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add test

This commit is contained in:
Sébastien Loriot 2025-03-19 16:45:41 +01:00
parent d56fe72d33
commit 113079a8f8
3 changed files with 66 additions and 4 deletions
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4
Polygon_mesh_processing/examples/Polygon_mesh_processing/acvd_remeshing_example.cpp
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@ -2,9 +2,6 @@
#include <CGAL/Polygon_mesh_processing/approximated_centroidal_Voronoi_diagram_remeshing.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/property_map.h>
#include <boost/graph/graph_traits.hpp>
#include <iostream>
#include <filesystem>
@ -13,7 +10,6 @@ namespace PMP = CGAL::Polygon_mesh_processing;
typedef CGAL::Exact_predicates_inexact_constructions_kernel Epic_kernel;
typedef CGAL::Surface_mesh<Epic_kernel::Point_3> Mesh;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
namespace params = CGAL::parameters;

3
Polygon_mesh_processing/test/Polygon_mesh_processing/CMakeLists.txt
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@ -90,6 +90,9 @@ if(TARGET CGAL::Eigen3_support)
target_link_libraries(test_decimation_of_planar_patches PRIVATE CGAL::Eigen3_support)
create_single_source_cgal_program("remeshing_quality_test.cpp" )
target_link_libraries(remeshing_quality_test PRIVATE CGAL::Eigen3_support)
create_single_source_cgal_program("test_acvd.cpp" )
target_link_libraries(test_acvd PRIVATE CGAL::Eigen3_support)
else()
message(STATUS "NOTICE: Tests that use the Eigen library will not be compiled.")
endif()

63
Polygon_mesh_processing/test/Polygon_mesh_processing/test_acvd.cpp Normal file
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@ -0,0 +1,63 @@
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Polygon_mesh_processing/approximated_centroidal_Voronoi_diagram_remeshing.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <CGAL/Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/triangulate_faces.h>
#include <CGAL/Polygon_mesh_processing/bbox.h>
#include <CGAL/subdivision_method_3.h>
#include <iostream>
#include <filesystem>
namespace PMP = CGAL::Polygon_mesh_processing;
using K = CGAL::Exact_predicates_inexact_constructions_kernel;
using Mesh = CGAL::Surface_mesh<K::Point_3>;
typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
namespace params = CGAL::parameters;
void run_test(std::string fname, std::size_t genus)
{
Mesh mesh;
CGAL::IO::read_polygon_mesh(fname, mesh);
PMP::triangulate_faces(mesh);
CGAL::Subdivision_method_3::Loop_subdivision(mesh, params::number_of_iterations(5));
Mesh ref=mesh;
CGAL::Bbox_3 bb_ref = PMP::bbox(ref);
PMP::approximated_centroidal_Voronoi_diagram_remeshing(mesh, 1000);
CGAL::Bbox_3 bb = PMP::bbox(ref);
assert(-(vertices(mesh).size()-edges(mesh).size()+faces(mesh).size()-2)/2==genus);
assert(vertices(mesh).size()==1000);
double dx = bb.xmax()-bb.xmin(),
dy = bb.ymax()-bb.ymin(),
dz = bb.zmax()-bb.zmin();
assert(std::abs(bb.xmax()-bb_ref.xmax()) < 0.01 * dx);
assert(std::abs(bb.ymax()-bb_ref.ymax()) < 0.01 * dy);
assert(std::abs(bb.zmax()-bb_ref.zmax()) < 0.01 * dz);
std::ofstream("/tmp/out_"+std::to_string(genus)+".off") << mesh;
PMP::approximated_centroidal_Voronoi_diagram_remeshing(mesh, 4);
assert(-(vertices(mesh).size()-edges(mesh).size()+faces(mesh).size()-2)/2==genus);
std::ofstream("/tmp/min_out_"+std::to_string(genus)+".off") << mesh;
}
int main()
{
run_test(CGAL::data_file_path("meshes/tetrahedron.off"), 0);
run_test(CGAL::data_file_path("meshes/torus_quad.off"), 1);
run_test(CGAL::data_file_path("meshes/double-torus-example.off"), 2);
return 0;
}