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#include <catch2/catch.hpp>
#include <numeric>
#include <sstream>
#include "test_data.hpp" // get access to init_print, etc
#include "libslic3r/Config.hpp"
#include "libslic3r/Model.hpp"
#include "libslic3r/Config.hpp"
#include "libslic3r/GCodeReader.hpp"
#include "libslic3r/Flow.hpp"
#include "libslic3r/libslic3r.h"
using namespace Slic3r::Test;
using namespace Slic3r;
SCENARIO("Extrusion width specifics", "[Flow]") {
GIVEN("A config with a skirt, brim, some fill density, 3 perimeters, and 1 bottom solid layer and a 20mm cube mesh") {
// this is a sharedptr
DynamicPrintConfig config = Slic3r::DynamicPrintConfig::full_print_config();
config.set_deserialize({
{ "brim_width", 2 },
{ "skirts", 1 },
{ "perimeters", 3 },
{ "fill_density", "40%" },
{ "first_layer_height", "100%" }
});
WHEN("first layer width set to 2mm") {
Slic3r::Model model;
config.set("first_layer_extrusion_width", 2);
Slic3r::Print print;
Slic3r::Test::init_print({TestMesh::cube_20x20x20}, print, model, config);
std::vector<double> E_per_mm_bottom;
std::string gcode = Test::gcode(print);
Slic3r::GCodeReader parser;
const double layer_height = config.opt_float("layer_height");
parser.parse_buffer(gcode, [&E_per_mm_bottom, layer_height] (Slic3r::GCodeReader& self, const Slic3r::GCodeReader::GCodeLine& line)
{
if (self.z() == Approx(layer_height).margin(0.01)) { // only consider first layer
if (line.extruding(self) && line.dist_XY(self) > 0) {
E_per_mm_bottom.emplace_back(line.dist_E(self) / line.dist_XY(self));
}
}
});
THEN(" First layer width applies to everything on first layer.") {
bool pass = false;
double avg_E = std::accumulate(E_per_mm_bottom.cbegin(), E_per_mm_bottom.cend(), 0.0) / static_cast<double>(E_per_mm_bottom.size());
pass = (std::count_if(E_per_mm_bottom.cbegin(), E_per_mm_bottom.cend(), [avg_E] (const double& v) { return v == Approx(avg_E); }) == 0);
REQUIRE(pass == true);
REQUIRE(E_per_mm_bottom.size() > 0); // make sure it actually passed because of extrusion
}
THEN(" First layer width does not apply to upper layer.") {
}
}
}
}
// needs gcode export
SCENARIO(" Bridge flow specifics.", "[Flow]") {
GIVEN("A default config with no cooling and a fixed bridge speed, flow ratio and an overhang mesh.") {
WHEN("bridge_flow_ratio is set to 1.0") {
THEN("Output flow is as expected.") {
}
}
WHEN("bridge_flow_ratio is set to 0.5") {
THEN("Output flow is as expected.") {
}
}
WHEN("bridge_flow_ratio is set to 2.0") {
THEN("Output flow is as expected.") {
}
}
}
GIVEN("A default config with no cooling and a fixed bridge speed, flow ratio, fixed extrusion width of 0.4mm and an overhang mesh.") {
WHEN("bridge_flow_ratio is set to 1.0") {
THEN("Output flow is as expected.") {
}
}
WHEN("bridge_flow_ratio is set to 0.5") {
THEN("Output flow is as expected.") {
}
}
WHEN("bridge_flow_ratio is set to 2.0") {
THEN("Output flow is as expected.") {
}
}
}
}
/// Test the expected behavior for auto-width,
/// spacing, etc
SCENARIO("Flow: Flow math for non-bridges", "[Flow]") {
GIVEN("Nozzle Diameter of 0.4, a desired width of 1mm and layer height of 0.5") {
ConfigOptionFloatOrPercent width(1.0, false);
float nozzle_diameter = 0.4f;
float bridge_flow = 0.f;
float layer_height = 0.5f;
// Spacing for non-bridges is has some overlap
THEN("External perimeter flow has spacing fixed to 1.125 * nozzle_diameter") {
auto flow = Flow::new_from_config_width(frExternalPerimeter, ConfigOptionFloatOrPercent(0, false), nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.spacing() == Approx(1.125 * nozzle_diameter - layer_height * (1.0 - PI / 4.0)));
}
THEN("Internal perimeter flow has spacing fixed to 1.125 * nozzle_diameter") {
auto flow = Flow::new_from_config_width(frPerimeter, ConfigOptionFloatOrPercent(0, false), nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.spacing() == Approx(1.125 *nozzle_diameter - layer_height * (1.0 - PI / 4.0)));
}
THEN("Spacing for supplied width is 0.8927f") {
auto flow = Flow::new_from_config_width(frExternalPerimeter, width, nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.spacing() == Approx(width.value - layer_height * (1.0 - PI / 4.0)));
flow = Flow::new_from_config_width(frPerimeter, width, nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.spacing() == Approx(width.value - layer_height * (1.0 - PI / 4.0)));
}
}
/// Check the min/max
GIVEN("Nozzle Diameter of 0.25") {
float nozzle_diameter = 0.25f;
float bridge_flow = 0.f;
float layer_height = 0.5f;
WHEN("layer height is set to 0.2") {
layer_height = 0.15f;
THEN("Max width is set.") {
auto flow = Flow::new_from_config_width(frPerimeter, ConfigOptionFloatOrPercent(0, false), nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.width == Approx(1.125 * nozzle_diameter));
}
}
WHEN("Layer height is set to 0.2") {
layer_height = 0.3f;
THEN("Min width is set.") {
auto flow = Flow::new_from_config_width(frPerimeter, ConfigOptionFloatOrPercent(0, false), nozzle_diameter, layer_height, bridge_flow);
REQUIRE(flow.width == Approx(1.125 * nozzle_diameter));
}
}
}
#if 0
/// Check for an edge case in the maths where the spacing could be 0; original
/// math is 0.99. Slic3r issue #4654
GIVEN("Input spacing of 0.414159 and a total width of 2") {
double in_spacing = 0.414159;
double total_width = 2.0;
auto flow = Flow::new_from_spacing(1.0, 0.4, 0.3, false);
WHEN("solid_spacing() is called") {
double result = flow.solid_spacing(total_width, in_spacing);
THEN("Yielded spacing is greater than 0") {
REQUIRE(result > 0);
}
}
}
#endif
}
/// Spacing, width calculation for bridge extrusions
SCENARIO("Flow: Flow math for bridges", "[Flow]") {
GIVEN("Nozzle Diameter of 0.4, a desired width of 1mm and layer height of 0.5") {
auto width = ConfigOptionFloatOrPercent(1.0, false);
float nozzle_diameter = 0.4f;
float bridge_flow = 1.0f;
float layer_height = 0.5f;
WHEN("Flow role is frExternalPerimeter") {
auto flow = Flow::new_from_config_width(frExternalPerimeter, width, nozzle_diameter, layer_height, bridge_flow);
THEN("Bridge width is same as nozzle diameter") {
REQUIRE(flow.width == Approx(nozzle_diameter));
}
THEN("Bridge spacing is same as nozzle diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter") {
REQUIRE(flow.spacing() == Approx(nozzle_diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter));
}
}
WHEN("Flow role is frInfill") {
auto flow = Flow::new_from_config_width(frInfill, width, nozzle_diameter, layer_height, bridge_flow);
THEN("Bridge width is same as nozzle diameter") {
REQUIRE(flow.width == Approx(nozzle_diameter));
}
THEN("Bridge spacing is same as nozzle diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter") {
REQUIRE(flow.spacing() == Approx(nozzle_diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter));
}
}
WHEN("Flow role is frPerimeter") {
auto flow = Flow::new_from_config_width(frPerimeter, width, nozzle_diameter, layer_height, bridge_flow);
THEN("Bridge width is same as nozzle diameter") {
REQUIRE(flow.width == Approx(nozzle_diameter));
}
THEN("Bridge spacing is same as nozzle diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter") {
REQUIRE(flow.spacing() == Approx(nozzle_diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter));
}
}
WHEN("Flow role is frSupportMaterial") {
auto flow = Flow::new_from_config_width(frSupportMaterial, width, nozzle_diameter, layer_height, bridge_flow);
THEN("Bridge width is same as nozzle diameter") {
REQUIRE(flow.width == Approx(nozzle_diameter));
}
THEN("Bridge spacing is same as nozzle diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter") {
REQUIRE(flow.spacing() == Approx(nozzle_diameter + BRIDGE_EXTRA_SPACING_MULT * nozzle_diameter));
}
}
}
}
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