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Facet can be recovered by other operation

This commit is contained in:
Laurent Rineau 2023-03-17 13:27:20 +01:00
parent aecc195697
commit 27e50d43e1
1 changed files with 24 additions and 6 deletions
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30
Triangulation_3/include/CGAL/Constrained_Delaunay_triangulation_3.h
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@ -1154,8 +1154,10 @@ private:
for(const auto [f, f2d] : new_constrained_facets) {
const auto [c, i] = f;
c->set_facet_constraint(i, face_index, f2d);
const auto [c2, i2] = this->mirror_facet(f);
c2->set_facet_constraint(i2, face_index, f2d);
if(tr.dimension() > 2) {
const auto [c2, i2] = this->mirror_facet(f);
c2->set_facet_constraint(i2, face_index, f2d);
}
f2d->info().missing_subface = false;
}
CGAL_assertion(this->T_3::Tr_Base::is_valid(true));
@ -1337,13 +1339,29 @@ private:
int region_count = 0;
for(const CDT_2_face_handle fh : cdt_2.finite_face_handles()) {
if(fh->info().is_outside_the_face) continue;
CGAL_assertion((fh->info().missing_subface == false) == tr.is_facet(fh->vertex(0)->info().vertex_handle_3d,
fh->vertex(1)->info().vertex_handle_3d,
fh->vertex(2)->info().vertex_handle_3d));
CGAL_assertion(tr.is_facet(fh->vertex(0)->info().vertex_handle_3d,
fh->vertex(1)->info().vertex_handle_3d,
fh->vertex(2)->info().vertex_handle_3d) ||
(fh->info().missing_subface == true));
if(false == fh->info().missing_subface) {
continue;
}
if(processed_faces.contains(fh)) continue;
Cell_handle c;
int i, j, k;
if(tr.is_facet(fh->vertex(0)->info().vertex_handle_3d, fh->vertex(1)->info().vertex_handle_3d,
fh->vertex(2)->info().vertex_handle_3d, c, i, j, k))
{
const int facet_index = 6 - i - j - k;
c->set_facet_constraint(facet_index, face_index, fh);
if(tr.dimension() > 2) {
const auto [c2, i2] = this->mirror_facet({c, facet_index});
c2->set_facet_constraint(i2, face_index, fh);
}
fh->info().missing_subface = false;
continue;
}
if(processed_faces.contains(fh))
continue;
const auto fh_region = region(cdt_2, fh);
processed_faces.insert(fh_region.begin(), fh_region.end());
try {