CGAL users discussion list

[Fred Dorosh <>]

> Must I do another conversor to .OFF directly from Nef_Polyhedron_3, or can I
> pass the Nef Polyedron (no simple) to a group of polyhedros (for example)? 
> In
> this case I could obtain the .OFF easily.

I'm not sure I understand what you're suggesting, but a non-simple Nef 
polyhedron won't break into simple polyhedral subsets.

You could attempt to eliminate the non-simple features via closure and 
regularization operation as Pierre recommended.

If you're actually interested in retaining the non-manifold features, then 
you need to process the Nef yourself. It provides visitor patterns that you 
can use to extract all of the faces, although you will need to triangulate 
them. I can provide some example code if you need.

Fred
--
Fred Dorosh
Software Architect | Presagis

T. +1 514 341.3874 X392  F. +1 514 341.8018

DISCLAIMER: This e-mail message is for the sole use of the intended 
recipient(s) and may contain confidential and/or proprietary information. Do 
not read, copy, or disseminate this message unless you are the addressee. Any 
unauthorized review, use, disclosure or distribution is strictly prohibited. 
If you have received this message in error, please contact the sender by 
reply e-mail and delete the original and any copies from your system.

AVERTISSEMENT : Ce courriel s’adresse exclusivement au(x) destinataire(s) 
mentionné(s) et peut contenir de l’information confidentielle et/ou de nature 
exclusive. Ne pas lire, copier ou transmettre à quiconque ce courriel sauf si 
vous en êtes le destinataire. Il est strictement interdit de réviser, 
utiliser, transmettre ou distribuer ce courriel sans autorisation préalable. 
Si vous avez reçu ce message par erreur, veuillez communiquer avec 
l’expéditeur en répondant à ce courriel et en supprimant le courriel original 
et toutes les copies enregistrées sur votre système.