CGAL users discussion list

[Lionel <>]

A remove_constraint function exists in Constrained_Delaunay_triangulation_2
(the class I use) which calls remove_constrained_edge. That is why I used one
or the other.

> At the end you still have edges that are marked as being
constraint?

Yes.
And sometimes theses edges were in my set. So I called remove_contraint on
theses edges !

I will think to your flip idea to be sure to well undertand.

> Maybe the flip makes that a fh, nVertex in your set, no longer refers
to a constraint?
If it works like this it seems a bug : when you remove a constraint c1 then 
due
to an internal flip it removes also a constraint c2 ?
In my case constraints are not removed or edges with constraint appear (they
are not in my set) .

Do you confirm that doing a for loop on stored edges and calling
remove_constrained_edge on these edges is the proper way to use these 
functions
?

Lionel