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81d9724436
Split the function expand_bridges_detect_orientations into multiple functions. And allow any number of expansion zones by using a vector instead of explicitly listing the parameters.
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
#include "libslic3r/ClipperUtils.hpp"
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#include "libslic3r/Point.hpp"
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#include "libslic3r/SVG.hpp"
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#include <catch2/catch.hpp>
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#include <libslic3r/LayerRegion.hpp>
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using namespace Slic3r;
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constexpr bool export_svgs = true;
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ExPolygon rectangle(const Point& origin, const int width, const int height) {
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return {
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origin,
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origin + Point{width, 0},
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origin + Point{width, height},
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origin + Point{0, height},
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};
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}
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TEST_CASE("test the bridge expansion with the bridge angle detection", "[LayerRegion]") {
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using namespace Slic3r::Algorithm;
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Surfaces surfaces{
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Surface{
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stBottomBridge,
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rectangle({scaled(-1.0), scaled(0.0)}, scaled(1.0), scaled(1.0))
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},
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Surface{
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stBottomBridge,
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rectangle({scaled(0.0), scaled(0.0)}, scaled(1.0), scaled(1.0))
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},
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Surface{
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stBottomBridge,
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rectangle({scaled(-3.0), scaled(0.0)}, scaled(1.0), scaled(1.0))
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}
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};
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ExPolygons shells{{
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rectangle({scaled(-1.0), scaled(1.0)}, scaled(3.0), scaled(1.0))
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}};
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ExPolygons sparse {{
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rectangle({scaled(-2.0), scaled(-1.0)}, scaled(1.0), scaled(3.0))
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}};
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const float scaled_spacing{scaled(0.3)};
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static constexpr const float expansion_step = scaled<float>(0.1);
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static constexpr const size_t max_nr_expansion_steps = 5;
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const float closing_radius = 0.55f * 0.65f * 1.05f * scaled_spacing;
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const int shells_expansion_depth = scaled(0.6);
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const auto expansion_params_into_solid_infill = RegionExpansionParameters::build(
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shells_expansion_depth,
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expansion_step,
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max_nr_expansion_steps
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);
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const int sparse_expansion_depth = scaled(0.3);
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const auto expansion_params_into_sparse_infill = RegionExpansionParameters::build(
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sparse_expansion_depth,
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expansion_step,
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max_nr_expansion_steps
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);
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std::vector<ExpansionZone> expansion_zones{
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ExpansionZone{
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std::move(shells),
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expansion_params_into_solid_infill,
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},
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ExpansionZone{
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std::move(sparse),
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expansion_params_into_sparse_infill,
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}
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};
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Surfaces result{expand_bridges_detect_orientations(
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surfaces,
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expansion_zones,
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closing_radius
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)};
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if constexpr (export_svgs) {
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SVG svg("bridge_expansion.svg", BoundingBox{
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Point{scaled(-3.0), scaled(-1.0)},
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Point{scaled(2.0), scaled(2.0)}
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});
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svg.draw(surfaces, "blue");
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svg.draw(expansion_zones[0].expolygons, "green");
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svg.draw(expansion_zones[1].expolygons, "red");
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svg.draw_outline(result, "black", "", scale_(0.01));
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}
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REQUIRE(result.size() == 2);
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CHECK(result.at(0).bridge_angle == Approx(1.5707963268));
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CHECK(result.at(1).bridge_angle == Approx(0));
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CHECK(result.at(0).expolygon.contour.size() == 22);
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CHECK(result.at(1).expolygon.contour.size() == 14);
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// These lines in the polygons should correspond to the expansion depth.
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CHECK(result.at(0).expolygon.contour.lines().at(2).length() == shells_expansion_depth);
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CHECK(result.at(1).expolygon.contour.lines().at(7).length() == sparse_expansion_depth);
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CHECK(result.at(1).expolygon.contour.lines().at(11).length() == sparse_expansion_depth);
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CHECK(intersection_ex({result.at(0).expolygon}, expansion_zones[0].expolygons).size() == 0);
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CHECK(intersection_ex({result.at(0).expolygon}, expansion_zones[1].expolygons).size() == 0);
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CHECK(intersection_ex({result.at(1).expolygon}, expansion_zones[0].expolygons).size() == 0);
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CHECK(intersection_ex({result.at(1).expolygon}, expansion_zones[1].expolygons).size() == 0);
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}
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