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Fix a bug in CDT_plus_2 

Fix issue #122
This commit is contained in:
Andreas Fabri 2015-06-17 18:52:30 +02:00
parent a2337c902d
commit c80a9aaa6c
1 changed files with 24 additions and 0 deletions
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24
Triangulation_2/include/CGAL/Constrained_triangulation_plus_2.h
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@ -795,6 +795,30 @@ insert_subconstraint(Vertex_handle vaa,
List_edges edges(conflict_boundary_ab); List_edges edges(conflict_boundary_ab);
std::copy(conflict_boundary_ba.begin(), conflict_boundary_ba.end(), std::back_inserter(edges)); std::copy(conflict_boundary_ba.begin(), conflict_boundary_ba.end(), std::back_inserter(edges));
// edges may contain mirror edges. They no longer exist after triangulate_hole
// so we have to remove them before calling get_bounded_faces
if(! edges.empty()){
typename List_edges::iterator it, it2;
it = edges.begin();
it2 = it;
++it2;
for(; it2 != edges.end();){
Edge e1 = *it, e2 = *it2;
if(this->mirror_edge(e1) == e2){
typename List_edges::iterator del = it;
--it;
edges.erase(del);
edges.erase(it2);
it2 = it;
++it2;
} else {
++it;
++it2;
}
}
}
this->triangulate_hole(intersected_faces, this->triangulate_hole(intersected_faces,
conflict_boundary_ab, conflict_boundary_ab,
conflict_boundary_ba); conflict_boundary_ba);