134 lines
5.2 KiB
C++
134 lines
5.2 KiB
C++
#include <catch2/catch.hpp>
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#include "libslic3r/Model.hpp"
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#include "libslic3r/Format/3mf.hpp"
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#include "libslic3r/Format/STL.hpp"
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#include <boost/filesystem/operations.hpp>
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using namespace Slic3r;
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SCENARIO("Reading 3mf file", "[3mf]") {
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GIVEN("umlauts in the path of the file") {
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Model model;
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WHEN("3mf model is read") {
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std::string path = std::string(TEST_DATA_DIR) + "/test_3mf/Geräte/Büchse.3mf";
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DynamicPrintConfig config;
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ConfigSubstitutionContext ctxt{ ForwardCompatibilitySubstitutionRule::Disable };
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bool ret = load_3mf(path.c_str(), config, ctxt, &model, false);
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THEN("load should succeed") {
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REQUIRE(ret);
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}
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}
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}
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}
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SCENARIO("Export+Import geometry to/from 3mf file cycle", "[3mf]") {
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GIVEN("world vertices coordinates before save") {
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// load a model from stl file
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Model src_model;
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std::string src_file = std::string(TEST_DATA_DIR) + "/test_3mf/Prusa.stl";
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load_stl(src_file.c_str(), &src_model);
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src_model.add_default_instances();
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ModelObject* src_object = src_model.objects.front();
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// apply generic transformation to the 1st volume
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Geometry::Transformation src_volume_transform;
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src_volume_transform.set_offset({ 10.0, 20.0, 0.0 });
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src_volume_transform.set_rotation({ Geometry::deg2rad(25.0), Geometry::deg2rad(35.0), Geometry::deg2rad(45.0) });
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src_volume_transform.set_scaling_factor({ 1.1, 1.2, 1.3 });
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src_volume_transform.set_mirror({ -1.0, 1.0, -1.0 });
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src_object->volumes.front()->set_transformation(src_volume_transform);
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// apply generic transformation to the 1st instance
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Geometry::Transformation src_instance_transform;
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src_instance_transform.set_offset({ 5.0, 10.0, 0.0 });
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src_instance_transform.set_rotation({ Geometry::deg2rad(12.0), Geometry::deg2rad(13.0), Geometry::deg2rad(14.0) });
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src_instance_transform.set_scaling_factor({ 0.9, 0.8, 0.7 });
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src_instance_transform.set_mirror({ 1.0, -1.0, -1.0 });
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src_object->instances.front()->set_transformation(src_instance_transform);
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WHEN("model is saved+loaded to/from 3mf file") {
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// save the model to 3mf file
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std::string test_file = std::string(TEST_DATA_DIR) + "/test_3mf/prusa.3mf";
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store_3mf(test_file.c_str(), &src_model, nullptr, false);
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// load back the model from the 3mf file
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Model dst_model;
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DynamicPrintConfig dst_config;
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{
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ConfigSubstitutionContext ctxt{ ForwardCompatibilitySubstitutionRule::Disable };
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load_3mf(test_file.c_str(), dst_config, ctxt, &dst_model, false);
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}
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boost::filesystem::remove(test_file);
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// compare meshes
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TriangleMesh src_mesh = src_model.mesh();
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TriangleMesh dst_mesh = dst_model.mesh();
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bool res = src_mesh.its.vertices.size() == dst_mesh.its.vertices.size();
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if (res) {
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for (size_t i = 0; i < dst_mesh.its.vertices.size(); ++i) {
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res &= dst_mesh.its.vertices[i].isApprox(src_mesh.its.vertices[i]);
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}
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}
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THEN("world vertices coordinates after load match") {
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REQUIRE(res);
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}
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}
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}
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}
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SCENARIO("2D convex hull of sinking object", "[3mf]") {
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GIVEN("model") {
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// load a model
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Model model;
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std::string src_file = std::string(TEST_DATA_DIR) + "/test_3mf/Prusa.stl";
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load_stl(src_file.c_str(), &model);
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model.add_default_instances();
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WHEN("model is rotated, scaled and set as sinking") {
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ModelObject* object = model.objects.front();
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object->center_around_origin(false);
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// set instance's attitude so that it is rotated, scaled and sinking
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ModelInstance* instance = object->instances.front();
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instance->set_rotation(X, -M_PI / 4.0);
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instance->set_offset(Vec3d::Zero());
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instance->set_scaling_factor({ 2.0, 2.0, 2.0 });
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// calculate 2D convex hull
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Polygon hull_2d = object->convex_hull_2d(instance->get_transformation().get_matrix());
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// verify result
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Points result = {
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{ -91501496, -15914144 },
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{ 91501496, -15914144 },
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{ 91501496, 4243 },
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{ 78229680, 4246883 },
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{ 56898100, 4246883 },
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{ -85501496, 4242641 },
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{ -91501496, 4243 }
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};
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// Allow 1um error due to floating point rounding.
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bool res = hull_2d.points.size() == result.size();
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if (res)
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for (size_t i = 0; i < result.size(); ++ i) {
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const Point &p1 = result[i];
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const Point &p2 = hull_2d.points[i];
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if (std::abs(p1.x() - p2.x()) > 1 || std::abs(p1.y() - p2.y()) > 1) {
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res = false;
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break;
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}
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}
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THEN("2D convex hull should match with reference") {
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REQUIRE(res);
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}
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}
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}
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}
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