
+/* @license C3.js v0.6.7 | (c) C3 Team and other contributors | http://c3js.org/ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.c3=e()}(this,function(){"use strict";function l(t){var e=this;e.d3=window.d3?window.d3:"undefined"!=typeof require?require("d3"):void 0,e.api=t,e.config=e.getDefaultConfig(),e.data={},e.cache={},e.axes={}}function n(t){var e=this.internal=new l(this);e.loadConfig(t),e.beforeInit(t),e.init(),e.afterInit(t),function e(i,n,r){Object.keys(i).forEach(function(t){n[t]=i[t].bind(r),0<Object.keys(i[t]).length&&e(i[t],n[t],r)})}(n.prototype,this,this)}function i(t,e){var i=this;i.component=t,i.params=e||{},i.d3=t.d3,i.scale=i.d3.scaleLinear(),i.range,i.orient="bottom",i.innerTickSize=6,i.outerTickSize=this.params.withOuterTick?6:0,i.tickPadding=3,i.tickValues=null,i.tickFormat,i.tickArguments,i.tickOffset=0,i.tickCulling=!0,i.tickCentered,i.tickTextCharSize,i.tickTextRotate=i.params.tickTextRotate,i.tickLength,i.axis=i.generateAxis()}i.prototype.axisX=function(t,e,i){t.attr("transform",function(t){return"translate("+Math.ceil(e(t)+i)+", 0)"})},i.prototype.axisY=function(t,e){t.attr("transform",function(t){return"translate(0,"+Math.ceil(e(t))+")"})},i.prototype.scaleExtent=function(t){var e=t[0],i=t[t.length-1];return e<i?[e,i]:[i,e]},i.prototype.generateTicks=function(t){var e,i,n=[];if(t.ticks)return t.ticks.apply(t,this.tickArguments);for(i=t.domain(),e=Math.ceil(i[0]);e<i[1];e++)n.push(e);return 0<n.length&&0<n[0]&&n.unshift(n[0]-(n[1]-n[0])),n},i.prototype.copyScale=function(){var t,e=this,i=e.scale.copy();return e.params.isCategory&&(t=e.scale.domain(),i.domain([t[0],t[1]-1])),i},i.prototype.textFormatted=function(t){var e=this.tickFormat?this.tickFormat(t):t;return void 0!==e?e:""},i.prototype.updateRange=function(){var t=this;return t.range=t.scale.rangeExtent?t.scale.rangeExtent():t.scaleExtent(t.scale.range()),t.range},i.prototype.updateTickTextCharSize=function(t){var a=this;if(a.tickTextCharSize)return a.tickTextCharSize;var o={h:11.5,w:5.5};return t.select("text").text(function(t){return a.textFormatted(t)}).each(function(t){var e=this.getBoundingClientRect(),i=a.textFormatted(t),n=e.height,r=i?e.width/i.length:void 0;n&&r&&(o.h=n,o.w=r)}).text(""),a.tickTextCharSize=o},i.prototype.isVertical=function(){return"left"===this.orient||"right"===this.orient},i.prototype.tspanData=function(t,e,i){var n=this,r=n.params.tickMultiline?n.splitTickText(t,i):[].concat(n.textFormatted(t));return n.params.tickMultiline&&0<n.params.tickMultilineMax&&(r=n.ellipsify(r,n.params.tickMultilineMax)),r.map(function(t){return{index:e,splitted:t,length:r.length}})},i.prototype.splitTickText=function(t,e){var r,a,o,s=this,i=s.textFormatted(t),c=s.params.tickWidth;if("[object Array]"===Object.prototype.toString.call(i))return i;return(!c||c<=0)&&(c=s.isVertical()?95:s.params.isCategory?Math.ceil(e(1)-e(0))-12:110),function t(e,i){a=void 0;for(var n=1;n<i.length;n++)if(" "===i.charAt(n)&&(a=n),r=i.substr(0,n+1),o=s.tickTextCharSize.w*r.length,c<o)return t(e.concat(i.substr(0,a||n)),i.slice(a?a+1:n));return e.concat(i)}([],i+"")},i.prototype.ellipsify=function(t,e){if(t.length<=e)return t;for(var i=t.slice(0,e),n=3,r=e-1;0<=r;r--){var a=i[r].length;if(i[r]=i[r].substr(0,a-n).padEnd(a,"."),(n-=a)<=0)break}return i},i.prototype.updateTickLength=function(){this.tickLength=Math.max(this.innerTickSize,0)+this.tickPadding},i.prototype.lineY2=function(t){var e=this,i=e.scale(t)+(e.tickCentered?0:e.tickOffset);return e.range[0]<i&&i<e.range[1]?e.innerTickSize:0},i.prototype.textY=function(){var t=this.tickTextRotate;return t?11.5-t/15*2.5*(0<t?1:-1):this.tickLength},i.prototype.textTransform=function(){var t=this.tickTextRotate;return t?"rotate("+t+")":""},i.prototype.textTextAnchor=function(){var t=this.tickTextRotate;return t?0<t?"start":"end":"middle"},i.prototype.tspanDx=function(){var t=this.tickTextRotate;return t?8*Math.sin(Math.PI*(t/180)):0},i.prototype.tspanDy=function(t,e){var i=this.tickTextCharSize.h;return 0===e&&(i=this.isVertical()?-((t.length-1)*(this.tickTextCharSize.h/2)-3):".71em"),i},i.prototype.generateAxis=function(){var w=this,v=w.d3,b=w.params;function A(t,m){var S;return t.each(function(){var t,e,i,n=A.g=v.select(this),r=this.__chart__||w.scale,a=this.__chart__=w.copyScale(),o=w.tickValues?w.tickValues:w.generateTicks(a),s=n.selectAll(".tick").data(o,a),c=s.enter().insert("g",".domain").attr("class","tick").style("opacity",1e-6),d=s.exit().remove(),l=s.merge(c);b.isCategory?(w.tickOffset=Math.ceil((a(1)-a(0))/2),e=w.tickCentered?0:w.tickOffset,i=w.tickCentered?w.tickOffset:0):w.tickOffset=e=0,w.updateRange(),w.updateTickLength(),w.updateTickTextCharSize(n.select(".tick"));var u=l.select("line").merge(c.append("line")),h=l.select("text").merge(c.append("text")),g=l.selectAll("text").selectAll("tspan").data(function(t,e){return w.tspanData(t,e,a)}),p=g.enter().append("tspan").merge(g).text(function(t){return t.splitted});g.exit().remove();var f=n.selectAll(".domain").data([0]),_=f.enter().append("path").merge(f).attr("class","domain");switch(w.orient){case"bottom":t=w.axisX,u.attr("x1",e).attr("x2",e).attr("y2",function(t,e){return w.lineY2(t,e)}),h.attr("x",0).attr("y",function(t,e){return w.textY(t,e)}).attr("transform",function(t,e){return w.textTransform(t,e)}).style("text-anchor",function(t,e){return w.textTextAnchor(t,e)}),p.attr("x",0).attr("dy",function(t,e){return w.tspanDy(t,e)}).attr("dx",function(t,e){return w.tspanDx(t,e)}),_.attr("d","M"+w.range[0]+","+w.outerTickSize+"V0H"+w.range[1]+"V"+w.outerTickSize);break;case"top":t=w.axisX,u.attr("x1",e).attr("x2",e).attr("y2",function(t,e){return-1*w.lineY2(t,e)}),h.attr("x",0).attr("y",function(t,e){return-1*w.textY(t,e)-(b.isCategory?2:w.tickLength-2)}).attr("transform",function(t,e){return w.textTransform(t,e)}).style("text-anchor",function(t,e){return w.textTextAnchor(t,e)}),p.attr("x",0).attr("dy",function(t,e){return w.tspanDy(t,e)}).attr("dx",function(t,e){return w.tspanDx(t,e)}),_.attr("d","M"+w.range[0]+","+-w.outerTickSize+"V0H"+w.range[1]+"V"+-w.outerTickSize);break;case"left":t=w.axisY,u.attr("x2",-w.innerTickSize).attr("y1",i).attr("y2",i),h.attr("x",-w.tickLength).attr("y",w.tickOffset).style("text-anchor","end"),p.attr("x",-w.tickLength).attr("dy",function(t,e){return w.tspanDy(t,e)}),_.attr("d","M"+-w.outerTickSize+","+w.range[0]+"H0V"+w.range[1]+"H"+-w.outerTickSize);break;case"right":t=w.axisY,u.attr("x2",w.innerTickSize).attr("y1",i).attr("y2",i),h.attr("x",w.tickLength).attr("y",w.tickOffset).style("text-anchor","start"),p.attr("x",w.tickLength).attr("dy",function(t,e){return w.tspanDy(t,e)}),_.attr("d","M"+w.outerTickSize+","+w.range[0]+"H0V"+w.range[1]+"H"+w.outerTickSize)}if(a.rangeBand){var x=a,y=x.rangeBand()/2;r=a=function(t){return x(t)+y}}else r.rangeBand?r=a:d.call(t,a,w.tickOffset);c.call(t,r,w.tickOffset),S=(m?l.transition(m):l).style("opacity",1).call(t,a,w.tickOffset)}),S}return A.scale=function(t){return arguments.length?(w.scale=t,A):w.scale},A.orient=function(t){return arguments.length?(w.orient=t in{top:1,right:1,bottom:1,left:1}?t+"":"bottom",A):w.orient},A.tickFormat=function(t){return arguments.length?(w.tickFormat=t,A):w.tickFormat},A.tickCentered=function(t){return arguments.length?(w.tickCentered=t,A):w.tickCentered},A.tickOffset=function(){return w.tickOffset},A.tickInterval=function(){var t;return(t=b.isCategory?2*w.tickOffset:(A.g.select("path.domain").node().getTotalLength()-2*w.outerTickSize)/A.g.selectAll("line").size())===1/0?0:t},A.ticks=function(){return arguments.length?(w.tickArguments=arguments,A):w.tickArguments},A.tickCulling=function(t){return arguments.length?(w.tickCulling=t,A):w.tickCulling},A.tickValues=function(t){if("function"==typeof t)w.tickValues=function(){return t(w.scale.domain())};else{if(!arguments.length)return w.tickValues;w.tickValues=t}return A},A};var Y={target:"c3-target",chart:"c3-chart",chartLine:"c3-chart-line",chartLines:"c3-chart-lines",chartBar:"c3-chart-bar",chartBars:"c3-chart-bars",chartText:"c3-chart-text",chartTexts:"c3-chart-texts",chartArc:"c3-chart-arc",chartArcs:"c3-chart-arcs",chartArcsTitle:"c3-chart-arcs-title",chartArcsBackground:"c3-chart-arcs-background",chartArcsGaugeUnit:"c3-chart-arcs-gauge-unit",chartArcsGaugeMax:"c3-chart-arcs-gauge-max",chartArcsGaugeMin:"c3-chart-arcs-gauge-min",selectedCircle:"c3-selected-circle",selectedCircles:"c3-selected-circles",eventRect:"c3-event-rect",eventRects:"c3-event-rects",eventRectsSingle:"c3-event-rects-single",eventRectsMultiple:"c3-event-rects-multiple",zoomRect:"c3-zoom-rect",brush:"c3-brush",dragZoom:"c3-drag-zoom",focused:"c3-focused",defocused:"c3-defocused",region:"c3-region",regions:"c3-regions",title:"c3-title",tooltipContainer:"c3-tooltip-container",tooltip:"c3-tooltip",tooltipName:"c3-tooltip-name",shape:"c3-shape",shapes:"c3-shapes",line:"c3-line",lines:"c3-lines",bar:"c3-bar",bars:"c3-bars",circle:"c3-circle",circles:"c3-circles",arc:"c3-arc",arcLabelLine:"c3-arc-label-line",arcs:"c3-arcs",area:"c3-area",areas:"c3-areas",empty:"c3-empty",text:"c3-text",texts:"c3-texts",gaugeValue:"c3-gauge-value",grid:"c3-grid",gridLines:"c3-grid-lines",xgrid:"c3-xgrid",xgrids:"c3-xgrids",xgridLine:"c3-xgrid-line",xgridLines:"c3-xgrid-lines",xgridFocus:"c3-xgrid-focus",ygrid:"c3-ygrid",ygrids:"c3-ygrids",ygridLine:"c3-ygrid-line",ygridLines:"c3-ygrid-lines",axis:"c3-axis",axisX:"c3-axis-x",axisXLabel:"c3-axis-x-label",axisY:"c3-axis-y",axisYLabel:"c3-axis-y-label",axisY2:"c3-axis-y2",axisY2Label:"c3-axis-y2-label",legendBackground:"c3-legend-background",legendItem:"c3-legend-item",legendItemEvent:"c3-legend-item-event",legendItemTile:"c3-legend-item-tile",legendItemHidden:"c3-legend-item-hidden",legendItemFocused:"c3-legend-item-focused",dragarea:"c3-dragarea",EXPANDED:"_expanded_",SELECTED:"_selected_",INCLUDED:"_included_"},s="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},a=function(t){return Math.ceil(t)+.5},r=function(t){return 10*Math.ceil(t/10)},k=function(t){return t[1]-t[0]},N=function(t,e,i){return D(t[e])?t[e]:i},y=function(t){var e=t.getBoundingClientRect(),i=[t.pathSegList.getItem(0),t.pathSegList.getItem(1)];return{x:i[0].x,y:Math.min(i[0].y,i[1].y),width:e.width,height:e.height}},o=function(t){return Array.isArray(t)},D=function(t){return void 0!==t},u=function(t){return null==t||c(t)&&0===t.length||"object"===(void 0===t?"undefined":s(t))&&0===Object.keys(t).length},h=function(t){return"function"==typeof t},c=function(t){return"string"==typeof t},v=function(t){return void 0===t},P=function(t){return t||0===t},C=function(t){return!u(t)},_=function(t){return"string"==typeof t?t.replace(/</g,"&lt;").replace(/>/g,"&gt;"):t},d=function t(e){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.owner=e,this.d3=e.d3,this.internal=i};d.prototype.init=function(){var t=this.owner,e=t.config,i=t.main;t.axes.x=i.append("g").attr("class",Y.axis+" "+Y.axisX).attr("clip-path",e.axis_x_inner?"":t.clipPathForXAxis).attr("transform",t.getTranslate("x")).style("visibility",e.axis_x_show?"visible":"hidden"),t.axes.x.append("text").attr("class",Y.axisXLabel).attr("transform",e.axis_rotated?"rotate(-90)":"").style("text-anchor",this.textAnchorForXAxisLabel.bind(this)),t.axes.y=i.append("g").attr("class",Y.axis+" "+Y.axisY).attr("clip-path",e.axis_y_inner?"":t.clipPathForYAxis).attr("transform",t.getTranslate("y")).style("visibility",e.axis_y_show?"visible":"hidden"),t.axes.y.append("text").attr("class",Y.axisYLabel).attr("transform",e.axis_rotated?"":"rotate(-90)").style("text-anchor",this.textAnchorForYAxisLabel.bind(this)),t.axes.y2=i.append("g").attr("class",Y.axis+" "+Y.axisY2).attr("transform",t.getTranslate("y2")).style("visibility",e.axis_y2_show?"visible":"hidden"),t.axes.y2.append("text").attr("class",Y.axisY2Label).attr("transform",e.axis_rotated?"":"rotate(-90)").style("text-anchor",this.textAnchorForY2AxisLabel.bind(this))},d.prototype.getXAxis=function(t,e,i,n,r,a,o){var s=this.owner,c=s.config,d={isCategory:s.isCategorized(),withOuterTick:r,tickMultiline:c.axis_x_tick_multiline,tickMultilineMax:c.axis_x_tick_multiline?Number(c.axis_x_tick_multilineMax):0,tickWidth:c.axis_x_tick_width,tickTextRotate:o?0:c.axis_x_tick_rotate,withoutTransition:a},l=new this.internal(this,d).axis.scale(t).orient(e);return s.isTimeSeries()&&n&&"function"!=typeof n&&(n=n.map(function(t){return s.parseDate(t)})),l.tickFormat(i).tickValues(n),s.isCategorized()&&(l.tickCentered(c.axis_x_tick_centered),u(c.axis_x_tick_culling)&&(c.axis_x_tick_culling=!1)),l},d.prototype.updateXAxisTickValues=function(t,e){var i,n=this.owner,r=n.config;return(r.axis_x_tick_fit||r.axis_x_tick_count)&&(i=this.generateTickValues(n.mapTargetsToUniqueXs(t),r.axis_x_tick_count,n.isTimeSeries())),e?e.tickValues(i):(n.xAxis.tickValues(i),n.subXAxis.tickValues(i)),i},d.prototype.getYAxis=function(t,e,i,n,r,a,o){var s=this.owner,c=s.config,d={withOuterTick:r,withoutTransition:a,tickTextRotate:o?0:c.axis_y_tick_rotate},l=new this.internal(this,d).axis.scale(t).orient(e).tickFormat(i);return s.isTimeSeriesY()?l.ticks(c.axis_y_tick_time_type,c.axis_y_tick_time_interval):l.tickValues(n),l},d.prototype.getId=function(t){var e=this.owner.config;return t in e.data_axes?e.data_axes[t]:"y"},d.prototype.getXAxisTickFormat=function(){var e=this.owner,i=e.config,n=e.isTimeSeries()?e.defaultAxisTimeFormat:e.isCategorized()?e.categoryName:function(t){return t};return i.axis_x_tick_format&&(h(i.axis_x_tick_format)?n=i.axis_x_tick_format:e.isTimeSeries()&&(n=function(t){return t?e.axisTimeFormat(i.axis_x_tick_format)(t):""})),h(n)?function(t){return n.call(e,t)}:n},d.prototype.getTickValues=function(t,e){return t||(e?e.tickValues():void 0)},d.prototype.getXAxisTickValues=function(){return this.getTickValues(this.owner.config.axis_x_tick_values,this.owner.xAxis)},d.prototype.getYAxisTickValues=function(){return this.getTickValues(this.owner.config.axis_y_tick_values,this.owner.yAxis)},d.prototype.getY2AxisTickValues=function(){return this.getTickValues(this.owner.config.axis_y2_tick_values,this.owner.y2Axis)},d.prototype.getLabelOptionByAxisId=function(t){var e,i=this.owner.config;return"y"===t?e=i.axis_y_label:"y2"===t?e=i.axis_y2_label:"x"===t&&(e=i.axis_x_label),e},d.prototype.getLabelText=function(t){var e=this.getLabelOptionByAxisId(t);return c(e)?e:e?e.text:null},d.prototype.setLabelText=function(t,e){var i=this.owner.config,n=this.getLabelOptionByAxisId(t);c(n)?"y"===t?i.axis_y_label=e:"y2"===t?i.axis_y2_label=e:"x"===t&&(i.axis_x_label=e):n&&(n.text=e)},d.prototype.getLabelPosition=function(t,e){var i=this.getLabelOptionByAxisId(t),n=i&&"object"===(void 0===i?"undefined":s(i))&&i.position?i.position:e;return{isInner:0<=n.indexOf("inner"),isOuter:0<=n.indexOf("outer"),isLeft:0<=n.indexOf("left"),isCenter:0<=n.indexOf("center"),isRight:0<=n.indexOf("right"),isTop:0<=n.indexOf("top"),isMiddle:0<=n.indexOf("middle"),isBottom:0<=n.indexOf("bottom")}},d.prototype.getXAxisLabelPosition=function(){return this.getLabelPosition("x",this.owner.config.axis_rotated?"inner-top":"inner-right")},d.prototype.getYAxisLabelPosition=function(){return this.getLabelPosition("y",this.owner.config.axis_rotated?"inner-right":"inner-top")},d.prototype.getY2AxisLabelPosition=function(){return this.getLabelPosition("y2",this.owner.config.axis_rotated?"inner-right":"inner-top")},d.prototype.getLabelPositionById=function(t){return"y2"===t?this.getY2AxisLabelPosition():"y"===t?this.getYAxisLabelPosition():this.getXAxisLabelPosition()},d.prototype.textForXAxisLabel=function(){return this.getLabelText("x")},d.prototype.textForYAxisLabel=function(){return this.getLabelText("y")},d.prototype.textForY2AxisLabel=function(){return this.getLabelText("y2")},d.prototype.xForAxisLabel=function(t,e){var i=this.owner;return t?e.isLeft?0:e.isCenter?i.width/2:i.width:e.isBottom?-i.height:e.isMiddle?-i.height/2:0},d.prototype.dxForAxisLabel=function(t,e){return t?e.isLeft?"0.5em":e.isRight?"-0.5em":"0":e.isTop?"-0.5em":e.isBottom?"0.5em":"0"},d.prototype.textAnchorForAxisLabel=function(t,e){return t?e.isLeft?"start":e.isCenter?"middle":"end":e.isBottom?"start":e.isMiddle?"middle":"end"},d.prototype.xForXAxisLabel=function(){return this.xForAxisLabel(!this.owner.config.axis_rotated,this.getXAxisLabelPosition())},d.prototype.xForYAxisLabel=function(){return this.xForAxisLabel(this.owner.config.axis_rotated,this.getYAxisLabelPosition())},d.prototype.xForY2AxisLabel=function(){return this.xForAxisLabel(this.owner.config.axis_rotated,this.getY2AxisLabelPosition())},d.prototype.dxForXAxisLabel=function(){return this.dxForAxisLabel(!this.owner.config.axis_rotated,this.getXAxisLabelPosition())},d.prototype.dxForYAxisLabel=function(){return this.dxForAxisLabel(this.owner.config.axis_rotated,this.getYAxisLabelPosition())},d.prototype.dxForY2AxisLabel=function(){return this.dxForAxisLabel(this.owner.config.axis_rotated,this.getY2AxisLabelPosition())},d.prototype.dyForXAxisLabel=function(){var t=this.owner,e=t.config,i=this.getXAxisLabelPosition();return e.axis_rotated?i.isInner?"1.2em":-25-(t.config.axis_x_inner?0:this.getMaxTickWidth("x")):i.isInner?"-0.5em":e.axis_x_height?e.axis_x_height-10:"3em"},d.prototype.dyForYAxisLabel=function(){var t=this.owner,e=this.getYAxisLabelPosition();return t.config.axis_rotated?e.isInner?"-0.5em":"3em":e.isInner?"1.2em":-10-(t.config.axis_y_inner?0:this.getMaxTickWidth("y")+10)},d.prototype.dyForY2AxisLabel=function(){var t=this.owner,e=this.getY2AxisLabelPosition();return t.config.axis_rotated?e.isInner?"1.2em":"-2.2em":e.isInner?"-0.5em":15+(t.config.axis_y2_inner?0:this.getMaxTickWidth("y2")+15)},d.prototype.textAnchorForXAxisLabel=function(){var t=this.owner;return this.textAnchorForAxisLabel(!t.config.axis_rotated,this.getXAxisLabelPosition())},d.prototype.textAnchorForYAxisLabel=function(){var t=this.owner;return this.textAnchorForAxisLabel(t.config.axis_rotated,this.getYAxisLabelPosition())},d.prototype.textAnchorForY2AxisLabel=function(){var t=this.owner;return this.textAnchorForAxisLabel(t.config.axis_rotated,this.getY2AxisLabelPosition())},d.prototype.getMaxTickWidth=function(t,e){var i,n,r,a,o=this.owner,s=o.config,c=0;return e&&o.currentMaxTickWidths[t]||(o.svg&&(i=o.filterTargetsToShow(o.data.targets),"y"===t?(n=o.y.copy().domain(o.getYDomain(i,"y")),r=this.getYAxis(n,o.yOrient,s.axis_y_tick_format,o.yAxisTickValues,!1,!0,!0)):"y2"===t?(n=o.y2.copy().domain(o.getYDomain(i,"y2")),r=this.getYAxis(n,o.y2Orient,s.axis_y2_tick_format,o.y2AxisTickValues,!1,!0,!0)):(n=o.x.copy().domain(o.getXDomain(i)),r=this.getXAxis(n,o.xOrient,o.xAxisTickFormat,o.xAxisTickValues,!1,!0,!0),this.updateXAxisTickValues(i,r)),(a=o.d3.select("body").append("div").classed("c3",!0)).append("svg").style("visibility","hidden").style("position","fixed").style("top",0).style("left",0).append("g").call(r).each(function(){o.d3.select(this).selectAll("text").each(function(){var t=this.getBoundingClientRect();c<t.width&&(c=t.width)}),a.remove()})),o.currentMaxTickWidths[t]=c<=0?o.currentMaxTickWidths[t]:c),o.currentMaxTickWidths[t]},d.prototype.updateLabels=function(t){var e=this.owner,i=e.main.select("."+Y.axisX+" ."+Y.axisXLabel),n=e.main.select("."+Y.axisY+" ."+Y.axisYLabel),r=e.main.select("."+Y.axisY2+" ."+Y.axisY2Label);(t?i.transition():i).attr("x",this.xForXAxisLabel.bind(this)).attr("dx",this.dxForXAxisLabel.bind(this)).attr("dy",this.dyForXAxisLabel.bind(this)).text(this.textForXAxisLabel.bind(this)),(t?n.transition():n).attr("x",this.xForYAxisLabel.bind(this)).attr("dx",this.dxForYAxisLabel.bind(this)).attr("dy",this.dyForYAxisLabel.bind(this)).text(this.textForYAxisLabel.bind(this)),(t?r.transition():r).attr("x",this.xForY2AxisLabel.bind(this)).attr("dx",this.dxForY2AxisLabel.bind(this)).attr("dy",this.dyForY2AxisLabel.bind(this)).text(this.textForY2AxisLabel.bind(this))},d.prototype.getPadding=function(t,e,i,n){var r="number"==typeof t?t:t[e];return P(r)?"ratio"===t.unit?t[e]*n:this.convertPixelsToAxisPadding(r,n):i},d.prototype.convertPixelsToAxisPadding=function(t,e){var i=this.owner;return e*(t/(i.config.axis_rotated?i.width:i.height))},d.prototype.generateTickValues=function(t,e,i){var n,r,a,o,s,c,d,l=t;if(e)if(1===(n=h(e)?e():e))l=[t[0]];else if(2===n)l=[t[0],t[t.length-1]];else if(2<n){for(o=n-2,r=t[0],s=((a=t[t.length-1])-r)/(o+1),l=[r],c=0;c<o;c++)d=+r+s*(c+1),l.push(i?new Date(d):d);l.push(a)}return i||(l=l.sort(function(t,e){return t-e})),l},d.prototype.generateTransitions=function(t){var e=this.owner.axes;return{axisX:t?e.x.transition().duration(t):e.x,axisY:t?e.y.transition().duration(t):e.y,axisY2:t?e.y2.transition().duration(t):e.y2,axisSubX:t?e.subx.transition().duration(t):e.subx}},d.prototype.redraw=function(t,e){var i=this.owner,n=t?i.d3.transition().duration(t):null;i.axes.x.style("opacity",e?0:1).call(i.xAxis,n),i.axes.y.style("opacity",e?0:1).call(i.yAxis,n),i.axes.y2.style("opacity",e?0:1).call(i.y2Axis,n),i.axes.subx.style("opacity",e?0:1).call(i.subXAxis,n)};var t={version:"0.6.7",chart:{fn:n.prototype,internal:{fn:l.prototype,axis:{fn:d.prototype,internal:{fn:i.prototype}}}},generate:function(t){return new n(t)}};return l.prototype.beforeInit=function(){},l.prototype.afterInit=function(){},l.prototype.init=function(){var t=this,e=t.config;if(t.initParams(),e.data_url)t.convertUrlToData(e.data_url,e.data_mimeType,e.data_headers,e.data_keys,t.initWithData);else if(e.data_json)t.initWithData(t.convertJsonToData(e.data_json,e.data_keys));else if(e.data_rows)t.initWithData(t.convertRowsToData(e.data_rows));else{if(!e.data_columns)throw Error("url or json or rows or columns is required.");t.initWithData(t.convertColumnsToData(e.data_columns))}},l.prototype.initParams=function(){var t=this,e=t.d3,i=t.config;t.clipId="c3-"+ +new Date+"-clip",t.clipIdForXAxis=t.clipId+"-xaxis",t.clipIdForYAxis=t.clipId+"-yaxis",t.clipIdForGrid=t.clipId+"-grid",t.clipIdForSubchart=t.clipId+"-subchart",t.clipPath=t.getClipPath(t.clipId),t.clipPathForXAxis=t.getClipPath(t.clipIdForXAxis),t.clipPathForYAxis=t.getClipPath(t.clipIdForYAxis),t.clipPathForGrid=t.getClipPath(t.clipIdForGrid),t.clipPathForSubchart=t.getClipPath(t.clipIdForSubchart),t.dragStart=null,t.dragging=!1,t.flowing=!1,t.cancelClick=!1,t.mouseover=!1,t.transiting=!1,t.color=t.generateColor(),t.levelColor=t.generateLevelColor(),t.dataTimeParse=(i.data_xLocaltime?e.timeParse:e.utcParse)(t.config.data_xFormat),t.axisTimeFormat=i.axis_x_localtime?e.timeFormat:e.utcFormat,t.defaultAxisTimeFormat=function(t){return t.getMilliseconds()?e.timeFormat(".%L")(t):t.getSeconds()?e.timeFormat(":%S")(t):t.getMinutes()?e.timeFormat("%I:%M")(t):t.getHours()?e.timeFormat("%I 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window.SVGPathSegLinetoHorizontalAbs(void 0,t)},window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalRel=function(t){return new window.SVGPathSegLinetoHorizontalRel(void 0,t)},window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalAbs=function(t){return new window.SVGPathSegLinetoVerticalAbs(void 0,t)},window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalRel=function(t){return new window.SVGPathSegLinetoVerticalRel(void 0,t)},window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothAbs=function(t,e,i,n){return new window.SVGPathSegCurvetoCubicSmoothAbs(void 0,t,e,i,n)},window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothRel=function(t,e,i,n){return new window.SVGPathSegCurvetoCubicSmoothRel(void 0,t,e,i,n)},window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothAbs=function(t,e){return new window.SVGPathSegCurvetoQuadraticSmoothAbs(void 0,t,e)},window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothRel=function(t,e){return new window.SVGPathSegCurvetoQuadraticSmoothRel(void 0,t,e)},"getPathSegAtLength"in window.SVGPathElement.prototype||(window.SVGPathElement.prototype.getPathSegAtLength=function(t){if(void 0===t||!isFinite(t))throw"Invalid arguments.";var e=document.createElementNS("http://www.w3.org/2000/svg","path");e.setAttribute("d",this.getAttribute("d"));var i=e.pathSegList.numberOfItems-1;if(i<=0)return 0;do{if(e.pathSegList.removeItem(i),t>e.getTotalLength())break;i--}while(0<i);return i})),"SVGPathSegList"in window||(window.SVGPathSegList=function(t){this._pathElement=t,this._list=this._parsePath(this._pathElement.getAttribute("d")),this._mutationObserverConfig={attributes:!0,attributeFilter:["d"]},this._pathElementMutationObserver=new 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e=!1;t.forEach(function(t){"d"==t.attributeName&&(e=!0)}),e&&(this._list=this._parsePath(this._pathElement.getAttribute("d")))}},window.SVGPathSegList.prototype._writeListToPath=function(){this._pathElementMutationObserver.disconnect(),this._pathElement.setAttribute("d",window.SVGPathSegList._pathSegArrayAsString(this._list)),this._pathElementMutationObserver.observe(this._pathElement,this._mutationObserverConfig)},window.SVGPathSegList.prototype.segmentChanged=function(t){this._writeListToPath()},window.SVGPathSegList.prototype.clear=function(){this._checkPathSynchronizedToList(),this._list.forEach(function(t){t._owningPathSegList=null}),this._list=[],this._writeListToPath()},window.SVGPathSegList.prototype.initialize=function(t){return this._checkPathSynchronizedToList(),this._list=[t],(t._owningPathSegList=this)._writeListToPath(),t},window.SVGPathSegList.prototype._checkValidIndex=function(t){if(isNaN(t)||t<0||t>=this.numberOfItems)throw"INDEX_SIZE_ERR"},window.SVGPathSegList.prototype.getItem=function(t){return this._checkPathSynchronizedToList(),this._checkValidIndex(t),this._list[t]},window.SVGPathSegList.prototype.insertItemBefore=function(t,e){return this._checkPathSynchronizedToList(),e>this.numberOfItems&&(e=this.numberOfItems),t._owningPathSegList&&(t=t.clone()),this._list.splice(e,0,t),(t._owningPathSegList=this)._writeListToPath(),t},window.SVGPathSegList.prototype.replaceItem=function(t,e){return this._checkPathSynchronizedToList(),t._owningPathSegList&&(t=t.clone()),this._checkValidIndex(e),((this._list[e]=t)._owningPathSegList=this)._writeListToPath(),t},window.SVGPathSegList.prototype.removeItem=function(t){this._checkPathSynchronizedToList(),this._checkValidIndex(t);var e=this._list[t];return this._list.splice(t,1),this._writeListToPath(),e},window.SVGPathSegList.prototype.appendItem=function(t){return this._checkPathSynchronizedToList(),t._owningPathSegList&&(t=t.clone()),this._list.push(t),(t._owningPathSegList=this)._writeListToPath(),t},window.SVGPathSegList._pathSegArrayAsString=function(t){var e="",i=!0;return t.forEach(function(t){i?(i=!1,e+=t._asPathString()):e+=" "+t._asPathString()}),e},window.SVGPathSegList.prototype._parsePath=function(t){if(!t||0==t.length)return[];var n=this,e=function(){this.pathSegList=[]};e.prototype.appendSegment=function(t){this.pathSegList.push(t)};var i=function(t){this._string=t,this._currentIndex=0,this._endIndex=this._string.length,this._previousCommand=window.SVGPathSeg.PATHSEG_UNKNOWN,this._skipOptionalSpaces()};i.prototype._isCurrentSpace=function(){var t=this._string[this._currentIndex];return t<=" "&&(" 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window.SVGPathSeg.PATHSEG_MOVETO_REL;case"L":return window.SVGPathSeg.PATHSEG_LINETO_ABS;case"l":return window.SVGPathSeg.PATHSEG_LINETO_REL;case"C":return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS;case"c":return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL;case"Q":return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS;case"q":return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL;case"A":return window.SVGPathSeg.PATHSEG_ARC_ABS;case"a":return window.SVGPathSeg.PATHSEG_ARC_REL;case"H":return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS;case"h":return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL;case"V":return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS;case"v":return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL;case"S":return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS;case"s":return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL;case"T":return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS;case"t":return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL;default:return window.SVGPathSeg.PATHSEG_UNKNOWN}},i.prototype._nextCommandHelper=function(t,e){return("+"==t||"-"==t||"."==t||"0"<=t&&t<="9")&&e!=window.SVGPathSeg.PATHSEG_CLOSEPATH?e==window.SVGPathSeg.PATHSEG_MOVETO_ABS?window.SVGPathSeg.PATHSEG_LINETO_ABS:e==window.SVGPathSeg.PATHSEG_MOVETO_REL?window.SVGPathSeg.PATHSEG_LINETO_REL:e:window.SVGPathSeg.PATHSEG_UNKNOWN},i.prototype.initialCommandIsMoveTo=function(){if(!this.hasMoreData())return!0;var t=this.peekSegmentType();return t==window.SVGPathSeg.PATHSEG_MOVETO_ABS||t==window.SVGPathSeg.PATHSEG_MOVETO_REL},i.prototype._parseNumber=function(){var t=0,e=0,i=1,n=0,r=1,a=1,o=this._currentIndex;if(this._skipOptionalSpaces(),this._currentIndex<this._endIndex&&"+"==this._string.charAt(this._currentIndex)?this._currentIndex++:this._currentIndex<this._endIndex&&"-"==this._string.charAt(this._currentIndex)&&(this._currentIndex++,r=-1),!(this._currentIndex==this._endIndex||(this._string.charAt(this._currentIndex)<"0"||"9"<this._string.charAt(this._currentIndex))&&"."!=this._string.charAt(this._currentIndex))){for(var s=this._currentIndex;this._currentIndex<this._endIndex&&"0"<=this._string.charAt(this._currentIndex)&&this._string.charAt(this._currentIndex)<="9";)this._currentIndex++;if(this._currentIndex!=s)for(var c=this._currentIndex-1,d=1;s<=c;)e+=d*(this._string.charAt(c--)-"0"),d*=10;if(this._currentIndex<this._endIndex&&"."==this._string.charAt(this._currentIndex)){if(this._currentIndex++,this._currentIndex>=this._endIndex||this._string.charAt(this._currentIndex)<"0"||"9"<this._string.charAt(this._currentIndex))return;for(;this._currentIndex<this._endIndex&&"0"<=this._string.charAt(this._currentIndex)&&this._string.charAt(this._currentIndex)<="9";)i*=10,n+=(this._string.charAt(this._currentIndex)-"0")/i,this._currentIndex+=1}if(this._currentIndex!=o&&this._currentIndex+1<this._endIndex&&("e"==this._string.charAt(this._currentIndex)||"E"==this._string.charAt(this._currentIndex))&&"x"!=this._string.charAt(this._currentIndex+1)&&"m"!=this._string.charAt(this._currentIndex+1)){if(this._currentIndex++,"+"==this._string.charAt(this._currentIndex)?this._currentIndex++:"-"==this._string.charAt(this._currentIndex)&&(this._currentIndex++,a=-1),this._currentIndex>=this._endIndex||this._string.charAt(this._currentIndex)<"0"||"9"<this._string.charAt(this._currentIndex))return;for(;this._currentIndex<this._endIndex&&"0"<=this._string.charAt(this._currentIndex)&&this._string.charAt(this._currentIndex)<="9";)t*=10,t+=this._string.charAt(this._currentIndex)-"0",this._currentIndex++}var l=e+n;if(l*=r,t&&(l*=Math.pow(10,a*t)),o!=this._currentIndex)return this._skipOptionalSpacesOrDelimiter(),l}},i.prototype._parseArcFlag=function(){if(!(this._currentIndex>=this._endIndex)){var t=!1,e=this._string.charAt(this._currentIndex++);if("0"==e)t=!1;else{if("1"!=e)return;t=!0}return this._skipOptionalSpacesOrDelimiter(),t}},i.prototype.parseSegment=function(){var t=this._string[this._currentIndex],e=this._pathSegTypeFromChar(t);if(e==window.SVGPathSeg.PATHSEG_UNKNOWN){if(this._previousCommand==window.SVGPathSeg.PATHSEG_UNKNOWN)return null;if((e=this._nextCommandHelper(t,this._previousCommand))==window.SVGPathSeg.PATHSEG_UNKNOWN)return null}else this._currentIndex++;switch(this._previousCommand=e){case window.SVGPathSeg.PATHSEG_MOVETO_REL:return new window.SVGPathSegMovetoRel(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_MOVETO_ABS:return new window.SVGPathSegMovetoAbs(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_REL:return new window.SVGPathSegLinetoRel(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_ABS:return new window.SVGPathSegLinetoAbs(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:return new window.SVGPathSegLinetoHorizontalRel(n,this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:return new window.SVGPathSegLinetoHorizontalAbs(n,this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:return new window.SVGPathSegLinetoVerticalRel(n,this._parseNumber());case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:return new window.SVGPathSegLinetoVerticalAbs(n,this._parseNumber());case window.SVGPathSeg.PATHSEG_CLOSEPATH:return this._skipOptionalSpaces(),new window.SVGPathSegClosePath(n);case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:var i={x1:this._parseNumber(),y1:this._parseNumber(),x2:this._parseNumber(),y2:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()};return new window.SVGPathSegCurvetoCubicRel(n,i.x,i.y,i.x1,i.y1,i.x2,i.y2);case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:return i={x1:this._parseNumber(),y1:this._parseNumber(),x2:this._parseNumber(),y2:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegCurvetoCubicAbs(n,i.x,i.y,i.x1,i.y1,i.x2,i.y2);case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:return i={x2:this._parseNumber(),y2:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegCurvetoCubicSmoothRel(n,i.x,i.y,i.x2,i.y2);case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:return i={x2:this._parseNumber(),y2:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegCurvetoCubicSmoothAbs(n,i.x,i.y,i.x2,i.y2);case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:return i={x1:this._parseNumber(),y1:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegCurvetoQuadraticRel(n,i.x,i.y,i.x1,i.y1);case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:return i={x1:this._parseNumber(),y1:this._parseNumber(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegCurvetoQuadraticAbs(n,i.x,i.y,i.x1,i.y1);case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:return new window.SVGPathSegCurvetoQuadraticSmoothRel(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:return new window.SVGPathSegCurvetoQuadraticSmoothAbs(n,this._parseNumber(),this._parseNumber());case window.SVGPathSeg.PATHSEG_ARC_REL:return i={x1:this._parseNumber(),y1:this._parseNumber(),arcAngle:this._parseNumber(),arcLarge:this._parseArcFlag(),arcSweep:this._parseArcFlag(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegArcRel(n,i.x,i.y,i.x1,i.y1,i.arcAngle,i.arcLarge,i.arcSweep);case window.SVGPathSeg.PATHSEG_ARC_ABS:return i={x1:this._parseNumber(),y1:this._parseNumber(),arcAngle:this._parseNumber(),arcLarge:this._parseArcFlag(),arcSweep:this._parseArcFlag(),x:this._parseNumber(),y:this._parseNumber()},new window.SVGPathSegArcAbs(n,i.x,i.y,i.x1,i.y1,i.arcAngle,i.arcLarge,i.arcSweep);default:throw"Unknown path seg type."}};var r=new e,a=new i(t);if(!a.initialCommandIsMoveTo())return[];for(;a.hasMoreData();){var o=a.parseSegment();if(!o)return[];r.appendSegment(o)}return r.pathSegList}),String.prototype.padEnd||(String.prototype.padEnd=function(t,e){return t>>=0,e=String(void 0!==e?e:" "),this.length>t?String(this):((t-=this.length)>e.length&&(e+=e.repeat(t/e.length)),String(this)+e.slice(0,t))}),(n.prototype.axis=function(){}).labels=function(e){var 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o?(a.pie(a.filterTargetsToShow(a.data.targets)).forEach(function(t){s||t.data.id!==e.data.id||(s=!0,(e=t).index=c),c++}),isNaN(e.startAngle)&&(e.startAngle=0),isNaN(e.endAngle)&&(e.endAngle=e.startAngle),a.isGaugeType(e.data)&&(t=o.gauge_min,i=o.gauge_max,n=Math.PI*(o.gauge_fullCircle?2:1)/(i-t),r=e.value<t?0:e.value<i?e.value-t:i-t,e.startAngle=o.gauge_startingAngle,e.endAngle=e.startAngle+n*r),s?e:null):null},l.prototype.getSvgArc=function(){var n=this,e=n.hasType("gauge"),i=n.gaugeArcWidth/n.filterTargetsToShow(n.data.targets).length,r=n.d3.arc().outerRadius(function(t){return e?n.radius-i*t.index:n.radius}).innerRadius(function(t){return e?n.radius-i*(t.index+1):n.innerRadius}),t=function(t,e){var i;return e?r(t):(i=n.updateAngle(t))?r(i):"M 0 0"};return t.centroid=r.centroid,t},l.prototype.getSvgArcExpanded=function(e){e=e||1;var i=this,n=i.hasType("gauge"),r=i.gaugeArcWidth/i.filterTargetsToShow(i.data.targets).length,a=Math.min(i.radiusExpanded*e-i.radius,.8*r-100*(1-e)),o=i.d3.arc().outerRadius(function(t){return n?i.radius-r*t.index+a:i.radiusExpanded*e}).innerRadius(function(t){return n?i.radius-r*(t.index+1):i.innerRadius});return function(t){var e=i.updateAngle(t);return e?o(e):"M 0 0"}},l.prototype.getArc=function(t,e,i){return i||this.isArcType(t.data)?this.svgArc(t,e):"M 0 0"},l.prototype.transformForArcLabel=function(t){var e,i,n,r,a,o=this,s=o.config,c=o.updateAngle(t),d="",l=o.hasType("gauge");if(c&&!l)e=this.svgArc.centroid(c),i=isNaN(e[0])?0:e[0],n=isNaN(e[1])?0:e[1],r=Math.sqrt(i*i+n*n),d="translate("+i*(a=o.hasType("donut")&&s.donut_label_ratio?h(s.donut_label_ratio)?s.donut_label_ratio(t,o.radius,r):s.donut_label_ratio:o.hasType("pie")&&s.pie_label_ratio?h(s.pie_label_ratio)?s.pie_label_ratio(t,o.radius,r):s.pie_label_ratio:o.radius&&r?(.375<36/o.radius?1.175-36/o.radius:.8)*o.radius/r:0)+","+n*a+")";else if(c&&l&&1<o.filterTargetsToShow(o.data.targets).length){var u=Math.sin(c.endAngle-Math.PI/2);d="translate("+(i=Math.cos(c.endAngle-Math.PI/2)*(o.radiusExpanded+25))+","+(n=u*(o.radiusExpanded+15-Math.abs(10*u))+3)+")"}return d},l.prototype.getArcRatio=function(t){var e=this.config,i=Math.PI*(this.hasType("gauge")&&!e.gauge_fullCircle?1:2);return t?(t.endAngle-t.startAngle)/i:null},l.prototype.convertToArcData=function(t){return 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e,i=this;i.transiting?e=window.setInterval(function(){i.transiting||(window.clearInterval(e),0<i.legend.selectAll(".c3-legend-item-focused").size()&&i.expandArc(t))},10):(t=i.mapToTargetIds(t),i.svg.selectAll(i.selectorTargets(t,"."+Y.chartArc)).each(function(t){i.shouldExpand(t.data.id)&&i.d3.select(this).selectAll("path").transition().duration(i.expandDuration(t.data.id)).attr("d",i.svgArcExpanded).transition().duration(2*i.expandDuration(t.data.id)).attr("d",i.svgArcExpandedSub).each(function(t){i.isDonutType(t.data)})}))},l.prototype.unexpandArc=function(t){var e=this;e.transiting||(t=e.mapToTargetIds(t),e.svg.selectAll(e.selectorTargets(t,"."+Y.chartArc)).selectAll("path").transition().duration(function(t){return e.expandDuration(t.data.id)}).attr("d",e.svgArc),e.svg.selectAll("."+Y.arc))},l.prototype.expandDuration=function(t){var e=this.config;return this.isDonutType(t)?e.donut_expand_duration:this.isGaugeType(t)?e.gauge_expand_duration:this.isPieType(t)?e.pie_expand_duration:50},l.prototype.shouldExpand=function(t){var e=this.config;return this.isDonutType(t)&&e.donut_expand||this.isGaugeType(t)&&e.gauge_expand||this.isPieType(t)&&e.pie_expand},l.prototype.shouldShowArcLabel=function(){var t=this.config,e=!0;return this.hasType("donut")?e=t.donut_label_show:this.hasType("pie")&&(e=t.pie_label_show),e},l.prototype.meetsArcLabelThreshold=function(t){var e=this.config;return(this.hasType("donut")?e.donut_label_threshold:e.pie_label_threshold)<=t},l.prototype.getArcLabelFormat=function(){var t=this.config,e=t.pie_label_format;return this.hasType("gauge")?e=t.gauge_label_format:this.hasType("donut")&&(e=t.donut_label_format),e},l.prototype.getGaugeLabelExtents=function(){return this.config.gauge_label_extents},l.prototype.getArcTitle=function(){return this.hasType("donut")?this.config.donut_title:""},l.prototype.updateTargetsForArc=function(t){var e,i=this,n=i.main,r=i.classChartArc.bind(i),a=i.classArcs.bind(i),o=i.classFocus.bind(i);(e=n.select("."+Y.chartArcs).selectAll("."+Y.chartArc).data(i.pie(t)).attr("class",function(t){return r(t)+o(t.data)}).enter().append("g").attr("class",r)).append("g").attr("class",a),e.append("text").attr("dy",i.hasType("gauge")?"-.1em":".35em").style("opacity",0).style("text-anchor","middle").style("pointer-events","none")},l.prototype.initArc=function(){var t=this;t.arcs=t.main.select("."+Y.chart).append("g").attr("class",Y.chartArcs).attr("transform",t.getTranslate("arc")),t.arcs.append("text").attr("class",Y.chartArcsTitle).style("text-anchor","middle").text(t.getArcTitle())},l.prototype.redrawArc=function(t,e,i){var n,r,a,o,l=this,u=l.d3,s=l.config,c=l.main,d=l.hasType("gauge");if(r=(n=c.selectAll("."+Y.arcs).selectAll("."+Y.arc).data(l.arcData.bind(l))).enter().append("path").attr("class",l.classArc.bind(l)).style("fill",function(t){return l.color(t.data)}).style("cursor",function(t){return s.interaction_enabled&&s.data_selection_isselectable(t)?"pointer":null}).each(function(t){l.isGaugeType(t.data)&&(t.startAngle=t.endAngle=s.gauge_startingAngle),this._current=t}).merge(n),d&&(o=(a=c.selectAll("."+Y.arcs).selectAll("."+Y.arcLabelLine).data(l.arcData.bind(l))).enter().append("rect").attr("class",function(t){return Y.arcLabelLine+" "+Y.target+" "+Y.target+"-"+t.data.id}).merge(a),1===l.filterTargetsToShow(l.data.targets).length?o.style("display","none"):o.style("fill",function(t){return 0<s.color_pattern.length?l.levelColor(t.data.values[0].value):l.color(t.data)}).style("display",s.gauge_labelLine_show?"":"none").each(function(t){var e=0,i=0,n=0,r="";if(l.hiddenTargetIds.indexOf(t.data.id)<0){var a=l.updateAngle(t),o=l.gaugeArcWidth/l.filterTargetsToShow(l.data.targets).length*(a.index+1),s=a.endAngle-Math.PI/2,c=l.radius-o,d=s-(0===c?0:1/c);e=l.radiusExpanded-l.radius+o,i=Math.cos(d)*c,n=Math.sin(d)*c,r="rotate("+180*s/Math.PI+", "+i+", "+n+")"}u.select(this).attr("x",i).attr("y",n).attr("width",e).attr("height",2).attr("transform",r).style("stroke-dasharray","0, "+(e+2)+", 0")})),r.attr("transform",function(t){return!l.isGaugeType(t.data)&&i?"scale(0)":""}).on("mouseover",s.interaction_enabled?function(t){var e,i;l.transiting||(e=l.updateAngle(t))&&(i=l.convertToArcData(e),l.expandArc(e.data.id),l.api.focus(e.data.id),l.toggleFocusLegend(e.data.id,!0),l.config.data_onmouseover(i,this))}:null).on("mousemove",s.interaction_enabled?function(t){var e,i=l.updateAngle(t);i&&(e=[l.convertToArcData(i)],l.showTooltip(e,this))}:null).on("mouseout",s.interaction_enabled?function(t){var e,i;l.transiting||(e=l.updateAngle(t))&&(i=l.convertToArcData(e),l.unexpandArc(e.data.id),l.api.revert(),l.revertLegend(),l.hideTooltip(),l.config.data_onmouseout(i,this))}:null).on("click",s.interaction_enabled?function(t,e){var i,n=l.updateAngle(t);n&&(i=l.convertToArcData(n),l.toggleShape&&l.toggleShape(this,i,e),l.config.data_onclick.call(l.api,i,this))}:null).each(function(){l.transiting=!0}).transition().duration(t).attrTween("d",function(i){var n,t=l.updateAngle(i);return t?(isNaN(this._current.startAngle)&&(this._current.startAngle=0),isNaN(this._current.endAngle)&&(this._current.endAngle=this._current.startAngle),n=u.interpolate(this._current,t),this._current=n(0),function(t){var e=n(t);return e.data=i.data,l.getArc(e,!0)}):function(){return"M 0 0"}}).attr("transform",i?"scale(1)":"").style("fill",function(t){return l.levelColor?l.levelColor(t.data.values[0].value):l.color(t.data.id)}).call(l.endall,function(){l.transiting=!1}),n.exit().transition().duration(e).style("opacity",0).remove(),c.selectAll("."+Y.chartArc).select("text").style("opacity",0).attr("class",function(t){return l.isGaugeType(t.data)?Y.gaugeValue:""}).text(l.textForArcLabel.bind(l)).attr("transform",l.transformForArcLabel.bind(l)).style("font-size",function(t){return l.isGaugeType(t.data)&&1===l.filterTargetsToShow(l.data.targets).length?Math.round(l.radius/5)+"px":""}).transition().duration(t).style("opacity",function(t){return l.isTargetToShow(t.data.id)&&l.isArcType(t.data)?1:0}),c.select("."+Y.chartArcsTitle).style("opacity",l.hasType("donut")||d?1:0),d){var h=0,g=l.arcs.select("g."+Y.chartArcsBackground).selectAll("path."+Y.chartArcsBackground).data(l.data.targets);g.enter().append("path").attr("class",function(t,e){return Y.chartArcsBackground+" 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t=this.arcs;this.hasType("gauge")&&(t.append("g").attr("class",Y.chartArcsBackground),t.append("text").attr("class",Y.chartArcsGaugeUnit).style("text-anchor","middle").style("pointer-events","none"),t.append("text").attr("class",Y.chartArcsGaugeMin).style("text-anchor","middle").style("pointer-events","none"),t.append("text").attr("class",Y.chartArcsGaugeMax).style("text-anchor","middle").style("pointer-events","none"))},l.prototype.getGaugeLabelHeight=function(){return this.config.gauge_label_show?20:0},l.prototype.hasCaches=function(t){for(var e=0;e<t.length;e++)if(!(t[e]in this.cache))return!1;return!0},l.prototype.addCache=function(t,e){this.cache[t]=this.cloneTarget(e)},l.prototype.getCaches=function(t){var e,i=[];for(e=0;e<t.length;e++)t[e]in this.cache&&i.push(this.cloneTarget(this.cache[t[e]]));return i},l.prototype.categoryName=function(t){var e=this.config;return t<e.axis_x_categories.length?e.axis_x_categories[t]:t},l.prototype.generateTargetClass=function(t){return t||0===t?("-"+t).replace(/\s/g,"-"):""},l.prototype.generateClass=function(t,e){return" "+t+" "+t+this.generateTargetClass(e)},l.prototype.classText=function(t){return this.generateClass(Y.text,t.index)},l.prototype.classTexts=function(t){return this.generateClass(Y.texts,t.id)},l.prototype.classShape=function(t){return this.generateClass(Y.shape,t.index)},l.prototype.classShapes=function(t){return this.generateClass(Y.shapes,t.id)},l.prototype.classLine=function(t){return this.classShape(t)+this.generateClass(Y.line,t.id)},l.prototype.classLines=function(t){return this.classShapes(t)+this.generateClass(Y.lines,t.id)},l.prototype.classCircle=function(t){return this.classShape(t)+this.generateClass(Y.circle,t.index)},l.prototype.classCircles=function(t){return this.classShapes(t)+this.generateClass(Y.circles,t.id)},l.prototype.classBar=function(t){return this.classShape(t)+this.generateClass(Y.bar,t.index)},l.prototype.classBars=function(t){return this.classShapes(t)+this.generateClass(Y.bars,t.id)},l.prototype.classArc=function(t){return this.classShape(t.data)+this.generateClass(Y.arc,t.data.id)},l.prototype.classArcs=function(t){return this.classShapes(t.data)+this.generateClass(Y.arcs,t.data.id)},l.prototype.classArea=function(t){return this.classShape(t)+this.generateClass(Y.area,t.id)},l.prototype.classAreas=function(t){return this.classShapes(t)+this.generateClass(Y.areas,t.id)},l.prototype.classRegion=function(t,e){return this.generateClass(Y.region,e)+" "+("class"in t?t.class:"")},l.prototype.classEvent=function(t){return this.generateClass(Y.eventRect,t.index)},l.prototype.classTarget=function(t){var e=this.config.data_classes[t],i="";return e&&(i=" "+Y.target+"-"+e),this.generateClass(Y.target,t)+i},l.prototype.classFocus=function(t){return this.classFocused(t)+this.classDefocused(t)},l.prototype.classFocused=function(t){return" "+(0<=this.focusedTargetIds.indexOf(t.id)?Y.focused:"")},l.prototype.classDefocused=function(t){return" "+(0<=this.defocusedTargetIds.indexOf(t.id)?Y.defocused:"")},l.prototype.classChartText=function(t){return Y.chartText+this.classTarget(t.id)},l.prototype.classChartLine=function(t){return Y.chartLine+this.classTarget(t.id)},l.prototype.classChartBar=function(t){return Y.chartBar+this.classTarget(t.id)},l.prototype.classChartArc=function(t){return Y.chartArc+this.classTarget(t.data.id)},l.prototype.getTargetSelectorSuffix=function(t){return this.generateTargetClass(t).replace(/([?!@#$%^&*()_=+,.<>'":;\[\]\/|~`{}\\])/g,"\\$1")},l.prototype.selectorTarget=function(t,e){return(e||"")+"."+Y.target+this.getTargetSelectorSuffix(t)},l.prototype.selectorTargets=function(t,e){var i=this;return(t=t||[]).length?t.map(function(t){return i.selectorTarget(t,e)}):null},l.prototype.selectorLegend=function(t){return"."+Y.legendItem+this.getTargetSelectorSuffix(t)},l.prototype.selectorLegends=function(t){var e=this;return t&&t.length?t.map(function(t){return e.selectorLegend(t)}):null},l.prototype.getClipPath=function(t){return"url("+(0<=window.navigator.appVersion.toLowerCase().indexOf("msie 9.")?"":document.URL.split("#")[0])+"#"+t+")"},l.prototype.appendClip=function(t,e){return t.append("clipPath").attr("id",e).append("rect")},l.prototype.getAxisClipX=function(t){var e=Math.max(30,this.margin.left);return t?-(1+e):-(e-1)},l.prototype.getAxisClipY=function(t){return t?-20:-this.margin.top},l.prototype.getXAxisClipX=function(){return this.getAxisClipX(!this.config.axis_rotated)},l.prototype.getXAxisClipY=function(){return this.getAxisClipY(!this.config.axis_rotated)},l.prototype.getYAxisClipX=function(){return this.config.axis_y_inner?-1:this.getAxisClipX(this.config.axis_rotated)},l.prototype.getYAxisClipY=function(){return this.getAxisClipY(this.config.axis_rotated)},l.prototype.getAxisClipWidth=function(t){var e=Math.max(30,this.margin.left),i=Math.max(30,this.margin.right);return t?this.width+2+e+i:this.margin.left+20},l.prototype.getAxisClipHeight=function(t){return(t?this.margin.bottom:this.margin.top+this.height)+20},l.prototype.getXAxisClipWidth=function(){return this.getAxisClipWidth(!this.config.axis_rotated)},l.prototype.getXAxisClipHeight=function(){return this.getAxisClipHeight(!this.config.axis_rotated)},l.prototype.getYAxisClipWidth=function(){return this.getAxisClipWidth(this.config.axis_rotated)+(this.config.axis_y_inner?20:0)},l.prototype.getYAxisClipHeight=function(){return this.getAxisClipHeight(this.config.axis_rotated)},l.prototype.generateColor=function(){var t=this.config,e=this.d3,n=t.data_colors,r=C(t.color_pattern)?t.color_pattern:e.schemeCategory10,a=t.data_color,o=[];return function(t){var e,i=t.id||t.data&&t.data.id||t;return n[i]instanceof Function?e=n[i](t):n[i]?e=n[i]:(o.indexOf(i)<0&&o.push(i),e=r[o.indexOf(i)%r.length],n[i]=e),a instanceof Function?a(e,t):e}},l.prototype.generateLevelColor=function(){var t=this.config,n=t.color_pattern,e=t.color_threshold,r="value"===e.unit,a=e.values&&e.values.length?e.values:[],o=e.max||100;return C(t.color_threshold)?function(t){var e,i=n[n.length-1];for(e=0;e<a.length;e++)if((r?t:100*t/o)<a[e]){i=n[e];break}return i}:null},l.prototype.getDefaultConfig=function(){var e={bindto:"#chart",svg_classname:void 0,size_width:void 0,size_height:void 0,padding_left:void 0,padding_right:void 0,padding_top:void 0,padding_bottom:void 0,resize_auto:!0,zoom_enabled:!1,zoom_initialRange:void 0,zoom_type:"scroll",zoom_disableDefaultBehavior:!1,zoom_privileged:!1,zoom_rescale:!1,zoom_onzoom:function(){},zoom_onzoomstart:function(){},zoom_onzoomend:function(){},zoom_x_min:void 0,zoom_x_max:void 0,interaction_brighten:!0,interaction_enabled:!0,onmouseover:function(){},onmouseout:function(){},onresize:function(){},onresized:function(){},oninit:function(){},onrendered:function(){},transition_duration:350,data_x:void 0,data_xs:{},data_xFormat:"%Y-%m-%d",data_xLocaltime:!0,data_xSort:!0,data_idConverter:function(t){return t},data_names:{},data_classes:{},data_groups:[],data_axes:{},data_type:void 0,data_types:{},data_labels:{},data_order:"desc",data_regions:{},data_color:void 0,data_colors:{},data_hide:!1,data_filter:void 0,data_selection_enabled:!1,data_selection_grouped:!1,data_selection_isselectable:function(){return!0},data_selection_multiple:!0,data_selection_draggable:!1,data_onclick:function(){},data_onmouseover:function(){},data_onmouseout:function(){},data_onselected:function(){},data_onunselected:function(){},data_url:void 0,data_headers:void 0,data_json:void 0,data_rows:void 0,data_columns:void 0,data_mimeType:void 0,data_keys:void 0,data_empty_label_text:"",subchart_show:!1,subchart_size_height:60,subchart_axis_x_show:!0,subchart_onbrush:function(){},color_pattern:[],color_threshold:{},legend_show:!0,legend_hide:!1,legend_position:"bottom",legend_inset_anchor:"top-left",legend_inset_x:10,legend_inset_y:0,legend_inset_step:void 0,legend_item_onclick:void 0,legend_item_onmouseover:void 0,legend_item_onmouseout:void 0,legend_equally:!1,legend_padding:0,legend_item_tile_width:10,legend_item_tile_height:10,axis_rotated:!1,axis_x_show:!0,axis_x_type:"indexed",axis_x_localtime:!0,axis_x_categories:[],axis_x_tick_centered:!1,axis_x_tick_format:void 0,axis_x_tick_culling:{},axis_x_tick_culling_max:10,axis_x_tick_count:void 0,axis_x_tick_fit:!0,axis_x_tick_values:null,axis_x_tick_rotate:0,axis_x_tick_outer:!0,axis_x_tick_multiline:!0,axis_x_tick_multilineMax:0,axis_x_tick_width:null,axis_x_max:void 0,axis_x_min:void 0,axis_x_padding:{},axis_x_height:void 0,axis_x_selection:void 0,axis_x_label:{},axis_x_inner:void 0,axis_y_show:!0,axis_y_type:void 0,axis_y_max:void 0,axis_y_min:void 0,axis_y_inverted:!1,axis_y_center:void 0,axis_y_inner:void 0,axis_y_label:{},axis_y_tick_format:void 0,axis_y_tick_outer:!0,axis_y_tick_values:null,axis_y_tick_rotate:0,axis_y_tick_count:void 0,axis_y_tick_time_type:void 0,axis_y_tick_time_interval:void 0,axis_y_padding:{},axis_y_default:void 0,axis_y2_show:!1,axis_y2_max:void 0,axis_y2_min:void 0,axis_y2_inverted:!1,axis_y2_center:void 0,axis_y2_inner:void 0,axis_y2_label:{},axis_y2_tick_format:void 0,axis_y2_tick_outer:!0,axis_y2_tick_values:null,axis_y2_tick_count:void 0,axis_y2_padding:{},axis_y2_default:void 0,grid_x_show:!1,grid_x_type:"tick",grid_x_lines:[],grid_y_show:!1,grid_y_lines:[],grid_y_ticks:10,grid_focus_show:!0,grid_lines_front:!0,point_show:!0,point_r:2.5,point_sensitivity:10,point_focus_expand_enabled:!0,point_focus_expand_r:void 0,point_select_r:void 0,line_connectNull:!1,line_step_type:"step",bar_width:void 0,bar_width_ratio:.6,bar_width_max:void 0,bar_zerobased:!0,bar_space:0,area_zerobased:!0,area_above:!1,pie_label_show:!0,pie_label_format:void 0,pie_label_threshold:.05,pie_label_ratio:void 0,pie_expand:{},pie_expand_duration:50,gauge_fullCircle:!1,gauge_label_show:!0,gauge_labelLine_show:!0,gauge_label_format:void 0,gauge_min:0,gauge_max:100,gauge_startingAngle:-1*Math.PI/2,gauge_label_extents:void 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g.axis.getId(t.id)===e}),_=i?g.filterByXDomain(f,i):f,x="y2"===e?p.axis_y2_min:p.axis_y_min,y="y2"===e?p.axis_y2_max:p.axis_y_max,m=g.getYDomainMin(_),S=g.getYDomainMax(_),w="y2"===e?p.axis_y2_center:p.axis_y_center,v=g.hasType("bar",_)&&p.bar_zerobased||g.hasType("area",_)&&p.area_zerobased,b="y2"===e?p.axis_y2_inverted:p.axis_y_inverted,A=g.hasDataLabel()&&p.axis_rotated,T=g.hasDataLabel()&&!p.axis_rotated;return m=P(x)?x:P(y)?m<y?m:y-10:m,S=P(y)?y:P(x)?x<S?S:x+10:S,0===_.length?"y2"===e?g.y2.domain():g.y.domain():(isNaN(m)&&(m=0),isNaN(S)&&(S=m),m===S&&(m<0?S=0:m=0),u=0<=m&&0<=S,h=m<=0&&S<=0,(P(x)&&u||P(y)&&h)&&(v=!1),v&&(u&&(m=0),h&&(S=0)),a=o=.1*(r=Math.abs(S-m)),void 0!==w&&(S=w+(s=Math.max(Math.abs(m),Math.abs(S))),m=w-s),A?(c=g.getDataLabelLength(m,S,"width"),d=k(g.y.range()),a+=r*((l=[c[0]/d,c[1]/d])[1]/(1-l[0]-l[1])),o+=r*(l[0]/(1-l[0]-l[1]))):T&&(c=g.getDataLabelLength(m,S,"height"),a+=g.axis.convertPixelsToAxisPadding(c[1],r),o+=g.axis.convertPixelsToAxisPadding(c[0],r)),"y"===e&&C(p.axis_y_padding)&&(a=g.axis.getPadding(p.axis_y_padding,"top",a,r),o=g.axis.getPadding(p.axis_y_padding,"bottom",o,r)),"y2"===e&&C(p.axis_y2_padding)&&(a=g.axis.getPadding(p.axis_y2_padding,"top",a,r),o=g.axis.getPadding(p.axis_y2_padding,"bottom",o,r)),v&&(u&&(o=m),h&&(a=-S)),n=[m-o,S+a],b?n.reverse():n)},l.prototype.getXDomainMin=function(t){var e=this,i=e.config;return D(i.axis_x_min)?e.isTimeSeries()?this.parseDate(i.axis_x_min):i.axis_x_min:e.d3.min(t,function(t){return e.d3.min(t.values,function(t){return t.x})})},l.prototype.getXDomainMax=function(t){var e=this,i=e.config;return D(i.axis_x_max)?e.isTimeSeries()?this.parseDate(i.axis_x_max):i.axis_x_max:e.d3.max(t,function(t){return e.d3.max(t.values,function(t){return t.x})})},l.prototype.getXDomainPadding=function(t){var e,i,n,r,a=this.config,o=t[1]-t[0];return i=this.isCategorized()?0:this.hasType("bar")?1<(e=this.getMaxDataCount())?o/(e-1)/2:.5:.01*o,"object"===s(a.axis_x_padding)&&C(a.axis_x_padding)?(n=P(a.axis_x_padding.left)?a.axis_x_padding.left:i,r=P(a.axis_x_padding.right)?a.axis_x_padding.right:i):n=r="number"==typeof a.axis_x_padding?a.axis_x_padding:i,{left:n,right:r}},l.prototype.getXDomain=function(t){var e=this,i=[e.getXDomainMin(t),e.getXDomainMax(t)],n=i[0],r=i[1],a=e.getXDomainPadding(i),o=0,s=0;return n-r!=0||e.isCategorized()||(e.isTimeSeries()?(n=new Date(.5*n.getTime()),r=new Date(1.5*r.getTime())):(n=0===n?1:.5*n,r=0===r?-1:1.5*r)),(n||0===n)&&(o=e.isTimeSeries()?new Date(n.getTime()-a.left):n-a.left),(r||0===r)&&(s=e.isTimeSeries()?new Date(r.getTime()+a.right):r+a.right),[o,s]},l.prototype.updateXDomain=function(t,e,i,n,r){var a=this,o=a.config;return i&&(a.x.domain(r||a.d3.extent(a.getXDomain(t))),a.orgXDomain=a.x.domain(),o.zoom_enabled&&a.zoom.update(),a.subX.domain(a.x.domain()),a.brush&&a.brush.updateScale(a.subX)),e&&a.x.domain(r||(!a.brush||a.brush.empty()?a.orgXDomain:a.brush.selectionAsValue())),n&&a.x.domain(a.trimXDomain(a.x.orgDomain())),a.x.domain()},l.prototype.trimXDomain=function(t){var e=this.getZoomDomain(),i=e[0],n=e[1];return t[0]<=i&&(t[1]=+t[1]+(i-t[0]),t[0]=i),n<=t[1]&&(t[0]=+t[0]-(t[1]-n),t[1]=n),t},l.prototype.drag=function(t){var e,i,n,r,h,g,p,f,_=this,a=_.config,o=_.main,x=_.d3;_.hasArcType()||a.data_selection_enabled&&a.data_selection_multiple&&(e=_.dragStart[0],i=_.dragStart[1],n=t[0],r=t[1],h=Math.min(e,n),g=Math.max(e,n),p=a.data_selection_grouped?_.margin.top:Math.min(i,r),f=a.data_selection_grouped?_.height:Math.max(i,r),o.select("."+Y.dragarea).attr("x",h).attr("y",p).attr("width",g-h).attr("height",f-p),o.selectAll("."+Y.shapes).selectAll("."+Y.shape).filter(function(t){return a.data_selection_isselectable(t)}).each(function(t,e){var i,n,r,a,o,s,c=x.select(this),d=c.classed(Y.SELECTED),l=c.classed(Y.INCLUDED),u=!1;if(c.classed(Y.circle))i=1*c.attr("cx"),n=1*c.attr("cy"),o=_.togglePoint,u=h<i&&i<g&&p<n&&n<f;else{if(!c.classed(Y.bar))return;i=(s=y(this)).x,n=s.y,r=s.width,a=s.height,o=_.togglePath,u=!(g<i||i+r<h||f<n||n+a<p)}u^l&&(c.classed(Y.INCLUDED,!l),c.classed(Y.SELECTED,!d),o.call(_,!d,c,t,e))}))},l.prototype.dragstart=function(t){var e=this,i=e.config;e.hasArcType()||i.data_selection_enabled&&(e.dragStart=t,e.main.select("."+Y.chart).append("rect").attr("class",Y.dragarea).style("opacity",.1),e.dragging=!0)},l.prototype.dragend=function(){var t=this,e=t.config;t.hasArcType()||e.data_selection_enabled&&(t.main.select("."+Y.dragarea).transition().duration(100).style("opacity",0).remove(),t.main.selectAll("."+Y.shape).classed(Y.INCLUDED,!1),t.dragging=!1)},l.prototype.getYFormat=function(t){var n=this,r=t&&!n.hasType("gauge")?n.defaultArcValueFormat:n.yFormat,a=t&&!n.hasType("gauge")?n.defaultArcValueFormat:n.y2Format;return function(t,e,i){return("y2"===n.axis.getId(i)?a:r).call(n,t,e)}},l.prototype.yFormat=function(t){var e=this.config;return(e.axis_y_tick_format?e.axis_y_tick_format:this.defaultValueFormat)(t)},l.prototype.y2Format=function(t){var e=this.config;return(e.axis_y2_tick_format?e.axis_y2_tick_format:this.defaultValueFormat)(t)},l.prototype.defaultValueFormat=function(t){return P(t)?+t:""},l.prototype.defaultArcValueFormat=function(t,e){return(100*e).toFixed(1)+"%"},l.prototype.dataLabelFormat=function(t){var e=this.config.data_labels,i=function(t){return P(t)?+t:""};return"function"==typeof e.format?e.format:"object"===s(e.format)?e.format[t]?!0===e.format[t]?i:e.format[t]:function(){return""}:i},l.prototype.initGrid=function(){var t=this,e=t.config,i=t.d3;t.grid=t.main.append("g").attr("clip-path",t.clipPathForGrid).attr("class",Y.grid),e.grid_x_show&&t.grid.append("g").attr("class",Y.xgrids),e.grid_y_show&&t.grid.append("g").attr("class",Y.ygrids),e.grid_focus_show&&t.grid.append("g").attr("class",Y.xgridFocus).append("line").attr("class",Y.xgridFocus),t.xgrid=i.selectAll([]),e.grid_lines_front||t.initGridLines()},l.prototype.initGridLines=function(){var t=this,e=t.d3;t.gridLines=t.main.append("g").attr("clip-path",t.clipPathForGrid).attr("class",Y.grid+" "+Y.gridLines),t.gridLines.append("g").attr("class",Y.xgridLines),t.gridLines.append("g").attr("class",Y.ygridLines),t.xgridLines=e.selectAll([])},l.prototype.updateXGrid=function(t){var e=this,i=e.config,n=e.d3,r=e.generateGridData(i.grid_x_type,e.x),a=e.isCategorized()?e.xAxis.tickOffset():0;e.xgridAttr=i.axis_rotated?{x1:0,x2:e.width,y1:function(t){return e.x(t)-a},y2:function(t){return e.x(t)-a}}:{x1:function(t){return e.x(t)+a},x2:function(t){return e.x(t)+a},y1:0,y2:e.height},e.xgridAttr.opacity=function(){return+n.select(this).attr(i.axis_rotated?"y1":"x1")===(i.axis_rotated?e.height:0)?0:1};var o=e.main.select("."+Y.xgrids).selectAll("."+Y.xgrid).data(r),s=o.enter().append("line").attr("class",Y.xgrid).attr("x1",e.xgridAttr.x1).attr("x2",e.xgridAttr.x2).attr("y1",e.xgridAttr.y1).attr("y2",e.xgridAttr.y2).style("opacity",0);e.xgrid=s.merge(o),t||e.xgrid.attr("x1",e.xgridAttr.x1).attr("x2",e.xgridAttr.x2).attr("y1",e.xgridAttr.y1).attr("y2",e.xgridAttr.y2).style("opacity",e.xgridAttr.opacity),o.exit().remove()},l.prototype.updateYGrid=function(){var t=this,e=t.config,i=t.yAxis.tickValues()||t.y.ticks(e.grid_y_ticks),n=t.main.select("."+Y.ygrids).selectAll("."+Y.ygrid).data(i),r=n.enter().append("line").attr("class",Y.ygrid);t.ygrid=r.merge(n),t.ygrid.attr("x1",e.axis_rotated?t.y:0).attr("x2",e.axis_rotated?t.y:t.width).attr("y1",e.axis_rotated?0:t.y).attr("y2",e.axis_rotated?t.height:t.y),n.exit().remove(),t.smoothLines(t.ygrid,"grid")},l.prototype.gridTextAnchor=function(t){return t.position?t.position:"end"},l.prototype.gridTextDx=function(t){return"start"===t.position?4:"middle"===t.position?0:-4},l.prototype.xGridTextX=function(t){return"start"===t.position?-this.height:"middle"===t.position?-this.height/2:0},l.prototype.yGridTextX=function(t){return"start"===t.position?0:"middle"===t.position?this.width/2:this.width},l.prototype.updateGrid=function(t){var e,i,n,r,a=this,o=a.main,s=a.config,c=a.xv.bind(a),d=a.yv.bind(a),l=a.xGridTextX.bind(a),u=a.yGridTextX.bind(a);a.grid.style("visibility",a.hasArcType()?"hidden":"visible"),o.select("line."+Y.xgridFocus).style("visibility","hidden"),s.grid_x_show&&a.updateXGrid(),(i=(e=o.select("."+Y.xgridLines).selectAll("."+Y.xgridLine).data(s.grid_x_lines)).enter().append("g").attr("class",function(t){return Y.xgridLine+(t.class?" "+t.class:"")})).append("line").attr("x1",s.axis_rotated?0:c).attr("x2",s.axis_rotated?a.width:c).attr("y1",s.axis_rotated?c:0).attr("y2",s.axis_rotated?c:a.height).style("opacity",0),i.append("text").attr("text-anchor",a.gridTextAnchor).attr("transform",s.axis_rotated?"":"rotate(-90)").attr("x",s.axis_rotated?u:l).attr("y",c).attr("dx",a.gridTextDx).attr("dy",-5).style("opacity",0),a.xgridLines=i.merge(e),e.exit().transition().duration(t).style("opacity",0).remove(),s.grid_y_show&&a.updateYGrid(),(r=(n=o.select("."+Y.ygridLines).selectAll("."+Y.ygridLine).data(s.grid_y_lines)).enter().append("g").attr("class",function(t){return Y.ygridLine+(t.class?" "+t.class:"")})).append("line").attr("x1",s.axis_rotated?d:0).attr("x2",s.axis_rotated?d:a.width).attr("y1",s.axis_rotated?0:d).attr("y2",s.axis_rotated?a.height:d).style("opacity",0),r.append("text").attr("text-anchor",a.gridTextAnchor).attr("transform",s.axis_rotated?"rotate(-90)":"").attr("x",s.axis_rotated?l:u).attr("y",d).attr("dx",a.gridTextDx).attr("dy",-5).style("opacity",0),a.ygridLines=r.merge(n),a.ygridLines.select("line").transition().duration(t).attr("x1",s.axis_rotated?d:0).attr("x2",s.axis_rotated?d:a.width).attr("y1",s.axis_rotated?0:d).attr("y2",s.axis_rotated?a.height:d).style("opacity",1),a.ygridLines.select("text").transition().duration(t).attr("x",s.axis_rotated?a.xGridTextX.bind(a):a.yGridTextX.bind(a)).attr("y",d).text(function(t){return t.text}).style("opacity",1),n.exit().transition().duration(t).style("opacity",0).remove()},l.prototype.redrawGrid=function(t,e){var i=this,n=i.config,r=i.xv.bind(i),a=i.xgridLines.select("line"),o=i.xgridLines.select("text");return[(t?a.transition(e):a).attr("x1",n.axis_rotated?0:r).attr("x2",n.axis_rotated?i.width:r).attr("y1",n.axis_rotated?r:0).attr("y2",n.axis_rotated?r:i.height).style("opacity",1),(t?o.transition(e):o).attr("x",n.axis_rotated?i.yGridTextX.bind(i):i.xGridTextX.bind(i)).attr("y",r).text(function(t){return t.text}).style("opacity",1)]},l.prototype.showXGridFocus=function(t){var e=this,i=e.config,n=t.filter(function(t){return t&&P(t.value)}),r=e.main.selectAll("line."+Y.xgridFocus),a=e.xx.bind(e);i.tooltip_show&&(e.hasType("scatter")||e.hasArcType()||(r.style("visibility","visible").data([n[0]]).attr(i.axis_rotated?"y1":"x1",a).attr(i.axis_rotated?"y2":"x2",a),e.smoothLines(r,"grid")))},l.prototype.hideXGridFocus=function(){this.main.select("line."+Y.xgridFocus).style("visibility","hidden")},l.prototype.updateXgridFocus=function(){var t=this.config;this.main.select("line."+Y.xgridFocus).attr("x1",t.axis_rotated?0:-10).attr("x2",t.axis_rotated?this.width:-10).attr("y1",t.axis_rotated?-10:0).attr("y2",t.axis_rotated?-10:this.height)},l.prototype.generateGridData=function(t,e){var i,n,r,a,o=[],s=this.main.select("."+Y.axisX).selectAll(".tick").size();if("year"===t)for(n=(i=this.getXDomain())[0].getFullYear(),r=i[1].getFullYear(),a=n;a<=r;a++)o.push(new Date(a+"-01-01 00:00:00"));else(o=e.ticks(10)).length>s&&(o=o.filter(function(t){return(""+t).indexOf(".")<0}));return o},l.prototype.getGridFilterToRemove=function(t){return t?function(e){var i=!1;return[].concat(t).forEach(function(t){("value"in t&&e.value===t.value||"class"in t&&e.class===t.class)&&(i=!0)}),i}:function(){return!0}},l.prototype.removeGridLines=function(t,e){var i=this.config,n=this.getGridFilterToRemove(t),r=function(t){return!n(t)},a=e?Y.xgridLines:Y.ygridLines,o=e?Y.xgridLine:Y.ygridLine;this.main.select("."+a).selectAll("."+o).filter(n).transition().duration(i.transition_duration).style("opacity",0).remove(),e?i.grid_x_lines=i.grid_x_lines.filter(r):i.grid_y_lines=i.grid_y_lines.filter(r)},l.prototype.initEventRect=function(){var t=this,e=t.config;t.main.select("."+Y.chart).append("g").attr("class",Y.eventRects).style("fill-opacity",0),t.eventRect=t.main.select("."+Y.eventRects).append("rect").attr("class",Y.eventRect),e.zoom_enabled&&t.zoom&&(t.eventRect.call(t.zoom).on("dblclick.zoom",null),e.zoom_initialRange&&t.eventRect.transition().duration(0).call(t.zoom.transform,t.zoomTransform(e.zoom_initialRange)))},l.prototype.redrawEventRect=function(){var t,e,r=this,a=r.d3,o=r.config;function s(){r.svg.select("."+Y.eventRect).style("cursor",null),r.hideXGridFocus(),r.hideTooltip(),r.unexpandCircles(),r.unexpandBars()}t=r.width,e=r.height,r.main.select("."+Y.eventRects).style("cursor",o.zoom_enabled?o.axis_rotated?"ns-resize":"ew-resize":null),r.eventRect.attr("x",0).attr("y",0).attr("width",t).attr("height",e).on("mouseout",o.interaction_enabled?function(){o&&(r.hasArcType()||s())}:null).on("mousemove",o.interaction_enabled?function(){var t,e,i,n;r.dragging||r.hasArcType(t)||(t=r.filterTargetsToShow(r.data.targets),e=a.mouse(this),i=r.findClosestFromTargets(t,e),!r.mouseover||i&&i.id===r.mouseover.id||(o.data_onmouseout.call(r.api,r.mouseover),r.mouseover=void 0),i?(n=(r.isScatterType(i)||!o.tooltip_grouped?[i]:r.filterByX(t,i.x)).map(function(t){return r.addName(t)}),r.showTooltip(n,this),o.point_focus_expand_enabled&&(r.unexpandCircles(),n.forEach(function(t){r.expandCircles(t.index,t.id,!1)})),r.expandBars(i.index,i.id,!0),r.showXGridFocus(n),(r.isBarType(i.id)||r.dist(i,e)<o.point_sensitivity)&&(r.svg.select("."+Y.eventRect).style("cursor","pointer"),r.mouseover||(o.data_onmouseover.call(r.api,i),r.mouseover=i))):s())}:null).on("click",o.interaction_enabled?function(){var t,e,i;r.hasArcType(t)||(t=r.filterTargetsToShow(r.data.targets),e=a.mouse(this),(i=r.findClosestFromTargets(t,e))&&(r.isBarType(i.id)||r.dist(i,e)<o.point_sensitivity)&&(r.isScatterType(i)||!o.data_selection_grouped?[i]:r.filterByX(t,i.x)).forEach(function(t){r.main.selectAll("."+Y.shapes+r.getTargetSelectorSuffix(t.id)).selectAll("."+Y.shape+"-"+t.index).each(function(){(o.data_selection_grouped||r.isWithinShape(this,t))&&(r.toggleShape(this,t,t.index),o.data_onclick.call(r.api,t,this))})}))}:null).call(o.interaction_enabled&&o.data_selection_draggable&&r.drag?a.drag().on("drag",function(){r.drag(a.mouse(this))}).on("start",function(){r.dragstart(a.mouse(this))}).on("end",function(){r.dragend()}):function(){})},l.prototype.getMousePosition=function(t){return[this.x(t.x),this.getYScale(t.id)(t.value)]},l.prototype.dispatchEvent=function(t,e){var i="."+Y.eventRect,n=this.main.select(i).node(),r=n.getBoundingClientRect(),a=r.left+(e?e[0]:0),o=r.top+(e?e[1]:0),s=document.createEvent("MouseEvents");s.initMouseEvent(t,!0,!0,window,0,a,o,a,o,!1,!1,!1,!1,0,null),n.dispatchEvent(s)},l.prototype.initLegend=function(){var t=this;if(t.legendItemTextBox={},t.legendHasRendered=!1,t.legend=t.svg.append("g").attr("transform",t.getTranslate("legend")),!t.config.legend_show)return t.legend.style("visibility","hidden"),void(t.hiddenLegendIds=t.mapToIds(t.data.targets));t.updateLegendWithDefaults()},l.prototype.updateLegendWithDefaults=function(){this.updateLegend(this.mapToIds(this.data.targets),{withTransform:!1,withTransitionForTransform:!1,withTransition:!1})},l.prototype.updateSizeForLegend=function(t,e){var i=this,n=i.config,r={top:i.isLegendTop?i.getCurrentPaddingTop()+n.legend_inset_y+5.5:i.currentHeight-t-i.getCurrentPaddingBottom()-n.legend_inset_y,left:i.isLegendLeft?i.getCurrentPaddingLeft()+n.legend_inset_x+.5:i.currentWidth-e-i.getCurrentPaddingRight()-n.legend_inset_x+.5};i.margin3={top:i.isLegendRight?0:i.isLegendInset?r.top:i.currentHeight-t,right:NaN,bottom:0,left:i.isLegendRight?i.currentWidth-e:i.isLegendInset?r.left:0}},l.prototype.transformLegend=function(t){(t?this.legend.transition():this.legend).attr("transform",this.getTranslate("legend"))},l.prototype.updateLegendStep=function(t){this.legendStep=t},l.prototype.updateLegendItemWidth=function(t){this.legendItemWidth=t},l.prototype.updateLegendItemHeight=function(t){this.legendItemHeight=t},l.prototype.getLegendWidth=function(){var t=this;return t.config.legend_show?t.isLegendRight||t.isLegendInset?t.legendItemWidth*(t.legendStep+1):t.currentWidth:0},l.prototype.getLegendHeight=function(){var t=this,e=0;return t.config.legend_show&&(e=t.isLegendRight?t.currentHeight:Math.max(20,t.legendItemHeight)*(t.legendStep+1)),e},l.prototype.opacityForLegend=function(t){return t.classed(Y.legendItemHidden)?null:1},l.prototype.opacityForUnfocusedLegend=function(t){return t.classed(Y.legendItemHidden)?null:.3},l.prototype.toggleFocusLegend=function(e,t){var i=this;e=i.mapToTargetIds(e),i.legend.selectAll("."+Y.legendItem).filter(function(t){return 0<=e.indexOf(t)}).classed(Y.legendItemFocused,t).transition().duration(100).style("opacity",function(){return(t?i.opacityForLegend:i.opacityForUnfocusedLegend).call(i,i.d3.select(this))})},l.prototype.revertLegend=function(){var t=this,e=t.d3;t.legend.selectAll("."+Y.legendItem).classed(Y.legendItemFocused,!1).transition().duration(100).style("opacity",function(){return t.opacityForLegend(e.select(this))})},l.prototype.showLegend=function(t){var e=this,i=e.config;i.legend_show||(i.legend_show=!0,e.legend.style("visibility","visible"),e.legendHasRendered||e.updateLegendWithDefaults()),e.removeHiddenLegendIds(t),e.legend.selectAll(e.selectorLegends(t)).style("visibility","visible").transition().style("opacity",function(){return e.opacityForLegend(e.d3.select(this))})},l.prototype.hideLegend=function(t){var e=this,i=e.config;i.legend_show&&u(t)&&(i.legend_show=!1,e.legend.style("visibility","hidden")),e.addHiddenLegendIds(t),e.legend.selectAll(e.selectorLegends(t)).style("opacity",0).style("visibility","hidden")},l.prototype.clearLegendItemTextBoxCache=function(){this.legendItemTextBox={}},l.prototype.updateLegend=function(f,t,e){var i,n,r,a,o,s,c,d,l,u,h,g,p,_,x,y,m=this,S=m.config,w=4,v=10,b=0,A=0,T=10,P=S.legend_item_tile_width+5,C=0,L={},V={},G={},E=[0],I={},O=0;function R(t,e,i){var n,r,a,o,s=0===i,c=i===f.length-1,d=(a=t,o=e,m.legendItemTextBox[o]||(m.legendItemTextBox[o]=m.getTextRect(a.textContent,Y.legendItem,a)),m.legendItemTextBox[o]),l=d.width+P+(!c||m.isLegendRight||m.isLegendInset?v:0)+S.legend_padding,u=d.height+w,h=m.isLegendRight||m.isLegendInset?u:l,g=m.isLegendRight||m.isLegendInset?m.getLegendHeight():m.getLegendWidth();function p(t,e){e||(n=(g-C-h)/2)<T&&(n=(g-h)/2,C=0,O++),I[t]=O,E[O]=m.isLegendInset?10:n,L[t]=C,C+=h}s&&(A=b=O=C=0),!S.legend_show||m.isLegendToShow(e)?(V[e]=l,G[e]=u,(!b||b<=l)&&(b=l),(!A||A<=u)&&(A=u),r=m.isLegendRight||m.isLegendInset?A:b,S.legend_equally?(Object.keys(V).forEach(function(t){V[t]=b}),Object.keys(G).forEach(function(t){G[t]=A}),(n=(g-r*f.length)/2)<T?(O=C=0,f.forEach(function(t){p(t)})):p(e,!0)):p(e)):V[e]=G[e]=I[e]=L[e]=0}f=f.filter(function(t){return!D(S.data_names[t])||null!==S.data_names[t]}),h=N(t=t||{},"withTransition",!0),g=N(t,"withTransitionForTransform",!0),m.isLegendInset&&(O=S.legend_inset_step?S.legend_inset_step:f.length,m.updateLegendStep(O)),m.isLegendRight?(i=function(t){return b*I[t]},a=function(t){return E[I[t]]+L[t]}):m.isLegendInset?(i=function(t){return b*I[t]+10},a=function(t){return E[I[t]]+L[t]}):(i=function(t){return E[I[t]]+L[t]},a=function(t){return A*I[t]}),n=function(t,e){return i(t,e)+4+S.legend_item_tile_width},o=function(t,e){return a(t,e)+9},r=function(t,e){return i(t,e)},s=function(t,e){return a(t,e)-5},c=function(t,e){return i(t,e)-2},d=function(t,e){return i(t,e)-2+S.legend_item_tile_width},l=function(t,e){return a(t,e)+4},(u=m.legend.selectAll("."+Y.legendItem).data(f).enter().append("g").attr("class",function(t){return m.generateClass(Y.legendItem,t)}).style("visibility",function(t){return m.isLegendToShow(t)?"visible":"hidden"}).style("cursor","pointer").on("click",function(t){S.legend_item_onclick?S.legend_item_onclick.call(m,t):m.d3.event.altKey?(m.api.hide(),m.api.show(t)):(m.api.toggle(t),m.isTargetToShow(t)?m.api.focus(t):m.api.revert())}).on("mouseover",function(t){S.legend_item_onmouseover?S.legend_item_onmouseover.call(m,t):(m.d3.select(this).classed(Y.legendItemFocused,!0),!m.transiting&&m.isTargetToShow(t)&&m.api.focus(t))}).on("mouseout",function(t){S.legend_item_onmouseout?S.legend_item_onmouseout.call(m,t):(m.d3.select(this).classed(Y.legendItemFocused,!1),m.api.revert())})).append("text").text(function(t){return D(S.data_names[t])?S.data_names[t]:t}).each(function(t,e){R(this,t,e)}).style("pointer-events","none").attr("x",m.isLegendRight||m.isLegendInset?n:-200).attr("y",m.isLegendRight||m.isLegendInset?-200:o),u.append("rect").attr("class",Y.legendItemEvent).style("fill-opacity",0).attr("x",m.isLegendRight||m.isLegendInset?r:-200).attr("y",m.isLegendRight||m.isLegendInset?-200:s),u.append("line").attr("class",Y.legendItemTile).style("stroke",m.color).style("pointer-events","none").attr("x1",m.isLegendRight||m.isLegendInset?c:-200).attr("y1",m.isLegendRight||m.isLegendInset?-200:l).attr("x2",m.isLegendRight||m.isLegendInset?d:-200).attr("y2",m.isLegendRight||m.isLegendInset?-200:l).attr("stroke-width",S.legend_item_tile_height),y=m.legend.select("."+Y.legendBackground+" rect"),m.isLegendInset&&0<b&&0===y.size()&&(y=m.legend.insert("g","."+Y.legendItem).attr("class",Y.legendBackground).append("rect")),p=m.legend.selectAll("text").data(f).text(function(t){return D(S.data_names[t])?S.data_names[t]:t}).each(function(t,e){R(this,t,e)}),(h?p.transition():p).attr("x",n).attr("y",o),_=m.legend.selectAll("rect."+Y.legendItemEvent).data(f),(h?_.transition():_).attr("width",function(t){return V[t]}).attr("height",function(t){return G[t]}).attr("x",r).attr("y",s),x=m.legend.selectAll("line."+Y.legendItemTile).data(f),(h?x.transition():x).style("stroke",m.levelColor?function(t){return m.levelColor(m.cache[t].values[0].value)}:m.color).attr("x1",c).attr("y1",l).attr("x2",d).attr("y2",l),y&&(h?y.transition():y).attr("height",m.getLegendHeight()-12).attr("width",b*(O+1)+10),m.legend.selectAll("."+Y.legendItem).classed(Y.legendItemHidden,function(t){return!m.isTargetToShow(t)}),m.updateLegendItemWidth(b),m.updateLegendItemHeight(A),m.updateLegendStep(O),m.updateSizes(),m.updateScales(),m.updateSvgSize(),m.transformAll(g,e),m.legendHasRendered=!0},l.prototype.initRegion=function(){this.region=this.main.append("g").attr("clip-path",this.clipPath).attr("class",Y.regions)},l.prototype.updateRegion=function(t){var e=this,i=e.config;e.region.style("visibility",e.hasArcType()?"hidden":"visible");var n=e.main.select("."+Y.regions).selectAll("."+Y.region).data(i.regions),r=n.enter().append("rect").attr("x",e.regionX.bind(e)).attr("y",e.regionY.bind(e)).attr("width",e.regionWidth.bind(e)).attr("height",e.regionHeight.bind(e)).style("fill-opacity",0);e.mainRegion=r.merge(n).attr("class",e.classRegion.bind(e)),n.exit().transition().duration(t).style("opacity",0).remove()},l.prototype.redrawRegion=function(t,e){var i=this,n=i.mainRegion;return[(t?n.transition(e):n).attr("x",i.regionX.bind(i)).attr("y",i.regionY.bind(i)).attr("width",i.regionWidth.bind(i)).attr("height",i.regionHeight.bind(i)).style("fill-opacity",function(t){return P(t.opacity)?t.opacity:.1})]},l.prototype.regionX=function(t){var e=this,i=e.config,n="y"===t.axis?e.y:e.y2;return"y"===t.axis||"y2"===t.axis?i.axis_rotated&&"start"in t?n(t.start):0:i.axis_rotated?0:"start"in t?e.x(e.isTimeSeries()?e.parseDate(t.start):t.start):0},l.prototype.regionY=function(t){var e=this,i=e.config,n="y"===t.axis?e.y:e.y2;return"y"===t.axis||"y2"===t.axis?i.axis_rotated?0:"end"in t?n(t.end):0:i.axis_rotated&&"start"in t?e.x(e.isTimeSeries()?e.parseDate(t.start):t.start):0},l.prototype.regionWidth=function(t){var e,i=this,n=i.config,r=i.regionX(t),a="y"===t.axis?i.y:i.y2;return(e="y"===t.axis||"y2"===t.axis?n.axis_rotated&&"end"in t?a(t.end):i.width:n.axis_rotated?i.width:"end"in t?i.x(i.isTimeSeries()?i.parseDate(t.end):t.end):i.width)<r?0:e-r},l.prototype.regionHeight=function(t){var e,i=this,n=i.config,r=this.regionY(t),a="y"===t.axis?i.y:i.y2;return(e="y"===t.axis||"y2"===t.axis?n.axis_rotated?i.height:"start"in t?a(t.start):i.height:n.axis_rotated&&"end"in t?i.x(i.isTimeSeries()?i.parseDate(t.end):t.end):i.height)<r?0:e-r},l.prototype.isRegionOnX=function(t){return!t.axis||"x"===t.axis},l.prototype.getScale=function(t,e,i){return(i?this.d3.scaleTime():this.d3.scaleLinear()).range([t,e])},l.prototype.getX=function(t,e,i,n){var r,a=this.getScale(t,e,this.isTimeSeries()),o=i?a.domain(i):a;for(r in this.isCategorized()?(n=n||function(){return 0},a=function(t,e){var i=o(t)+n(t);return e?i:Math.ceil(i)}):a=function(t,e){var i=o(t);return e?i:Math.ceil(i)},o)a[r]=o[r];return a.orgDomain=function(){return o.domain()},this.isCategorized()&&(a.domain=function(t){return arguments.length?(o.domain(t),a):[(t=this.orgDomain())[0],t[1]+1]}),a},l.prototype.getY=function(t,e,i){var n=this.getScale(t,e,this.isTimeSeriesY());return i&&n.domain(i),n},l.prototype.getYScale=function(t){return"y2"===this.axis.getId(t)?this.y2:this.y},l.prototype.getSubYScale=function(t){return"y2"===this.axis.getId(t)?this.subY2:this.subY},l.prototype.updateScales=function(){var e=this,t=e.config,i=!e.x;e.xMin=t.axis_rotated?1:0,e.xMax=t.axis_rotated?e.height:e.width,e.yMin=t.axis_rotated?0:e.height,e.yMax=t.axis_rotated?e.width:1,e.subXMin=e.xMin,e.subXMax=e.xMax,e.subYMin=t.axis_rotated?0:e.height2,e.subYMax=t.axis_rotated?e.width2:1,e.x=e.getX(e.xMin,e.xMax,i?void 0:e.x.orgDomain(),function(){return e.xAxis.tickOffset()}),e.y=e.getY(e.yMin,e.yMax,i?t.axis_y_default:e.y.domain()),e.y2=e.getY(e.yMin,e.yMax,i?t.axis_y2_default:e.y2.domain()),e.subX=e.getX(e.xMin,e.xMax,e.orgXDomain,function(t){return t%1?0:e.subXAxis.tickOffset()}),e.subY=e.getY(e.subYMin,e.subYMax,i?t.axis_y_default:e.subY.domain()),e.subY2=e.getY(e.subYMin,e.subYMax,i?t.axis_y2_default:e.subY2.domain()),e.xAxisTickFormat=e.axis.getXAxisTickFormat(),e.xAxisTickValues=e.axis.getXAxisTickValues(),e.yAxisTickValues=e.axis.getYAxisTickValues(),e.y2AxisTickValues=e.axis.getY2AxisTickValues(),e.xAxis=e.axis.getXAxis(e.x,e.xOrient,e.xAxisTickFormat,e.xAxisTickValues,t.axis_x_tick_outer),e.subXAxis=e.axis.getXAxis(e.subX,e.subXOrient,e.xAxisTickFormat,e.xAxisTickValues,t.axis_x_tick_outer),e.yAxis=e.axis.getYAxis(e.y,e.yOrient,t.axis_y_tick_format,e.yAxisTickValues,t.axis_y_tick_outer),e.y2Axis=e.axis.getYAxis(e.y2,e.y2Orient,t.axis_y2_tick_format,e.y2AxisTickValues,t.axis_y2_tick_outer),i||e.brush&&e.brush.updateScale(e.subX),e.updateArc&&e.updateArc()},l.prototype.selectPoint=function(t,e,i){var n=this,r=n.config,a=(r.axis_rotated?n.circleY:n.circleX).bind(n),o=(r.axis_rotated?n.circleX:n.circleY).bind(n),s=n.pointSelectR.bind(n);r.data_onselected.call(n.api,e,t.node()),n.main.select("."+Y.selectedCircles+n.getTargetSelectorSuffix(e.id)).selectAll("."+Y.selectedCircle+"-"+i).data([e]).enter().append("circle").attr("class",function(){return n.generateClass(Y.selectedCircle,i)}).attr("cx",a).attr("cy",o).attr("stroke",function(){return n.color(e)}).attr("r",function(t){return 1.4*n.pointSelectR(t)}).transition().duration(100).attr("r",s)},l.prototype.unselectPoint=function(t,e,i){this.config.data_onunselected.call(this.api,e,t.node()),this.main.select("."+Y.selectedCircles+this.getTargetSelectorSuffix(e.id)).selectAll("."+Y.selectedCircle+"-"+i).transition().duration(100).attr("r",0).remove()},l.prototype.togglePoint=function(t,e,i,n){t?this.selectPoint(e,i,n):this.unselectPoint(e,i,n)},l.prototype.selectPath=function(t,e){var i=this;i.config.data_onselected.call(i,e,t.node()),i.config.interaction_brighten&&t.transition().duration(100).style("fill",function(){return i.d3.rgb(i.color(e)).brighter(.75)})},l.prototype.unselectPath=function(t,e){var i=this;i.config.data_onunselected.call(i,e,t.node()),i.config.interaction_brighten&&t.transition().duration(100).style("fill",function(){return i.color(e)})},l.prototype.togglePath=function(t,e,i,n){t?this.selectPath(e,i,n):this.unselectPath(e,i,n)},l.prototype.getToggle=function(t,e){var i;return"circle"===t.nodeName?i=this.isStepType(e)?function(){}:this.togglePoint:"path"===t.nodeName&&(i=this.togglePath),i},l.prototype.toggleShape=function(t,e,i){var n=this,r=n.d3,a=n.config,o=r.select(t),s=o.classed(Y.SELECTED),c=n.getToggle(t,e).bind(n);a.data_selection_enabled&&a.data_selection_isselectable(e)&&(a.data_selection_multiple||n.main.selectAll("."+Y.shapes+(a.data_selection_grouped?n.getTargetSelectorSuffix(e.id):"")).selectAll("."+Y.shape).each(function(t,e){var i=r.select(this);i.classed(Y.SELECTED)&&c(!1,i.classed(Y.SELECTED,!1),t,e)}),o.classed(Y.SELECTED,!s),c(!s,o,e,i))},l.prototype.initBar=function(){this.main.select("."+Y.chart).append("g").attr("class",Y.chartBars)},l.prototype.updateTargetsForBar=function(t){var e=this,i=e.config,n=e.classChartBar.bind(e),r=e.classBars.bind(e),a=e.classFocus.bind(e);e.main.select("."+Y.chartBars).selectAll("."+Y.chartBar).data(t).attr("class",function(t){return n(t)+a(t)}).enter().append("g").attr("class",n).style("pointer-events","none").append("g").attr("class",r).style("cursor",function(t){return i.data_selection_isselectable(t)?"pointer":null})},l.prototype.updateBar=function(t){var e=this,i=e.barData.bind(e),n=e.classBar.bind(e),r=e.initialOpacity.bind(e),a=function(t){return e.color(t.id)},o=e.main.selectAll("."+Y.bars).selectAll("."+Y.bar).data(i),s=o.enter().append("path").attr("class",n).style("stroke",a).style("fill",a);e.mainBar=s.merge(o).style("opacity",r),o.exit().transition().duration(t).style("opacity",0)},l.prototype.redrawBar=function(t,e,i){return[(e?this.mainBar.transition(i):this.mainBar).attr("d",t).style("stroke",this.color).style("fill",this.color).style("opacity",1)]},l.prototype.getBarW=function(t,e){var i=this.config,n="number"==typeof i.bar_width?i.bar_width:e?t.tickInterval()*i.bar_width_ratio/e:0;return i.bar_width_max&&n>i.bar_width_max?i.bar_width_max:n},l.prototype.getBars=function(t,e){return(e?this.main.selectAll("."+Y.bars+this.getTargetSelectorSuffix(e)):this.main).selectAll("."+Y.bar+(P(t)?"-"+t:""))},l.prototype.expandBars=function(t,e,i){i&&this.unexpandBars(),this.getBars(t,e).classed(Y.EXPANDED,!0)},l.prototype.unexpandBars=function(t){this.getBars(t).classed(Y.EXPANDED,!1)},l.prototype.generateDrawBar=function(t,e){var a=this.config,o=this.generateGetBarPoints(t,e);return function(t,e){var i=o(t,e),n=a.axis_rotated?1:0,r=a.axis_rotated?0:1;return"M "+i[0][n]+","+i[0][r]+" L"+i[1][n]+","+i[1][r]+" L"+i[2][n]+","+i[2][r]+" L"+i[3][n]+","+i[3][r]+" z"}},l.prototype.generateGetBarPoints=function(t,e){var o=this,i=e?o.subXAxis:o.xAxis,n=t.__max__+1,s=o.getBarW(i,n),c=o.getShapeX(s,n,t,!!e),d=o.getShapeY(!!e),l=o.getShapeOffset(o.isBarType,t,!!e),u=s*(o.config.bar_space/2),h=e?o.getSubYScale:o.getYScale;return function(t,e){var i=h.call(o,t.id)(0),n=l(t,e)||i,r=c(t),a=d(t);return o.config.axis_rotated&&(0<t.value&&a<i||t.value<0&&i<a)&&(a=i),[[r+u,n],[r+u,a-(i-n)],[r+s-u,a-(i-n)],[r+s-u,n]]}},l.prototype.isWithinBar=function(t,e){var i=e.getBoundingClientRect(),n=e.pathSegList.getItem(0),r=e.pathSegList.getItem(1),a=Math.min(n.x,r.x),o=Math.min(n.y,r.y),s=a+i.width+2,c=o+i.height+2,d=o-2;return a-2<t[0]&&t[0]<s&&d<t[1]&&t[1]<c},l.prototype.getShapeIndices=function(t){var e,i,n=this.config,r={},a=0;return this.filterTargetsToShow(this.data.targets.filter(t,this)).forEach(function(t){for(e=0;e<n.data_groups.length;e++)if(!(n.data_groups[e].indexOf(t.id)<0))for(i=0;i<n.data_groups[e].length;i++)if(n.data_groups[e][i]in r){r[t.id]=r[n.data_groups[e][i]];break}v(r[t.id])&&(r[t.id]=a++)}),r.__max__=a-1,r},l.prototype.getShapeX=function(i,n,r,t){var a=t?this.subX:this.x;return function(t){var e=t.id in r?r[t.id]:0;return t.x||0===t.x?a(t.x)-i*(n/2-e):0}},l.prototype.getShapeY=function(e){var i=this;return function(t){return(e?i.getSubYScale(t.id):i.getYScale(t.id))(t.value)}},l.prototype.getShapeOffset=function(t,s,e){var c=this,d=c.orderTargets(c.filterTargetsToShow(c.data.targets.filter(t,c))),l=d.map(function(t){return t.id});return function(i,n){var r=e?c.getSubYScale(i.id):c.getYScale(i.id),a=r(0),o=a;return d.forEach(function(t){var e=c.isStepType(i)?c.convertValuesToStep(t.values):t.values;t.id!==i.id&&s[t.id]===s[i.id]&&l.indexOf(t.id)<l.indexOf(i.id)&&(void 0!==e[n]&&+e[n].x==+i.x||(n=-1,e.forEach(function(t,e){t.x===i.x&&(n=e)})),n in e&&0<=e[n].value*i.value&&(o+=r(e[n].value)-a))}),o}},l.prototype.isWithinShape=function(t,e){var i,n=this,r=n.d3.select(t);return n.isTargetToShow(e.id)?"circle"===t.nodeName?i=n.isStepType(e)?n.isWithinStep(t,n.getYScale(e.id)(e.value)):n.isWithinCircle(t,1.5*n.pointSelectR(e)):"path"===t.nodeName&&(i=!r.classed(Y.bar)||n.isWithinBar(n.d3.mouse(t),t)):i=!1,i},l.prototype.getInterpolate=function(t){var e=this,i=e.d3,n={linear:i.curveLinear,"linear-closed":i.curveLinearClosed,basis:i.curveBasis,"basis-open":i.curveBasisOpen,"basis-closed":i.curveBasisClosed,bundle:i.curveBundle,cardinal:i.curveCardinal,"cardinal-open":i.curveCardinalOpen,"cardinal-closed":i.curveCardinalClosed,monotone:i.curveMonotoneX,step:i.curveStep,"step-before":i.curveStepBefore,"step-after":i.curveStepAfter};return e.isSplineType(t)?n[e.config.spline_interpolation_type]||n.cardinal:e.isStepType(t)?n[e.config.line_step_type]:n.linear},l.prototype.initLine=function(){this.main.select("."+Y.chart).append("g").attr("class",Y.chartLines)},l.prototype.updateTargetsForLine=function(t){var e,i=this,n=i.config,r=i.classChartLine.bind(i),a=i.classLines.bind(i),o=i.classAreas.bind(i),s=i.classCircles.bind(i),c=i.classFocus.bind(i);(e=i.main.select("."+Y.chartLines).selectAll("."+Y.chartLine).data(t).attr("class",function(t){return r(t)+c(t)}).enter().append("g").attr("class",r).style("opacity",0).style("pointer-events","none")).append("g").attr("class",a),e.append("g").attr("class",o),e.append("g").attr("class",function(t){return i.generateClass(Y.selectedCircles,t.id)}),e.append("g").attr("class",s).style("cursor",function(t){return n.data_selection_isselectable(t)?"pointer":null}),t.forEach(function(e){i.main.selectAll("."+Y.selectedCircles+i.getTargetSelectorSuffix(e.id)).selectAll("."+Y.selectedCircle).each(function(t){t.value=e.values[t.index].value})})},l.prototype.updateLine=function(t){var e=this,i=e.main.selectAll("."+Y.lines).selectAll("."+Y.line).data(e.lineData.bind(e)),n=i.enter().append("path").attr("class",e.classLine.bind(e)).style("stroke",e.color);e.mainLine=n.merge(i).style("opacity",e.initialOpacity.bind(e)).style("shape-rendering",function(t){return e.isStepType(t)?"crispEdges":""}).attr("transform",null),i.exit().transition().duration(t).style("opacity",0)},l.prototype.redrawLine=function(t,e,i){return[(e?this.mainLine.transition(i):this.mainLine).attr("d",t).style("stroke",this.color).style("opacity",1)]},l.prototype.generateDrawLine=function(t,s){var c=this,d=c.config,l=c.d3.line(),i=c.generateGetLinePoints(t,s),u=s?c.getSubYScale:c.getYScale,e=function(t){return(s?c.subxx:c.xx).call(c,t)},n=function(t,e){return 0<d.data_groups.length?i(t,e)[0][1]:u.call(c,t.id)(t.value)};return l=d.axis_rotated?l.x(n).y(e):l.x(e).y(n),d.line_connectNull||(l=l.defined(function(t){return null!=t.value})),function(t){var e,i=d.line_connectNull?c.filterRemoveNull(t.values):t.values,n=s?c.subX:c.x,r=u.call(c,t.id),a=0,o=0;return c.isLineType(t)?d.data_regions[t.id]?e=c.lineWithRegions(i,n,r,d.data_regions[t.id]):(c.isStepType(t)&&(i=c.convertValuesToStep(i)),e=l.curve(c.getInterpolate(t))(i)):(i[0]&&(a=n(i[0].x),o=r(i[0].value)),e=d.axis_rotated?"M "+o+" "+a:"M "+a+" "+o),e||"M 0 0"}},l.prototype.generateGetLinePoints=function(t,e){var o=this,s=o.config,i=t.__max__+1,c=o.getShapeX(0,i,t,!!e),d=o.getShapeY(!!e),l=o.getShapeOffset(o.isLineType,t,!!e),u=e?o.getSubYScale:o.getYScale;return function(t,e){var i=u.call(o,t.id)(0),n=l(t,e)||i,r=c(t),a=d(t);return s.axis_rotated&&(0<t.value&&a<i||t.value<0&&i<a)&&(a=i),[[r,a-(i-n)],[r,a-(i-n)],[r,a-(i-n)],[r,a-(i-n)]]}},l.prototype.lineWithRegions=function(t,c,d,e){var i,n,r,a,l,o,s,u,h,g,p,f=this,_=f.config,x="M",y=f.isCategorized()?.5:0,m=[];function S(t,e){var i;for(i=0;i<e.length;i++)if(e[i].start<t&&t<=e[i].end)return!0;return!1}if(D(e))for(i=0;i<e.length;i++)m[i]={},v(e[i].start)?m[i].start=t[0].x:m[i].start=f.isTimeSeries()?f.parseDate(e[i].start):e[i].start,v(e[i].end)?m[i].end=t[t.length-1].x:m[i].end=f.isTimeSeries()?f.parseDate(e[i].end):e[i].end;function w(t){return"M"+t[0][0]+" "+t[0][1]+" "+t[1][0]+" "+t[1][1]}for(g=_.axis_rotated?function(t){return d(t.value)}:function(t){return c(t.x)},p=_.axis_rotated?function(t){return c(t.x)}:function(t){return d(t.value)},r=f.isTimeSeries()?function(t,e,i,n){var r=t.x.getTime(),a=e.x-t.x,o=new Date(r+a*i),s=new Date(r+a*(i+n));return w(_.axis_rotated?[[d(l(i)),c(o)],[d(l(i+n)),c(s)]]:[[c(o),d(l(i))],[c(s),d(l(i+n))]])}:function(t,e,i,n){return w(_.axis_rotated?[[d(l(i),!0),c(a(i))],[d(l(i+n),!0),c(a(i+n))]]:[[c(a(i),!0),d(l(i))],[c(a(i+n),!0),d(l(i+n))]])},i=0;i<t.length;i++){if(v(m)||!S(t[i].x,m))x+=" "+g(t[i])+" "+p(t[i]);else for(a=f.getScale(t[i-1].x+y,t[i].x+y,f.isTimeSeries()),l=f.getScale(t[i-1].value,t[i].value),o=c(t[i].x)-c(t[i-1].x),s=d(t[i].value)-d(t[i-1].value),h=2*(u=2/Math.sqrt(Math.pow(o,2)+Math.pow(s,2))),n=u;n<=1;n+=h)x+=r(t[i-1],t[i],n,u);t[i].x}return x},l.prototype.updateArea=function(t){var e=this,i=e.d3,n=e.main.selectAll("."+Y.areas).selectAll("."+Y.area).data(e.lineData.bind(e)),r=n.enter().append("path").attr("class",e.classArea.bind(e)).style("fill",e.color).style("opacity",function(){return e.orgAreaOpacity=+i.select(this).style("opacity"),0});e.mainArea=r.merge(n).style("opacity",e.orgAreaOpacity),n.exit().transition().duration(t).style("opacity",0)},l.prototype.redrawArea=function(t,e,i){return[(e?this.mainArea.transition(i):this.mainArea).attr("d",t).style("fill",this.color).style("opacity",this.orgAreaOpacity)]},l.prototype.generateDrawArea=function(t,e){var a=this,o=a.config,s=a.d3.area(),i=a.generateGetAreaPoints(t,e),n=e?a.getSubYScale:a.getYScale,r=function(t){return(e?a.subxx:a.xx).call(a,t)},c=function(t,e){return 0<o.data_groups.length?i(t,e)[0][1]:n.call(a,t.id)(a.getAreaBaseValue(t.id))},d=function(t,e){return 0<o.data_groups.length?i(t,e)[1][1]:n.call(a,t.id)(t.value)};return s=o.axis_rotated?s.x0(c).x1(d).y(r):s.x(r).y0(o.area_above?0:c).y1(d),o.line_connectNull||(s=s.defined(function(t){return null!==t.value})),function(t){var e,i=o.line_connectNull?a.filterRemoveNull(t.values):t.values,n=0,r=0;return a.isAreaType(t)?(a.isStepType(t)&&(i=a.convertValuesToStep(i)),e=s.curve(a.getInterpolate(t))(i)):(i[0]&&(n=a.x(i[0].x),r=a.getYScale(t.id)(i[0].value)),e=o.axis_rotated?"M "+r+" "+n:"M "+n+" "+r),e||"M 0 0"}},l.prototype.getAreaBaseValue=function(){return 0},l.prototype.generateGetAreaPoints=function(t,e){var o=this,s=o.config,i=t.__max__+1,c=o.getShapeX(0,i,t,!!e),d=o.getShapeY(!!e),l=o.getShapeOffset(o.isAreaType,t,!!e),u=e?o.getSubYScale:o.getYScale;return function(t,e){var i=u.call(o,t.id)(0),n=l(t,e)||i,r=c(t),a=d(t);return s.axis_rotated&&(0<t.value&&a<i||t.value<0&&i<a)&&(a=i),[[r,n],[r,a-(i-n)],[r,a-(i-n)],[r,n]]}},l.prototype.updateCircle=function(t,e){var i=this,n=i.main.selectAll("."+Y.circles).selectAll("."+Y.circle).data(i.lineOrScatterData.bind(i)),r=n.enter().append("circle").attr("class",i.classCircle.bind(i)).attr("cx",t).attr("cy",e).attr("r",i.pointR.bind(i)).style("fill",i.color);i.mainCircle=r.merge(n).style("opacity",i.initialOpacityForCircle.bind(i)),n.exit().style("opacity",0)},l.prototype.redrawCircle=function(t,e,i,n){var r=this,a=r.main.selectAll("."+Y.selectedCircle);return[(i?r.mainCircle.transition(n):r.mainCircle).style("opacity",this.opacityForCircle.bind(r)).style("fill",r.color).attr("cx",t).attr("cy",e),(i?a.transition(n):a).attr("cx",t).attr("cy",e)]},l.prototype.circleX=function(t){return t.x||0===t.x?this.x(t.x):null},l.prototype.updateCircleY=function(){var t,i,e=this;0<e.config.data_groups.length?(t=e.getShapeIndices(e.isLineType),i=e.generateGetLinePoints(t),e.circleY=function(t,e){return i(t,e)[0][1]}):e.circleY=function(t){return e.getYScale(t.id)(t.value)}},l.prototype.getCircles=function(t,e){return(e?this.main.selectAll("."+Y.circles+this.getTargetSelectorSuffix(e)):this.main).selectAll("."+Y.circle+(P(t)?"-"+t:""))},l.prototype.expandCircles=function(t,e,i){var n=this.pointExpandedR.bind(this);i&&this.unexpandCircles(),this.getCircles(t,e).classed(Y.EXPANDED,!0).attr("r",n)},l.prototype.unexpandCircles=function(t){var e=this,i=e.pointR.bind(e);e.getCircles(t).filter(function(){return e.d3.select(this).classed(Y.EXPANDED)}).classed(Y.EXPANDED,!1).attr("r",i)},l.prototype.pointR=function(t){var e=this.config;return this.isStepType(t)?0:h(e.point_r)?e.point_r(t):e.point_r},l.prototype.pointExpandedR=function(t){var e=this.config;return e.point_focus_expand_enabled?h(e.point_focus_expand_r)?e.point_focus_expand_r(t):e.point_focus_expand_r?e.point_focus_expand_r:1.75*this.pointR(t):this.pointR(t)},l.prototype.pointSelectR=function(t){var e=this.config;return h(e.point_select_r)?e.point_select_r(t):e.point_select_r?e.point_select_r:4*this.pointR(t)},l.prototype.isWithinCircle=function(t,e){var i=this.d3,n=i.mouse(t),r=i.select(t),a=+r.attr("cx"),o=+r.attr("cy");return Math.sqrt(Math.pow(a-n[0],2)+Math.pow(o-n[1],2))<e},l.prototype.isWithinStep=function(t,e){return Math.abs(e-this.d3.mouse(t)[1])<30},l.prototype.getCurrentWidth=function(){var t=this.config;return t.size_width?t.size_width:this.getParentWidth()},l.prototype.getCurrentHeight=function(){var t=this.config,e=t.size_height?t.size_height:this.getParentHeight();return 0<e?e:320/(this.hasType("gauge")&&!t.gauge_fullCircle?2:1)},l.prototype.getCurrentPaddingTop=function(){var t=this.config,e=P(t.padding_top)?t.padding_top:0;return this.title&&this.title.node()&&(e+=this.getTitlePadding()),e},l.prototype.getCurrentPaddingBottom=function(){var t=this.config;return P(t.padding_bottom)?t.padding_bottom:0},l.prototype.getCurrentPaddingLeft=function(t){var e=this.config;return P(e.padding_left)?e.padding_left:e.axis_rotated?!e.axis_x_show||e.axis_x_inner?1:Math.max(r(this.getAxisWidthByAxisId("x",t)),40):!e.axis_y_show||e.axis_y_inner?this.axis.getYAxisLabelPosition().isOuter?30:1:r(this.getAxisWidthByAxisId("y",t))},l.prototype.getCurrentPaddingRight=function(){var t=this,e=t.config,i=t.isLegendRight?t.getLegendWidth()+20:0;return P(e.padding_right)?e.padding_right+1:e.axis_rotated?10+i:!e.axis_y2_show||e.axis_y2_inner?2+i+(t.axis.getY2AxisLabelPosition().isOuter?20:0):r(t.getAxisWidthByAxisId("y2"))+i},l.prototype.getParentRectValue=function(e){for(var i,n=this.selectChart.node();n&&"BODY"!==n.tagName;){try{i=n.getBoundingClientRect()[e]}catch(t){"width"===e&&(i=n.offsetWidth)}if(i)break;n=n.parentNode}return i},l.prototype.getParentWidth=function(){return this.getParentRectValue("width")},l.prototype.getParentHeight=function(){var t=this.selectChart.style("height");return 0<t.indexOf("px")?+t.replace("px",""):0},l.prototype.getSvgLeft=function(t){var e=this,i=e.config,n=i.axis_rotated||!i.axis_rotated&&!i.axis_y_inner,r=i.axis_rotated?Y.axisX:Y.axisY,a=e.main.select("."+r).node(),o=a&&n?a.getBoundingClientRect():{right:0},s=e.selectChart.node().getBoundingClientRect(),c=e.hasArcType(),d=o.right-s.left-(c?0:e.getCurrentPaddingLeft(t));return 0<d?d:0},l.prototype.getAxisWidthByAxisId=function(t,e){var i=this.axis.getLabelPositionById(t);return this.axis.getMaxTickWidth(t,e)+(i.isInner?20:40)},l.prototype.getHorizontalAxisHeight=function(t){var e=this,i=e.config,n=30;return"x"!==t||i.axis_x_show?"x"===t&&i.axis_x_height?i.axis_x_height:"y"!==t||i.axis_y_show?"y2"!==t||i.axis_y2_show?("x"===t&&!i.axis_rotated&&i.axis_x_tick_rotate&&(n=30+e.axis.getMaxTickWidth(t)*Math.cos(Math.PI*(90-Math.abs(i.axis_x_tick_rotate))/180)),"y"===t&&i.axis_rotated&&i.axis_y_tick_rotate&&(n=30+e.axis.getMaxTickWidth(t)*Math.cos(Math.PI*(90-Math.abs(i.axis_y_tick_rotate))/180)),n+(e.axis.getLabelPositionById(t).isInner?0:10)+("y2"===t?-10:0)):e.rotated_padding_top:!i.legend_show||e.isLegendRight||e.isLegendInset?1:10:8},l.prototype.initBrush=function(t){var r=this,e=r.d3;return r.brush=(r.config.axis_rotated?e.brushY():e.brushX()).on("brush",function(){var t=e.event.sourceEvent;t&&"zoom"===t.type||r.redrawForBrush()}).on("end",function(){var t=e.event.sourceEvent;t&&"zoom"===t.type||r.brush.empty()&&t&&"end"!==t.type&&r.brush.clear()}),r.brush.updateExtent=function(){var t,e=this.scale.range();return t=r.config.axis_rotated?[[0,e[0]],[r.width2,e[1]]]:[[e[0],0],[e[1],r.height2]],this.extent(t),this},r.brush.updateScale=function(t){return this.scale=t,this},r.brush.update=function(t){this.updateScale(t||r.subX).updateExtent(),r.context.select("."+Y.brush).call(this)},r.brush.clear=function(){r.context.select("."+Y.brush).call(r.brush.move,null)},r.brush.selection=function(){return e.brushSelection(r.context.select("."+Y.brush).node())},r.brush.selectionAsValue=function(t,e){var i,n;return t?(r.context&&(i=[this.scale(t[0]),this.scale(t[1])],n=r.context.select("."+Y.brush),e&&(n=n.transition()),r.brush.move(n,i)),[]):(i=r.brush.selection()||[0,0],[this.scale.invert(i[0]),this.scale.invert(i[1])])},r.brush.empty=function(){var t=r.brush.selection();return!t||t[0]===t[1]},r.brush.updateScale(t)},l.prototype.initSubchart=function(){var t=this,e=t.config,i=t.context=t.svg.append("g").attr("transform",t.getTranslate("context")),n=e.subchart_show?"visible":"hidden";i.style("visibility",n),i.append("g").attr("clip-path",t.clipPathForSubchart).attr("class",Y.chart),i.select("."+Y.chart).append("g").attr("class",Y.chartBars),i.select("."+Y.chart).append("g").attr("class",Y.chartLines),i.append("g").attr("clip-path",t.clipPath).attr("class",Y.brush),t.axes.subx=i.append("g").attr("class",Y.axisX).attr("transform",t.getTranslate("subx")).attr("clip-path",e.axis_rotated?"":t.clipPathForXAxis)},l.prototype.initSubchartBrush=function(){this.initBrush(this.subX).updateExtent(),this.context.select("."+Y.brush).call(this.brush)},l.prototype.updateTargetsForSubchart=function(t){var e,i,n,r,a=this,o=a.context,s=a.config,c=a.classChartBar.bind(a),d=a.classBars.bind(a),l=a.classChartLine.bind(a),u=a.classLines.bind(a),h=a.classAreas.bind(a);s.subchart_show&&((n=(r=o.select("."+Y.chartBars).selectAll("."+Y.chartBar).data(t)).enter().append("g").style("opacity",0)).merge(r).attr("class",c),n.append("g").attr("class",d),(e=(i=o.select("."+Y.chartLines).selectAll("."+Y.chartLine).data(t)).enter().append("g").style("opacity",0)).merge(i).attr("class",l),e.append("g").attr("class",u),e.append("g").attr("class",h),o.selectAll("."+Y.brush+" rect").attr(s.axis_rotated?"width":"height",s.axis_rotated?a.width2:a.height2))},l.prototype.updateBarForSubchart=function(t){var e=this,i=e.context.selectAll("."+Y.bars).selectAll("."+Y.bar).data(e.barData.bind(e)),n=i.enter().append("path").attr("class",e.classBar.bind(e)).style("stroke","none").style("fill",e.color);i.exit().transition().duration(t).style("opacity",0).remove(),e.contextBar=n.merge(i).style("opacity",e.initialOpacity.bind(e))},l.prototype.redrawBarForSubchart=function(t,e,i){(e?this.contextBar.transition(Math.random().toString()).duration(i):this.contextBar).attr("d",t).style("opacity",1)},l.prototype.updateLineForSubchart=function(t){var e=this,i=e.context.selectAll("."+Y.lines).selectAll("."+Y.line).data(e.lineData.bind(e)),n=i.enter().append("path").attr("class",e.classLine.bind(e)).style("stroke",e.color);i.exit().transition().duration(t).style("opacity",0).remove(),e.contextLine=n.merge(i).style("opacity",e.initialOpacity.bind(e))},l.prototype.redrawLineForSubchart=function(t,e,i){(e?this.contextLine.transition(Math.random().toString()).duration(i):this.contextLine).attr("d",t).style("opacity",1)},l.prototype.updateAreaForSubchart=function(t){var e=this,i=e.d3,n=e.context.selectAll("."+Y.areas).selectAll("."+Y.area).data(e.lineData.bind(e)),r=n.enter().append("path").attr("class",e.classArea.bind(e)).style("fill",e.color).style("opacity",function(){return e.orgAreaOpacity=+i.select(this).style("opacity"),0});n.exit().transition().duration(t).style("opacity",0).remove(),e.contextArea=r.merge(n).style("opacity",0)},l.prototype.redrawAreaForSubchart=function(t,e,i){(e?this.contextArea.transition(Math.random().toString()).duration(i):this.contextArea).attr("d",t).style("fill",this.color).style("opacity",this.orgAreaOpacity)},l.prototype.redrawSubchart=function(t,e,i,n,r,a,o){var s,c,d,l=this,u=l.d3,h=l.config;l.context.style("visibility",h.subchart_show?"visible":"hidden"),h.subchart_show&&(u.event&&"zoom"===u.event.type&&l.brush.selectionAsValue(l.x.orgDomain()),t&&(l.brush.empty()||l.brush.selectionAsValue(l.x.orgDomain()),s=l.generateDrawArea(r,!0),c=l.generateDrawBar(a,!0),d=l.generateDrawLine(o,!0),l.updateBarForSubchart(i),l.updateLineForSubchart(i),l.updateAreaForSubchart(i),l.redrawBarForSubchart(c,i,i),l.redrawLineForSubchart(d,i,i),l.redrawAreaForSubchart(s,i,i)))},l.prototype.redrawForBrush=function(){var t,e=this,i=e.x,n=e.d3;e.redraw({withTransition:!1,withY:e.config.zoom_rescale,withSubchart:!1,withUpdateXDomain:!0,withEventRect:!1,withDimension:!1}),t=n.event.selection||e.brush.scale.range(),e.main.select("."+Y.eventRect).call(e.zoom.transform,n.zoomIdentity.scale(e.width/(t[1]-t[0])).translate(-t[0],0)),e.config.subchart_onbrush.call(e.api,i.orgDomain())},l.prototype.transformContext=function(t,e){var i;e&&e.axisSubX?i=e.axisSubX:(i=this.context.select("."+Y.axisX),t&&(i=i.transition())),this.context.attr("transform",this.getTranslate("context")),i.attr("transform",this.getTranslate("subx"))},l.prototype.getDefaultSelection=function(){var t=this,e=t.config,i=h(e.axis_x_selection)?e.axis_x_selection(t.getXDomain(t.data.targets)):e.axis_x_selection;return t.isTimeSeries()&&(i=[t.parseDate(i[0]),t.parseDate(i[1])]),i},l.prototype.initText=function(){this.main.select("."+Y.chart).append("g").attr("class",Y.chartTexts),this.mainText=this.d3.selectAll([])},l.prototype.updateTargetsForText=function(t){var e=this,i=e.classChartText.bind(e),n=e.classTexts.bind(e),r=e.classFocus.bind(e),a=e.main.select("."+Y.chartTexts).selectAll("."+Y.chartText).data(t),o=a.enter().append("g").attr("class",i).style("opacity",0).style("pointer-events","none");o.append("g").attr("class",n),o.merge(a).attr("class",function(t){return i(t)+r(t)})},l.prototype.updateText=function(t,e,i){var n=this,r=n.config,a=n.barOrLineData.bind(n),o=n.classText.bind(n),s=n.main.selectAll("."+Y.texts).selectAll("."+Y.text).data(a),c=s.enter().append("text").attr("class",o).attr("text-anchor",function(t){return r.axis_rotated?t.value<0?"end":"start":"middle"}).style("stroke","none").attr("x",t).attr("y",e).style("fill",function(t){return n.color(t)}).style("fill-opacity",0);n.mainText=c.merge(s).text(function(t,e,i){return n.dataLabelFormat(t.id)(t.value,t.id,e,i)}),s.exit().transition().duration(i).style("fill-opacity",0).remove()},l.prototype.redrawText=function(t,e,i,n,r){return[(n?this.mainText.transition(r):this.mainText).attr("x",t).attr("y",e).style("fill",this.color).style("fill-opacity",i?0:this.opacityForText.bind(this))]},l.prototype.getTextRect=function(t,e,i){var n,r=this.d3.select("body").append("div").classed("c3",!0),a=r.append("svg").style("visibility","hidden").style("position","fixed").style("top",0).style("left",0),o=this.d3.select(i).style("font");return a.selectAll(".dummy").data([t]).enter().append("text").classed(e||"",!0).style("font",o).text(t).each(function(){n=this.getBoundingClientRect()}),r.remove(),n},l.prototype.generateXYForText=function(t,e,i,n){var r=this,a=r.generateGetAreaPoints(t,!1),o=r.generateGetBarPoints(e,!1),s=r.generateGetLinePoints(i,!1),c=n?r.getXForText:r.getYForText;return function(t,e){var i=r.isAreaType(t)?a:r.isBarType(t)?o:s;return c.call(r,i(t,e),t,this)}},l.prototype.getXForText=function(t,e,i){var n,r,a=this,o=i.getBoundingClientRect();return a.config.axis_rotated?(r=a.isBarType(e)?4:6,n=t[2][1]+r*(e.value<0?-1:1)):n=a.hasType("bar")?(t[2][0]+t[0][0])/2:t[0][0],null===e.value&&(n>a.width?n=a.width-o.width:n<0&&(n=4)),n},l.prototype.getYForText=function(t,e,i){var n,r=this,a=i.getBoundingClientRect();return r.config.axis_rotated?n=(t[0][0]+t[2][0]+.6*a.height)/2:(n=t[2][1],e.value<0||0===e.value&&!r.hasPositiveValue?(n+=a.height,r.isBarType(e)&&r.isSafari()?n-=3:!r.isBarType(e)&&r.isChrome()&&(n+=3)):n+=r.isBarType(e)?-3:-6),null!==e.value||r.config.axis_rotated||(n<a.height?n=a.height:n>this.height&&(n=this.height-4)),n},l.prototype.initTitle=function(){this.title=this.svg.append("text").text(this.config.title_text).attr("class",this.CLASS.title)},l.prototype.redrawTitle=function(){var t=this;t.title.attr("x",t.xForTitle.bind(t)).attr("y",t.yForTitle.bind(t))},l.prototype.xForTitle=function(){var t=this,e=t.config,i=e.title_position||"left";return 0<=i.indexOf("right")?t.currentWidth-t.getTextRect(t.title.node().textContent,t.CLASS.title,t.title.node()).width-e.title_padding.right:0<=i.indexOf("center")?(t.currentWidth-t.getTextRect(t.title.node().textContent,t.CLASS.title,t.title.node()).width)/2:e.title_padding.left},l.prototype.yForTitle=function(){var t=this;return t.config.title_padding.top+t.getTextRect(t.title.node().textContent,t.CLASS.title,t.title.node()).height},l.prototype.getTitlePadding=function(){return this.yForTitle()+this.config.title_padding.bottom},l.prototype.initTooltip=function(){var t,e=this,i=e.config;if(e.tooltip=e.selectChart.style("position","relative").append("div").attr("class",Y.tooltipContainer).style("position","absolute").style("pointer-events","none").style("display","none"),i.tooltip_init_show){if(e.isTimeSeries()&&c(i.tooltip_init_x)){for(i.tooltip_init_x=e.parseDate(i.tooltip_init_x),t=0;t<e.data.targets[0].values.length&&e.data.targets[0].values[t].x-i.tooltip_init_x!=0;t++);i.tooltip_init_x=t}e.tooltip.html(i.tooltip_contents.call(e,e.data.targets.map(function(t){return e.addName(t.values[i.tooltip_init_x])}),e.axis.getXAxisTickFormat(),e.getYFormat(e.hasArcType()),e.color)),e.tooltip.style("top",i.tooltip_init_position.top).style("left",i.tooltip_init_position.left).style("display","block")}},l.prototype.getTooltipSortFunction=function(){var t=this,e=t.config;if(0!==e.data_groups.length&&void 0===e.tooltip_order){var i=t.orderTargets(t.data.targets).map(function(t){return t.id});return(t.isOrderAsc()||t.isOrderDesc())&&(i=i.reverse()),function(t,e){return i.indexOf(t.id)-i.indexOf(e.id)}}var n=e.tooltip_order;void 0===n&&(n=e.data_order);var r=function(t){return t?t.value:null};if(c(n)&&"asc"===n.toLowerCase())return function(t,e){return r(t)-r(e)};if(c(n)&&"desc"===n.toLowerCase())return function(t,e){return r(e)-r(t)};if(h(n)){var a=n;return void 0===e.tooltip_order&&(a=function(t,e){return n(t?{id:t.id,values:[t]}:null,e?{id:e.id,values:[e]}:null)}),a}return o(n)?function(t,e){return n.indexOf(t.id)-n.indexOf(e.id)}:void 0},l.prototype.getTooltipContent=function(t,e,i,n){var r,a,o,s,c,d,l=this,u=l.config,h=u.tooltip_format_title||e,g=u.tooltip_format_name||function(t){return t},p=u.tooltip_format_value||i,f=this.getTooltipSortFunction();for(f&&t.sort(f),a=0;a<t.length;a++)if(t[a]&&(t[a].value||0===t[a].value)&&(r||(o=_(h?h(t[a].x):t[a].x),r="<table class='"+l.CLASS.tooltip+"'>"+(o||0===o?"<tr><th colspan='2'>"+o+"</th></tr>":"")),void 0!==(s=_(p(t[a].value,t[a].ratio,t[a].id,t[a].index,t))))){if(null===t[a].name)continue;c=_(g(t[a].name,t[a].ratio,t[a].id,t[a].index)),d=l.levelColor?l.levelColor(t[a].value):n(t[a].id),r+="<tr class='"+l.CLASS.tooltipName+"-"+l.getTargetSelectorSuffix(t[a].id)+"'>",r+="<td class='name'><span style='background-color:"+d+"'></span>"+c+"</td>",r+="<td class='value'>"+s+"</td>",r+="</tr>"}return r+"</table>"},l.prototype.tooltipPosition=function(t,e,i,n){var r,a,o,s,c,d=this,l=d.config,u=d.d3,h=d.hasArcType(),g=u.mouse(n);return h?(a=(d.width-(d.isLegendRight?d.getLegendWidth():0))/2+g[0],s=(d.hasType("gauge")?d.height:d.height/2)+g[1]+20):(r=d.getSvgLeft(!0),l.axis_rotated?(o=(a=r+g[0]+100)+e,c=d.currentWidth-d.getCurrentPaddingRight(),s=d.x(t[0].x)+20):(o=(a=r+d.getCurrentPaddingLeft(!0)+d.x(t[0].x)+20)+e,c=r+d.currentWidth-d.getCurrentPaddingRight(),s=g[1]+15),c<o&&(a-=o-c+20),s+i>d.currentHeight&&(s-=i+30)),s<0&&(s=0),{top:s,left:a}},l.prototype.showTooltip=function(t,e){var i,n,r,a=this,o=a.config,s=a.hasArcType(),c=t.filter(function(t){return t&&P(t.value)}),d=o.tooltip_position||l.prototype.tooltipPosition;0!==c.length&&o.tooltip_show&&(a.tooltip.html(o.tooltip_contents.call(a,t,a.axis.getXAxisTickFormat(),a.getYFormat(s),a.color)).style("display","block"),i=a.tooltip.property("offsetWidth"),n=a.tooltip.property("offsetHeight"),r=d.call(this,c,i,n,e),a.tooltip.style("top",r.top+"px").style("left",r.left+"px"))},l.prototype.hideTooltip=function(){this.tooltip.style("display","none")},l.prototype.setTargetType=function(t,e){var i=this,n=i.config;i.mapToTargetIds(t).forEach(function(t){i.withoutFadeIn[t]=e===n.data_types[t],n.data_types[t]=e}),t||(n.data_type=e)},l.prototype.hasType=function(i,t){var n=this.config.data_types,r=!1;return(t=t||this.data.targets)&&t.length?t.forEach(function(t){var e=n[t.id];(e&&0<=e.indexOf(i)||!e&&"line"===i)&&(r=!0)}):Object.keys(n).length?Object.keys(n).forEach(function(t){n[t]===i&&(r=!0)}):r=this.config.data_type===i,r},l.prototype.hasArcType=function(t){return this.hasType("pie",t)||this.hasType("donut",t)||this.hasType("gauge",t)},l.prototype.isLineType=function(t){var e=this.config,i=c(t)?t:t.id;return!e.data_types[i]||0<=["line","spline","area","area-spline","step","area-step"].indexOf(e.data_types[i])},l.prototype.isStepType=function(t){var e=c(t)?t:t.id;return 0<=["step","area-step"].indexOf(this.config.data_types[e])},l.prototype.isSplineType=function(t){var e=c(t)?t:t.id;return 0<=["spline","area-spline"].indexOf(this.config.data_types[e])},l.prototype.isAreaType=function(t){var e=c(t)?t:t.id;return 0<=["area","area-spline","area-step"].indexOf(this.config.data_types[e])},l.prototype.isBarType=function(t){var e=c(t)?t:t.id;return"bar"===this.config.data_types[e]},l.prototype.isScatterType=function(t){var e=c(t)?t:t.id;return"scatter"===this.config.data_types[e]},l.prototype.isPieType=function(t){var e=c(t)?t:t.id;return"pie"===this.config.data_types[e]},l.prototype.isGaugeType=function(t){var e=c(t)?t:t.id;return"gauge"===this.config.data_types[e]},l.prototype.isDonutType=function(t){var e=c(t)?t:t.id;return"donut"===this.config.data_types[e]},l.prototype.isArcType=function(t){return this.isPieType(t)||this.isDonutType(t)||this.isGaugeType(t)},l.prototype.lineData=function(t){return this.isLineType(t)?[t]:[]},l.prototype.arcData=function(t){return this.isArcType(t.data)?[t]:[]},l.prototype.barData=function(t){return this.isBarType(t)?t.values:[]},l.prototype.lineOrScatterData=function(t){return this.isLineType(t)||this.isScatterType(t)?t.values:[]},l.prototype.barOrLineData=function(t){return this.isBarType(t)||this.isLineType(t)?t.values:[]},l.prototype.isSafari=function(){var t=window.navigator.userAgent;return 0<=t.indexOf("Safari")&&t.indexOf("Chrome")<0},l.prototype.isChrome=function(){return 0<=window.navigator.userAgent.indexOf("Chrome")},l.prototype.initZoom=function(){var e,i=this,n=i.d3,r=i.config;return i.zoom=n.zoom().on("start",function(){if("scroll"===r.zoom_type){var t=n.event.sourceEvent;t&&"brush"===t.type||(e=t,r.zoom_onzoomstart.call(i.api,t))}}).on("zoom",function(){if("scroll"===r.zoom_type){var t=n.event.sourceEvent;t&&"brush"===t.type||(i.redrawForZoom(),r.zoom_onzoom.call(i.api,i.x.orgDomain()))}}).on("end",function(){if("scroll"===r.zoom_type){var t=n.event.sourceEvent;t&&"brush"===t.type||t&&e.clientX===t.clientX&&e.clientY===t.clientY||r.zoom_onzoomend.call(i.api,i.x.orgDomain())}}),i.zoom.updateDomain=function(){return n.event&&n.event.transform&&i.x.domain(n.event.transform.rescaleX(i.subX).domain()),this},i.zoom.updateExtent=function(){return this.scaleExtent([1,1/0]).translateExtent([[0,0],[i.width,i.height]]).extent([[0,0],[i.width,i.height]]),this},i.zoom.update=function(){return this.updateExtent().updateDomain()},i.zoom.updateExtent()},l.prototype.zoomTransform=function(t){var e=[this.x(t[0]),this.x(t[1])];return this.d3.zoomIdentity.scale(this.width/(e[1]-e[0])).translate(-e[0],0)},l.prototype.initDragZoom=function(){var e=this,i=e.d3,n=e.config,t=e.context=e.svg,r=e.margin.left+20.5,a=e.margin.top+.5;if("drag"===n.zoom_type&&n.zoom_enabled){var o=function(t){return t&&t.map(function(t){return e.x.invert(t)})},s=e.dragZoomBrush=i.brushX().on("start",function(){e.api.unzoom(),e.svg.select("."+Y.dragZoom).classed("disabled",!1),n.zoom_onzoomstart.call(e.api,i.event.sourceEvent)}).on("brush",function(){n.zoom_onzoom.call(e.api,o(i.event.selection))}).on("end",function(){if(null!=i.event.selection){var t=o(i.event.selection);n.zoom_disableDefaultBehavior||e.api.zoom(t),e.svg.select("."+Y.dragZoom).classed("disabled",!0),n.zoom_onzoomend.call(e.api,t)}});t.append("g").classed(Y.dragZoom,!0).attr("clip-path",e.clipPath).attr("transform","translate("+r+","+a+")").call(s)}},l.prototype.getZoomDomain=function(){var t=this.config,e=this.d3;return[e.min([this.orgXDomain[0],t.zoom_x_min]),e.max([this.orgXDomain[1],t.zoom_x_max])]},l.prototype.redrawForZoom=function(){var t=this,e=t.d3,i=t.config,n=t.zoom,r=t.x;i.zoom_enabled&&0!==t.filterTargetsToShow(t.data.targets).length&&(n.update(),i.zoom_disableDefaultBehavior||(t.isCategorized()&&r.orgDomain()[0]===t.orgXDomain[0]&&r.domain([t.orgXDomain[0]-1e-10,r.orgDomain()[1]]),t.redraw({withTransition:!1,withY:i.zoom_rescale,withSubchart:!1,withEventRect:!1,withDimension:!1}),e.event.sourceEvent&&"mousemove"===e.event.sourceEvent.type&&(t.cancelClick=!0)))},t});
\ No newline at end of file