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add warning message for the case when initialization has failed

This commit is contained in:
Jane Tournois 2021-09-24 11:14:29 +02:00
parent bca05c8d67
commit 6d42c1ddf2
1 changed files with 15 additions and 0 deletions
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15
Mesh_3/include/CGAL/Mesh_3/Mesher_3.h
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@ -45,6 +45,7 @@
#include <CGAL/Mesher_level_visitors.h>
#include <CGAL/Kernel_traits.h>
#include <CGAL/point_generators_3.h>
#include <CGAL/assertions_impl.h>
#ifdef CGAL_MESH_3_USE_OLD_SURFACE_RESTRICTED_DELAUNAY_UPDATE
#include <CGAL/Surface_mesher/Surface_mesher_visitor.h>
@ -719,6 +720,20 @@ initialize()
else
#endif // CGAL_LINKED_WITH_TBB
{
if (r_c3t3_.number_of_facets() == 0)
{
CGAL::warning_fail("c3t3.number_of_facets() == 0",
"CGAL/Mesh_3/Mesher_3.h",
725,
"Warning : The mesh refinement process can't start.\n"
"When calling refine_mesh_3(), the input `c3t3` should have been initialized and have "
"at least one facet in the complex. Try to solve this issue using :\n"
"\t- The automatic initialization provided by make_mesh_3()\n"
"\t- Adding more and better chosen points on the input surface\n"
"\t- defining the compilation macro CGAL_SEQUENTIAL_MESH_3_ADD_OUTSIDE_POINTS_ON_A_FAR_SPHERE\n");
}
if (r_c3t3_.number_of_far_points() == 0 &&
r_c3t3_.number_of_facets() == 0 &&
(r_c3t3_.triangulation().dimension() < 3