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Ron: Bugfix for not matched subcurve-index

This commit is contained in:
Eric Berberich 2007-10-23 10:06:12 +00:00
parent 22c50d5979
commit 6bdc4740f7
1 changed files with 10 additions and 2 deletions
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12
Arrangement_on_surface_2/include/CGAL/Sweep_line_2/Arr_construction_sl_visitor.h
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@ -837,7 +837,7 @@ void Arr_construction_sl_visitor<Hlpr>::relocate_in_new_face
curr_he = curr_he->next();
continue;
}
// Get the indices list associated with the current halfedges, representing
// the halfedges and isolated vertices that "see" it from above.
const Indices_list& indices_list = const_he_indices_table[curr_he];
@ -845,8 +845,16 @@ void Arr_construction_sl_visitor<Hlpr>::relocate_in_new_face
for (itr = indices_list.begin(); itr != indices_list.end(); ++itr)
{
CGAL_assertion(*itr != 0 && *itr < m_sc_he_table.size());
CGAL_assertion(*itr != 0);
// In case the current subcurve index does not match a valid entry in
// m_sc_he_table, we know that this subcurve matches a halfedge that is
// not yet mapped. This can happen only if this halfedge is he itself.
// As we know that he lies on the outer CCB of the new face, it is
// definately not a hole in the face, therefore we can ignore it.
if (*itr >= m_sc_he_table.size())
continue;
Halfedge_handle he_on_face = m_sc_he_table[*itr];
if(he_on_face == invalid_he)