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Re: [cgal-discuss] OFF file reading problem


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  • From: Helmi Ben Hmida <>
  • To:
  • Cc: Nicholas Mario Wardhana <>
  • Subject: Re: [cgal-discuss] OFF file reading problem
  • Date: Fri, 09 Mar 2012 12:24:32 +0100

Hello again,
In cases, we have the differents 3D points composing the elements, if there is any way to create Nef_Polydehron with out going through the off file, it will be a solution also.

If any one has an idea how to do it, may be the problem will be resolved

Am 09.03.2012 12:05, schrieb Helmi Ben Hmida:
In fact, we have created a Semantic 3D Spatial relation qualification engine based on CGAL, it presents almost the research progress for the last 3-4 mounth.
Actually the purpose is to test our semantic engine with Building elements to qualify semantic 3D Spatial relations between them.

For this reason, we re trying to convert an IFC file to off files, just for test.
So, if any one has an ideas if there are existing off files for Building elements, it will resolve the problem I guess !
H.

Am 09.03.2012 11:53, schrieb Nicholas Mario Wardhana:
On 9 March 2012 18:10, Helmi Ben Hmida
<>
wrote:
Hi,
Yes, yes, it will be a closed polyhedron for sure since also vrml does not
suport open geometries.
I have tried Bertrand OFF file even u re update, always an empty polyhedron
!!!

Hmm, you are correct. I tested with my own code and it strangely
didn't load, for both "8 6 0" and "8 6 12"...
On the other hand, my own cube model (please see attachment; it has
triangular facets instead of rectangular) was loaded properly.
I'll get back to you when I find something.

Best regards,
Nicholas







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