wip adding a test

Mesh_3/test/Mesh_3/CMakeLists.txt

@@ -39,6 +39,7 @@ endif()
 
 create_single_source_cgal_program( "test_meshing_implicit_function.cpp" )
 create_single_source_cgal_program( "test_meshing_polyhedral_complex.cpp" )
+create_single_source_cgal_program( "test_meshing_polyhedral_complex_with_manifold_and_min_size.cpp")
 create_single_source_cgal_program( "test_meshing_polyhedron.cpp" )
 create_single_source_cgal_program( "test_meshing_polylines_only.cpp" )
 create_single_source_cgal_program( "test_meshing_polyhedron_with_features.cpp" )
@@ -81,6 +82,7 @@ foreach(target
     test_meshing_with_one_step
     test_min_edge_length
     test_min_size_criteria
+    test_meshing_polyhedral_complex_with_manifold_and_min_size
     )
   if(TARGET ${target})
     target_link_libraries(${target} PUBLIC CGAL::Eigen3_support)

Mesh_3/test/Mesh_3/test_meshing_polyhedral_complex_with_manifold_and_min_size.cpp

@@ -0,0 +1,90 @@
+#define CGAL_MESH_3_VERBOSE 1
+
+#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
+
+#include <CGAL/Mesh_triangulation_3.h>
+#include <CGAL/Mesh_complex_3_in_triangulation_3.h>
+#include <CGAL/Mesh_criteria_3.h>
+
+#include <CGAL/Polyhedral_complex_mesh_domain_3.h>
+#include <CGAL/make_mesh_3.h>
+
+#include <cstdlib>
+#include <cassert>
+
+// Domain
+typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
+typedef CGAL::Mesh_polyhedron_3<K>::type Polyhedron;
+typedef CGAL::Polyhedral_complex_mesh_domain_3<K> Mesh_domain;
+
+
+typedef CGAL::Sequential_tag Concurrency_tag;
+
+// Triangulation
+typedef CGAL::Mesh_triangulation_3<Mesh_domain,CGAL::Default,Concurrency_tag>::type Tr;
+
+typedef CGAL::Mesh_complex_3_in_triangulation_3<
+  Tr,Mesh_domain::Corner_index,Mesh_domain::Curve_index> C3t3;
+
+// Criteria
+typedef CGAL::Mesh_criteria_3<Tr> Mesh_criteria;
+
+namespace params = CGAL::parameters;
+
+const char* const filenames[] = {
+  "meshes/polyhedral_complex_of_spheres/Sphere1.off",
+  "meshes/polyhedral_complex_of_spheres/Sphere2.off",
+  "meshes/polyhedral_complex_of_spheres/Sphere3.off",
+  "meshes/polyhedral_complex_of_spheres/Intersection12.off",
+  "meshes/polyhedral_complex_of_spheres/Intersection23.off"
+};
+
+const std::pair<int, int> incident_subdomains[] = {
+  std::make_pair(1, 0),
+  std::make_pair(2, 0),
+  std::make_pair(3, 0),
+  std::make_pair(1, 2),
+  std::make_pair(3, 2)
+};
+
+int main()
+{
+  const std::size_t nb_patches = sizeof(filenames) / sizeof(const char*);
+  assert(sizeof(incident_subdomains) == nb_patches * sizeof(std::pair<int, int>));
+  std::vector<Polyhedron> patches(nb_patches);
+  for(std::size_t i = 0; i < nb_patches; ++i) {
+    std::ifstream input(CGAL::data_file_path(filenames[i]));
+    if(!(input >> patches[i])) {
+      std::cerr << "Error reading " << filenames[i] << " as a polyhedron!/n";
+      return EXIT_FAILURE;
+    }
+  }
+  // Create domain
+  Mesh_domain domain(patches.begin(), patches.end(),
+                     incident_subdomains, incident_subdomains+nb_patches);
+
+  // do not detect borders/features, otherwise the manifold criterion
+  // will have no effect, and the test will be useless
+  //domain.detect_borders();
+
+  // Mesh criteria
+  Mesh_criteria criteria(params::edge_size(1.0).edge_min_size(0.1)
+    .facet_distance(0.1)
+    .facet_min_size(0.01)
+    //.facet_topology(CGAL::FACET_VERTICES_ON_SAME_SURFACE_PATCH)
+    //.cell_radius_edge_ratio(3.)
+    );
+
+  // Mesh generation
+  C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria,
+    params::no_perturb(), params::no_exude(),
+    params::manifold(),
+    params::mesh_3_dump());
+
+  // Output
+  std::ofstream medit_file("out.mesh");
+  CGAL::IO::write_MEDIT(medit_file, c3t3);
+  medit_file.close();
+
+  return EXIT_SUCCESS;
+}