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Merge branch 'tm_openvdb_integration' into lm_hollow_gizmo

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This commit is contained in:
Lukas Matena 2019-11-05 11:16:51 +01:00
commit 7542580ac1
22 changed files with 8075 additions and 251 deletions
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6
tests/libslic3r/CMakeLists.txt
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@ -1,4 +1,5 @@
get_filename_component(_TEST_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
add_executable(${_TEST_NAME}_tests
${_TEST_NAME}_tests.cpp
test_3mf.cpp
@ -10,6 +11,11 @@ add_executable(${_TEST_NAME}_tests
test_polygon.cpp
test_stl.cpp
)
if (TARGET OpenVDB::openvdb)
target_sources(${_TEST_NAME}_tests PRIVATE test_hollowing.cpp)
endif()
target_link_libraries(${_TEST_NAME}_tests test_common libslic3r)
set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")

78
tests/libslic3r/test_hollowing.cpp Normal file
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@ -0,0 +1,78 @@
#include <iostream>
#include <fstream>
#include <catch2/catch.hpp>
#include "libslic3r/OpenVDBUtils.hpp"
#include "libslic3r/Format/OBJ.hpp"
#if defined(WIN32) || defined(_WIN32)
#define PATH_SEPARATOR R"(\)"
#else
#define PATH_SEPARATOR R"(/)"
#endif
static Slic3r::TriangleMesh load_model(const std::string &obj_filename)
{
Slic3r::TriangleMesh mesh;
auto fpath = TEST_DATA_DIR PATH_SEPARATOR + obj_filename;
Slic3r::load_obj(fpath.c_str(), &mesh);
return mesh;
}
static bool _check_normals(const Slic3r::sla::Contour3D &mesh)
{
for (auto & face : mesh.faces3)
{
}
return false;
}
TEST_CASE("Passing OpenVDB grid conversion produce similar geometry.", "[Hollowing]")
{
Slic3r::TriangleMesh in_mesh = load_model("20mm_cube.obj");
Slic3r::sla::Contour3D imesh = Slic3r::sla::Contour3D{in_mesh};
auto ptr = Slic3r::meshToVolume(imesh, {});
REQUIRE(ptr);
std::cout << "Grid class = " << ptr->getGridClass() << std::endl;
Slic3r::sla::Contour3D omesh = Slic3r::volumeToMesh(*ptr, -2.9, 1.0, true);
std::cout << "Triangle count: " << omesh.faces3.size() << std::endl;
std::cout << "Quad count: " << omesh.faces4.size() << std::endl;
REQUIRE(!omesh.empty());
SECTION("Converting to Contour3D to TriangleMesh") {
Slic3r::TriangleMesh msh = Slic3r::sla::to_triangle_mesh(omesh);
msh.require_shared_vertices();
msh.WriteOBJFile("out_tr.obj");
REQUIRE(msh.volume() == Approx(in_mesh.volume()));
}
// omesh.faces4.clear();
std::fstream outfile{"out.obj", std::ios::out};
omesh.to_obj(outfile);
}
//TEST_CASE("Negative 3D offset should produce smaller object.", "[Hollowing]")
//{
// Slic3r::sla::Contour3D imesh = Slic3r::sla::Contour3D{load_model("20mm_cube.obj")};
// auto ptr = Slic3r::meshToVolume(imesh, {});
// REQUIRE(ptr);
// Slic3r::sla::Contour3D omesh = Slic3r::volumeToMesh(*ptr, -1., 0.0, true);
// REQUIRE(!omesh.empty());
// imesh.merge(omesh);
// std::fstream merged_outfile("merged_out.obj", std::ios::out);
// imesh.to_obj(merged_outfile);
//}