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