245 lines
7.5 KiB
C++
245 lines
7.5 KiB
C++
#include <unordered_set>
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#include <unordered_map>
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#include <random>
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#include <numeric>
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#include <cstdint>
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#include "sla_test_utils.hpp"
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#include <libslic3r/TriangleMeshSlicer.hpp>
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#include <libslic3r/SLA/SupportTreeMesher.hpp>
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#include <libslic3r/SLA/Concurrency.hpp>
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namespace {
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const char *const BELOW_PAD_TEST_OBJECTS[] = {
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"20mm_cube.obj",
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"V.obj",
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};
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const char *const AROUND_PAD_TEST_OBJECTS[] = {
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"20mm_cube.obj",
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"V.obj",
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"frog_legs.obj",
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"cube_with_concave_hole_enlarged.obj",
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};
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const char *const SUPPORT_TEST_MODELS[] = {
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"cube_with_concave_hole_enlarged_standing.obj",
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"A_upsidedown.obj",
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"extruder_idler.obj"
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};
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} // namespace
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TEST_CASE("Pillar pairhash should be unique", "[SLASupportGeneration]") {
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test_pairhash<int, int>();
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test_pairhash<int, long>();
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test_pairhash<unsigned, unsigned>();
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test_pairhash<unsigned, unsigned long>();
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}
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TEST_CASE("Support point generator should be deterministic if seeded",
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"[SLASupportGeneration], [SLAPointGen]") {
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TriangleMesh mesh = load_model("A_upsidedown.obj");
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sla::IndexedMesh emesh{mesh};
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sla::SupportTreeConfig supportcfg;
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sla::SupportPointGenerator::Config autogencfg;
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autogencfg.head_diameter = float(2 * supportcfg.head_front_radius_mm);
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sla::SupportPointGenerator point_gen{emesh, autogencfg, [] {}, [](int) {}};
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auto bb = mesh.bounding_box();
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double zmin = bb.min.z();
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double zmax = bb.max.z();
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double gnd = zmin - supportcfg.object_elevation_mm;
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auto layer_h = 0.05f;
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auto slicegrid = grid(float(gnd), float(zmax), layer_h);
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std::vector<ExPolygons> slices = slice_mesh_ex(mesh.its, slicegrid, CLOSING_RADIUS);
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point_gen.seed(0);
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point_gen.execute(slices, slicegrid);
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auto get_chksum = [](const std::vector<sla::SupportPoint> &pts){
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int64_t chksum = 0;
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for (auto &pt : pts) {
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auto p = scaled(pt.pos);
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chksum += p.x() + p.y() + p.z();
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}
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return chksum;
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};
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int64_t checksum = get_chksum(point_gen.output());
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size_t ptnum = point_gen.output().size();
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REQUIRE(point_gen.output().size() > 0);
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for (int i = 0; i < 20; ++i) {
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point_gen.output().clear();
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point_gen.seed(0);
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point_gen.execute(slices, slicegrid);
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REQUIRE(point_gen.output().size() == ptnum);
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REQUIRE(checksum == get_chksum(point_gen.output()));
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}
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}
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TEST_CASE("Flat pad geometry is valid", "[SLASupportGeneration]") {
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sla::PadConfig padcfg;
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// Disable wings
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padcfg.wall_height_mm = .0;
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for (auto &fname : BELOW_PAD_TEST_OBJECTS) test_pad(fname, padcfg);
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}
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TEST_CASE("WingedPadGeometryIsValid", "[SLASupportGeneration]") {
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sla::PadConfig padcfg;
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// Add some wings to the pad to test the cavity
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padcfg.wall_height_mm = 1.;
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for (auto &fname : BELOW_PAD_TEST_OBJECTS) test_pad(fname, padcfg);
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}
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TEST_CASE("FlatPadAroundObjectIsValid", "[SLASupportGeneration]") {
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sla::PadConfig padcfg;
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// Add some wings to the pad to test the cavity
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padcfg.wall_height_mm = 0.;
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// padcfg.embed_object.stick_stride_mm = 0.;
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padcfg.embed_object.enabled = true;
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padcfg.embed_object.everywhere = true;
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for (auto &fname : AROUND_PAD_TEST_OBJECTS) test_pad(fname, padcfg);
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}
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TEST_CASE("WingedPadAroundObjectIsValid", "[SLASupportGeneration]") {
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sla::PadConfig padcfg;
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// Add some wings to the pad to test the cavity
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padcfg.wall_height_mm = 1.;
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padcfg.embed_object.enabled = true;
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padcfg.embed_object.everywhere = true;
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for (auto &fname : AROUND_PAD_TEST_OBJECTS) test_pad(fname, padcfg);
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}
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TEST_CASE("ElevatedSupportGeometryIsValid", "[SLASupportGeneration]") {
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sla::SupportTreeConfig supportcfg;
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supportcfg.object_elevation_mm = 10.;
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for (auto fname : SUPPORT_TEST_MODELS) test_supports(fname, supportcfg);
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}
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TEST_CASE("FloorSupportGeometryIsValid", "[SLASupportGeneration]") {
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sla::SupportTreeConfig supportcfg;
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supportcfg.object_elevation_mm = 0;
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for (auto &fname: SUPPORT_TEST_MODELS) test_supports(fname, supportcfg);
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}
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TEST_CASE("ElevatedSupportsDoNotPierceModel", "[SLASupportGeneration]") {
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sla::SupportTreeConfig supportcfg;
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for (auto fname : SUPPORT_TEST_MODELS)
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test_support_model_collision(fname, supportcfg);
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}
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TEST_CASE("FloorSupportsDoNotPierceModel", "[SLASupportGeneration]") {
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sla::SupportTreeConfig supportcfg;
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supportcfg.object_elevation_mm = 0;
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for (auto fname : SUPPORT_TEST_MODELS)
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test_support_model_collision(fname, supportcfg);
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}
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TEST_CASE("InitializedRasterShouldBeNONEmpty", "[SLARasterOutput]") {
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// Default Prusa SL1 display parameters
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sla::Resolution res{2560, 1440};
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sla::PixelDim pixdim{120. / res.width_px, 68. / res.height_px};
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sla::RasterGrayscaleAAGammaPower raster(res, pixdim, {}, 1.);
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REQUIRE(raster.resolution().width_px == res.width_px);
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REQUIRE(raster.resolution().height_px == res.height_px);
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REQUIRE(raster.pixel_dimensions().w_mm == Approx(pixdim.w_mm));
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REQUIRE(raster.pixel_dimensions().h_mm == Approx(pixdim.h_mm));
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}
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TEST_CASE("MirroringShouldBeCorrect", "[SLARasterOutput]") {
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sla::RasterBase::TMirroring mirrorings[] = {sla::RasterBase::NoMirror,
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sla::RasterBase::MirrorX,
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sla::RasterBase::MirrorY,
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sla::RasterBase::MirrorXY};
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sla::RasterBase::Orientation orientations[] =
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{sla::RasterBase::roLandscape, sla::RasterBase::roPortrait};
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for (auto orientation : orientations)
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for (auto &mirror : mirrorings)
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check_raster_transformations(orientation, mirror);
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}
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TEST_CASE("RasterizedPolygonAreaShouldMatch", "[SLARasterOutput]") {
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double disp_w = 120., disp_h = 68.;
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sla::Resolution res{2560, 1440};
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sla::PixelDim pixdim{disp_w / res.width_px, disp_h / res.height_px};
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double gamma = 1.;
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sla::RasterGrayscaleAAGammaPower raster(res, pixdim, {}, gamma);
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auto bb = BoundingBox({0, 0}, {scaled(disp_w), scaled(disp_h)});
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ExPolygon poly = square_with_hole(10.);
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poly.translate(bb.center().x(), bb.center().y());
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raster.draw(poly);
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double a = poly.area() / (scaled<double>(1.) * scaled(1.));
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double ra = raster_white_area(raster);
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double diff = std::abs(a - ra);
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REQUIRE(diff <= predict_error(poly, pixdim));
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raster.clear();
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poly = square_with_hole(60.);
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poly.translate(bb.center().x(), bb.center().y());
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raster.draw(poly);
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a = poly.area() / (scaled<double>(1.) * scaled(1.));
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ra = raster_white_area(raster);
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diff = std::abs(a - ra);
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REQUIRE(diff <= predict_error(poly, pixdim));
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sla::RasterGrayscaleAA raster0(res, pixdim, {}, [](double) { return 0.; });
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REQUIRE(raster_pxsum(raster0) == 0);
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raster0.draw(poly);
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ra = raster_white_area(raster);
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REQUIRE(raster_pxsum(raster0) == 0);
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}
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TEST_CASE("halfcone test", "[halfcone]") {
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sla::DiffBridge br{Vec3d{1., 1., 1.}, Vec3d{10., 10., 10.}, 0.25, 0.5};
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indexed_triangle_set m = sla::get_mesh(br, 45);
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its_merge_vertices(m);
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its_write_obj(m, "Halfcone.obj");
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}
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TEST_CASE("Test concurrency")
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{
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std::vector<double> vals = grid(0., 100., 10.);
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double ref = std::accumulate(vals.begin(), vals.end(), 0.);
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double s = execution::accumulate(ex_tbb, vals.begin(), vals.end(), 0.);
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REQUIRE(s == Approx(ref));
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}
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