CGAL users discussion list

[Efi Fogel <>]

You can think of three layers:

1. The original curves---a set A of arbitrary planar curves.
2. The set B of maximal x-monotone subcurves of the curves in A.
3. A collection C of x-monotone subcurves of A that are pairwise disjoint in their interior.

The Arrangement_with_history_2 currently only maintains a cross reference between the curves of A and the curves of C. You can still use the Arrangement_with_history_2 data structure in conjunction with examining the degree of the vertices (as I think you suggested in an earlier message).

On Sat, Mar 9, 2013 at 6:19 PM, Tapadi <> wrote:

I was fortunately reading the CGAL arrangements' book part about arrangements
with history :o)

I think that will do a great part of how I want to manipulate arrangements.
However, is there a way to traverse a basic arrangement and just ignoring
the vertices due to x-monotonization cuts? I'm switching anyway to
arrangements with history, but - if it exists - such a feature would help a
lot.

Thanks again,
Best regards

Hugo Loi
PhD student at Inria - Maverick Team
http://maverick.inria.fr/

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