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Add a test

This commit is contained in:
Mael Rouxel-Labbé 2023-09-20 16:58:59 +02:00
parent d092d4b0e3
commit 985c8a7825
3 changed files with 162 additions and 0 deletions
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1
Surface_mesh_simplification/test/Surface_mesh_simplification/CMakeLists.txt
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@ -12,6 +12,7 @@ create_single_source_cgal_program("test_edge_collapse_Envelope.cpp")
create_single_source_cgal_program("test_edge_collapse_Polyhedron_3.cpp")
create_single_source_cgal_program("test_edge_profile_link.cpp")
create_single_source_cgal_program("test_edge_deprecated_stop_predicates.cpp")
create_single_source_cgal_program("test_edge_collapse_stability.cpp")
find_package(Eigen3 3.1.0 QUIET) #(3.1.0 or greater)
include(CGAL_Eigen3_support)

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Surface_mesh_simplification/test/Surface_mesh_simplification/data/far_xy.off Normal file
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Surface_mesh_simplification/test/Surface_mesh_simplification/test_edge_collapse_stability.cpp Normal file
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#include <CGAL/Simple_cartesian.h>
#include <CGAL/Surface_mesh.h>
// Simplification function
#include <CGAL/Surface_mesh_simplification/edge_collapse.h>
#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Edge_count_stop_predicate.h>
#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/LindstromTurk_cost.h>
#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/LindstromTurk_placement.h>
#include <CGAL/boost/graph/IO/polygon_mesh_io.h>
//bbox
#include <CGAL/Polygon_mesh_processing/bbox.h>
#include <iostream>
#include <fstream>
namespace SMS = CGAL::Surface_mesh_simplification;
typedef CGAL::Simple_cartesian<double> Kernel;
typedef Kernel::Point_3 Point_3;
typedef CGAL::Surface_mesh<Point_3> Surface;
typedef SMS::LindstromTurk_cost<Surface> Cost;
typedef SMS::LindstromTurk_placement<Surface> Placement;
int main(int argc, char** argv)
{
std::cout.precision(17);
std::cerr.precision(17);
std::string filename = (argc > 1) ? argv[1] : "data/far_xy.off";
Surface mesh;
if(!CGAL::IO::read_polygon_mesh(filename, mesh))
{
std::cerr << "Failed to read input mesh: " << filename << std::endl;
return EXIT_FAILURE;
}
std::cout << "input has " << num_vertices(mesh) << " vertices." << std::endl;
CGAL::Iso_cuboid_3<Kernel> bbox(CGAL::Polygon_mesh_processing::bbox(mesh));
// scale a bit the bounding box bbox, because the kernel is SC
bbox = { bbox.min() - 0.01 * (bbox.max() - bbox.min()),
bbox.max() + 0.01 * (bbox.max() - bbox.min()) };
std::cout << "Bbox: " << bbox << std::endl;
SMS::Edge_count_stop_predicate<Surface> stop(num_halfedges(mesh)/10);
Placement placement_ref;
SMS::edge_collapse(mesh, stop,
CGAL::parameters::get_cost(Cost())
.get_placement(placement_ref));
CGAL::IO::write_polygon_mesh("out.off", mesh, CGAL::parameters::stream_precision(17));
for(auto v : vertices(mesh))
{
if(bbox.has_on_unbounded_side(mesh.point(v)))
{
std::cerr << "Error: " << mesh.point(v) << " is outside" << std::endl;
}
}
std::cout << "output has " << vertices(mesh).size() << " vertices." << std::endl;
return EXIT_SUCCESS;
}