1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/chroma-js/src/utils.coffee b/node_modules/chroma-js/src/utils.coffee
new file mode 100644
index 0000000000..afce1e772e
--- /dev/null
+++ b/node_modules/chroma-js/src/utils.coffee
@@ -0,0 +1,61 @@
+###
+    chroma.js
+
+    Copyright (c) 2011-2013, Gregor Aisch
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this
+      list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    * The name Gregor Aisch may not be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+    OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+    EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+    @source: https://github.com/gka/chroma.js
+###
+
+type = do ->
+    ###
+    for browser-safe type checking+
+    ported from jQuery's $.type
+    ###
+    classToType = {}
+    for name in "Boolean Number String Function Array Date RegExp Undefined Null".split(" ")
+        classToType["[object " + name + "]"] = name.toLowerCase()
+
+    (obj) ->
+        strType = Object::toString.call(obj)
+        classToType[strType] or "object"
+
+
+limit = (x, min=0, max=1) ->
+    x = min if x < min
+    x = max if x > max
+    x
+
+unpack = (args) ->
+    if args.length >= 3
+        args
+    else
+        args[0]
+
+TWOPI = Math.PI*2
+PITHIRD = Math.PI/3
+cos = Math.cos