402 lines
19 KiB
C++
402 lines
19 KiB
C++
#include <catch2/catch.hpp>
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#include "libslic3r/GCodeReader.hpp"
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#include "test_data.hpp" // get access to init_print, etc
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using namespace Slic3r::Test;
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using namespace Slic3r;
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SCENARIO("Shells", "[Shells]") {
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GIVEN("20mm box") {
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auto test = [](const DynamicPrintConfig &config){
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std::vector<coord_t> zs;
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std::set<coord_t> layers_with_solid_infill;
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std::set<coord_t> layers_with_bridge_infill;
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const double solid_infill_speed = config.opt_float("solid_infill_speed") * 60;
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const double bridge_speed = config.opt_float("bridge_speed") * 60;
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GCodeReader parser;
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parser.parse_buffer(Slic3r::Test::slice({ Slic3r::Test::TestMesh::cube_20x20x20 }, config),
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[&zs, &layers_with_solid_infill, &layers_with_bridge_infill, solid_infill_speed, bridge_speed]
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(Slic3r::GCodeReader &self, const Slic3r::GCodeReader::GCodeLine &line)
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{
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double z = line.new_Z(self);
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REQUIRE(z >= 0);
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if (z > 0) {
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coord_t scaled_z = scaled<float>(z);
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zs.emplace_back(scaled_z);
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if (line.extruding(self) && line.dist_XY(self) > 0) {
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double f = line.new_F(self);
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if (std::abs(f - solid_infill_speed) < EPSILON)
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layers_with_solid_infill.insert(scaled_z);
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if (std::abs(f - bridge_speed) < EPSILON)
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layers_with_bridge_infill.insert(scaled_z);
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}
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}
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});
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sort_remove_duplicates(zs);
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auto has_solid_infill = [&layers_with_solid_infill](coord_t z) { return layers_with_solid_infill.find(z) != layers_with_solid_infill.end(); };
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auto has_bridge_infill = [&layers_with_bridge_infill](coord_t z) { return layers_with_bridge_infill.find(z) != layers_with_bridge_infill.end(); };
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auto has_shells = [&has_solid_infill, &has_bridge_infill, &zs](int layer_idx) { coord_t z = zs[layer_idx]; return has_solid_infill(z) || has_bridge_infill(z); };
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const int bottom_solid_layers = config.opt_int("bottom_solid_layers");
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const int top_solid_layers = config.opt_int("top_solid_layers");
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THEN("correct number of bottom solid layers") {
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for (int i = 0; i < bottom_solid_layers; ++ i)
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REQUIRE(has_shells(i));
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for (int i = bottom_solid_layers; i < int(zs.size() / 2); ++ i)
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REQUIRE(! has_shells(i));
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}
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THEN("correct number of top solid layers") {
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for (int i = 0; i < top_solid_layers; ++ i)
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REQUIRE(has_shells(int(zs.size()) - i - 1));
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for (int i = top_solid_layers; i < int(zs.size() / 2); ++ i)
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REQUIRE(! has_shells(int(zs.size()) - i - 1));
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}
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if (top_solid_layers > 0) {
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THEN("solid infill speed is used on solid infill") {
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for (int i = 0; i < top_solid_layers - 1; ++ i) {
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auto z = zs[int(zs.size()) - i - 1];
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REQUIRE(has_solid_infill(z));
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REQUIRE(! has_bridge_infill(z));
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}
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}
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THEN("bridge used in first solid layer over sparse infill") {
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auto z = zs[int(zs.size()) - top_solid_layers];
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REQUIRE(! has_solid_infill(z));
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REQUIRE(has_bridge_infill(z));
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}
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}
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};
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "skirts", 0 },
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{ "perimeters", 0 },
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{ "solid_infill_speed", 99 },
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{ "top_solid_infill_speed", 99 },
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{ "bridge_speed", 72 },
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{ "first_layer_speed", "100%" },
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{ "cooling", "0" }
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});
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WHEN("three top and bottom layers") {
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// proper number of shells is applied
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config.set_deserialize_strict({
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{ "top_solid_layers", 3 },
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{ "bottom_solid_layers", 3 }
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});
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test(config);
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}
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WHEN("zero top and bottom layers") {
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// no shells are applied when both top and bottom are set to zero
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config.set_deserialize_strict({
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{ "top_solid_layers", 0 },
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{ "bottom_solid_layers", 0 }
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});
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test(config);
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}
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WHEN("three top and bottom layers, zero infill") {
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// proper number of shells is applied even when fill density is none
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config.set_deserialize_strict({
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{ "perimeters", 1 },
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{ "top_solid_layers", 3 },
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{ "bottom_solid_layers", 3 }
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});
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test(config);
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}
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}
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}
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static std::set<double> layers_with_speed(const std::string &gcode, int speed)
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{
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std::set<double> out;
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GCodeReader parser;
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parser.parse_buffer(gcode, [&out, speed](Slic3r::GCodeReader &self, const Slic3r::GCodeReader::GCodeLine &line) {
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if (line.extruding(self) && is_approx<double>(line.new_F(self), speed * 60.))
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out.insert(self.z());
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});
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return out;
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}
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SCENARIO("Shells (from Perl)", "[Shells]") {
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GIVEN("V shape, Slic3r GH #1161") {
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int solid_speed = 99;
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "layer_height", 0.3 },
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{ "first_layer_height", 0.3 },
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{ "bottom_solid_layers", 0 },
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{ "top_solid_layers", 3 },
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// to prevent speeds from being altered
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{ "cooling", "0" },
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{ "bridge_speed", solid_speed },
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{ "solid_infill_speed", solid_speed },
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{ "top_solid_infill_speed", solid_speed },
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// to prevent speeds from being altered
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{ "first_layer_speed", "100%" },
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// prevent speed alteration
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{ "enable_dynamic_overhang_speeds", 0 }
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});
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THEN("correct number of top solid shells is generated in V-shaped object") {
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size_t n = 0;
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for (auto z : layers_with_speed(Slic3r::Test::slice({TestMesh::V}, config), solid_speed))
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if (z <= 7.2)
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++ n;
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REQUIRE(n == 3);
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}
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}
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GIVEN("V shape") {
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// we need to check against one perimeter because this test is calibrated
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// (shape, extrusion_width) so that perimeters cover the bottom surfaces of
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// their lower layer - the test checks that shells are not generated on the
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// above layers (thus 'across' the shadow perimeter)
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// the test is actually calibrated to leave a narrow bottom region for each
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// layer - we test that in case of fill_density = 0 such narrow shells are
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// discarded instead of grown
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int bottom_solid_layers = 3;
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "perimeters", 1 },
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{ "fill_density", 0 },
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// to prevent speeds from being altered
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{ "cooling", "0" },
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// to prevent speeds from being altered
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{ "first_layer_speed", "100%" },
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// prevent speed alteration
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{ "enable_dynamic_overhang_speeds", 0 },
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{ "layer_height", 0.4 },
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{ "first_layer_height", 0.4 },
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{ "extrusion_width", 0.55 },
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{ "bottom_solid_layers", bottom_solid_layers },
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{ "top_solid_layers", 0 },
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{ "solid_infill_speed", 99 }
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});
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THEN("shells are not propagated across perimeters of the neighbor layer") {
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std::string gcode = Slic3r::Test::slice({TestMesh::V}, config);
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REQUIRE(layers_with_speed(gcode, 99).size() == bottom_solid_layers);
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}
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}
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GIVEN("sloping_hole") {
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int bottom_solid_layers = 3;
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int top_solid_layers = 3;
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int solid_speed = 99;
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "perimeters", 3 },
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// to prevent speeds from being altered
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{ "cooling", "0" },
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// to prevent speeds from being altered
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{ "first_layer_speed", "100%" },
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// prevent speed alteration
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{ "enable_dynamic_overhang_speeds", 0 },
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{ "layer_height", 0.4 },
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{ "first_layer_height", 0.4 },
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{ "bottom_solid_layers", bottom_solid_layers },
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{ "top_solid_layers", top_solid_layers },
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{ "solid_infill_speed", solid_speed },
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{ "top_solid_infill_speed", solid_speed },
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{ "bridge_speed", solid_speed },
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{ "filament_diameter", 3. },
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{ "nozzle_diameter", 0.5 }
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});
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THEN("no superfluous shells are generated") {
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std::string gcode = Slic3r::Test::slice({TestMesh::sloping_hole}, config);
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REQUIRE(layers_with_speed(gcode, solid_speed).size() == bottom_solid_layers + top_solid_layers);
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}
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}
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GIVEN("20mm_cube, spiral vase") {
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double layer_height = 0.3;
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "perimeters", 1 },
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{ "fill_density", 0 },
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{ "layer_height", layer_height },
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{ "first_layer_height", layer_height },
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{ "top_solid_layers", 0 },
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{ "spiral_vase", 1 },
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{ "bottom_solid_layers", 0 },
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{ "skirts", 0 },
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{ "start_gcode", "" },
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{ "temperature", 200 },
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{ "first_layer_temperature", 205}
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});
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// TODO: this needs to be tested with a model with sloping edges, where starting
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// points of each layer are not aligned - in that case we would test that no
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// travel moves are left to move to the new starting point - in a cube, end
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// points coincide with next layer starting points (provided there's no clipping)
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auto test = [layer_height](const DynamicPrintConfig &config) {
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size_t travel_moves_after_first_extrusion = 0;
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bool started_extruding = false;
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bool first_layer_temperature_set = false;
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bool temperature_set = false;
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std::vector<double> z_steps;
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GCodeReader parser;
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parser.parse_buffer(Slic3r::Test::slice({TestMesh::cube_20x20x20}, config),
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[&](Slic3r::GCodeReader &self, const Slic3r::GCodeReader::GCodeLine &line) {
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if (line.cmd_is("G1")) {
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if (line.extruding(self))
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started_extruding = true;
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if (started_extruding) {
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if (double dz = line.dist_Z(self); dz > 0)
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z_steps.emplace_back(dz);
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if (line.travel() && line.dist_XY(self) > 0 && ! line.has(Z))
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++ travel_moves_after_first_extrusion;
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}
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} else if (line.cmd_is("M104")) {
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int s;
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if (line.has_value('S', s)) {
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if (s == 205)
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first_layer_temperature_set = true;
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else if (s == 200)
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temperature_set = true;
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}
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}
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});
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THEN("first layer temperature is set") {
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REQUIRE(first_layer_temperature_set);
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}
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THEN("temperature is set") {
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REQUIRE(temperature_set);
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}
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// we allow one travel move after first extrusion: i.e. when moving to the first
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// spiral point after moving to second layer (bottom layer had loop clipping, so
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// we're slightly distant from the starting point of the loop)
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THEN("no gaps in spiral vase") {
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REQUIRE(travel_moves_after_first_extrusion <= 1);
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}
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THEN("no gaps in Z") {
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REQUIRE(std::count_if(z_steps.begin(), z_steps.end(),
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[&layer_height](auto z_step) { return z_step > layer_height + EPSILON; }) == 0);
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}
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};
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WHEN("solid model") {
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test(config);
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}
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WHEN("solid model with negative z-offset") {
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config.set_deserialize_strict("z_offset", "-10");
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test(config);
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}
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// Disabled because the current unreliable medial axis code doesn't always produce valid loops.
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// $test->('40x10', 'hollow model with negative z-offset');
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}
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GIVEN("20mm_cube, spiral vase") {
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double layer_height = 0.4;
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auto config = Slic3r::DynamicPrintConfig::full_print_config_with({
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{ "spiral_vase", 1 },
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{ "perimeters", 1 },
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{ "fill_density", 0 },
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{ "top_solid_layers", 0 },
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{ "bottom_solid_layers", 0 },
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{ "retract_layer_change", 0 },
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{ "skirts", 0 },
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{ "layer_height", layer_height },
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{ "first_layer_height", layer_height },
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{ "start_gcode", "" },
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// { "use_relative_e_distances", 1}
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});
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config.validate();
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std::vector<std::pair<double, double>> this_layer; // [ dist_Z, dist_XY ], ...
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int z_moves = 0;
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bool bottom_layer_not_flat = false;
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bool null_z_moves_not_layer_changes = false;
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bool null_z_moves_not_multiples_of_layer_height = false;
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bool sum_of_partial_z_equals_to_layer_height = false;
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bool all_layer_segments_have_same_slope = false;
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bool horizontal_extrusions = false;
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GCodeReader parser;
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parser.parse_buffer(Slic3r::Test::slice({TestMesh::cube_20x20x20}, config),
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[&](Slic3r::GCodeReader &self, const Slic3r::GCodeReader::GCodeLine &line) {
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if (line.cmd_is("G1")) {
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if (z_moves < 2) {
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// skip everything up to the second Z move
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// (i.e. start of second layer)
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if (line.has(Z)) {
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++ z_moves;
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if (double dz = line.dist_Z(self); dz > 0 && ! is_approx<double>(dz, layer_height))
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bottom_layer_not_flat = true;
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}
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} else if (line.dist_Z(self) == 0 && line.has(Z)) {
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if (line.dist_XY(self) != 0)
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null_z_moves_not_layer_changes = true;
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double z = line.new_Z(self);
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if (fmod(z + EPSILON, layer_height) > 2 * EPSILON)
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null_z_moves_not_multiples_of_layer_height = true;
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double total_dist_XY = 0;
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double total_dist_Z = 0;
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for (auto &seg : this_layer) {
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total_dist_Z += seg.first;
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total_dist_XY += seg.second;
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}
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if (std::abs(total_dist_Z - layer_height) >
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// The first segment on the 2nd layer has extrusion interpolated from zero
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// and the 1st segment has such a low extrusion assigned, that it is effectively zero, thus the move
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// is considered non-extruding and a higher epsilon is required.
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(z_moves == 2 ? 0.0021 : EPSILON))
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sum_of_partial_z_equals_to_layer_height = true;
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//printf("Total height: %f, layer height: %f, good: %d\n", sum(map $_->[0], @this_layer), $config->layer_height, $sum_of_partial_z_equals_to_layer_height);
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for (auto &seg : this_layer)
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// check that segment's dist_Z is proportioned to its dist_XY
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if (std::abs(seg.first * total_dist_XY / layer_height - seg.second) > 0.2)
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all_layer_segments_have_same_slope = true;
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this_layer.clear();
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} else if (line.extruding(self) && line.dist_XY(self) > 0) {
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if (line.dist_Z(self) == 0)
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horizontal_extrusions = true;
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//printf("Pushing dist_z: %f, dist_xy: %f\n", $info->{dist_Z}, $info->{dist_XY});
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this_layer.emplace_back(line.dist_Z(self), line.dist_XY(self));
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}
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}
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});
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THEN("bottom layer is flat when using spiral vase") {
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REQUIRE(! bottom_layer_not_flat);
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}
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THEN("null Z moves are layer changes") {
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REQUIRE(! null_z_moves_not_layer_changes);
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}
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THEN("null Z moves are multiples of layer height") {
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REQUIRE(! null_z_moves_not_multiples_of_layer_height);
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}
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THEN("sum of partial Z increments equals to a full layer height") {
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REQUIRE(! sum_of_partial_z_equals_to_layer_height);
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}
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THEN("all layer segments have the same slope") {
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REQUIRE(! all_layer_segments_have_same_slope);
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}
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THEN("no horizontal extrusions") {
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REQUIRE(! horizontal_extrusions);
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}
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}
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}
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#if 0
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// The current Spiral Vase slicing code removes the holes and all but the largest contours from each slice,
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// therefore the following test is no more valid.
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{
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my $config = Slic3r::Config::new_from_defaults;
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$config->set('perimeters', 1);
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$config->set('fill_density', 0);
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$config->set('top_solid_layers', 0);
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$config->set('spiral_vase', 1);
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$config->set('bottom_solid_layers', 0);
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$config->set('skirts', 0);
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$config->set('first_layer_height', $config->layer_height);
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$config->set('start_gcode', '');
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my $print = Slic3r::Test::init_print('two_hollow_squares', config => $config);
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my $diagonal_moves = 0;
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Slic3r::GCode::Reader->new->parse(Slic3r::Test::gcode($print), sub {
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my ($self, $cmd, $args, $info) = @_;
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if ($cmd eq 'G1') {
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if ($info->{extruding} && $info->{dist_XY} > 0) {
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if ($info->{dist_Z} > 0) {
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$diagonal_moves++;
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}
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}
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}
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});
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is $diagonal_moves, 0, 'no spiral moves on two-island object';
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}
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#endif
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