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Do some hollowing finally.

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This commit is contained in:
tamasmeszaros
2019-10-31 14:36:33 +01:00
parent ce9c2c5dd4
commit 2165537fa5
8 changed files with 202 additions and 62 deletions
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51
tests/hollowing/hollowing_tests.cpp
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@@ -1,10 +1,8 @@
#include <iostream>
#include <catch_main.hpp>
#include <fstream>
#include <catch2/catch.hpp>
#include <openvdb/openvdb.h>
#include <openvdb/tools/MeshToVolume.h>
#include <openvdb/tools/VolumeToMesh.h>
#include <libslic3r/TriangleMesh.hpp>
#include "openvdb_utils.hpp"
#include "libslic3r/Format/OBJ.hpp"
#if defined(WIN32) || defined(_WIN32)
@@ -13,22 +11,6 @@
#define PATH_SEPARATOR R"(/)"
#endif
class TriangleMeshDataAdapter {
public:
Slic3r::TriangleMesh mesh;
size_t polygonCount() const { return mesh.its.indices.size(); }
size_t pointCount() const { return mesh.its.vertices.size(); }
size_t vertexCount(size_t) const { return 3; }
// Return position pos in local grid index space for polygon n and vertex v
void getIndexSpacePoint(size_t n, size_t v, openvdb::Vec3d& pos) const {
auto vidx = size_t(mesh.its.indices[n](Eigen::Index(v)));
Slic3r::Vec3d p = mesh.its.vertices[vidx].cast<double>();
pos = {double(p.x()), double(p.y()), p.z()};
}
};
static Slic3r::TriangleMesh load_model(const std::string &obj_filename)
{
Slic3r::TriangleMesh mesh;
@@ -38,24 +20,21 @@ static Slic3r::TriangleMesh load_model(const std::string &obj_filename)
}
TEST_CASE("Load object", "[Hollowing]") {
TriangleMeshDataAdapter mesh{load_model("20mm_cube.obj")};
auto ptr = openvdb::tools::meshToVolume<openvdb::FloatGrid>(mesh, {});
Slic3r::TriangleMesh mesh = load_model("20mm_cube.obj");
Slic3r::sla::Contour3D imesh = Slic3r::sla::convert_mesh(mesh);
auto ptr = Slic3r::meshToVolume(imesh, {});
REQUIRE(ptr);
std::vector<openvdb::Vec3s> points;
std::vector<openvdb::Vec4I> quad_indices;
std::vector<openvdb::Vec3I> triangle_indices;
Slic3r::sla::Contour3D omesh = Slic3r::volumeToMesh(*ptr, -1., 0.0, true);
openvdb::tools::volumeToMesh(*ptr, points, triangle_indices, quad_indices, 0.0, 1.0, true);
REQUIRE(!omesh.empty());
std::cout << "Triangle count: " << triangle_indices.size() << std::endl;
std::cout << "Quad count: " << quad_indices.size() << std::endl;
std::cout << "Point count: " << points.size() << " vs " << mesh.mesh.its.vertices.size() << std::endl;
std::fstream outfile{"out.obj", std::ios::out};
omesh.to_obj(outfile);
imesh.merge(omesh);
std::fstream merged_outfile("merged_out.obj", std::ios::out);
imesh.to_obj(merged_outfile);
}
//int main(int argc, char **argv)
//{
// ::testing::InitGoogleTest(&argc, argv);
// return RUN_ALL_TESTS();
//}