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["Thomas Zangl - Home" <>]

Hi!

I have the following assertion triggerd, when I want to create a
Nef_Polyhedron_3 out of a Polyhedron_3:

CGAL error: assertion violation!
Expr: !pe->is_border()
File: /home/TZi/CGAL-3.3/include/CGAL/Nef_3/polyhedron_3_to_nef_3.h
Line: 191
Explanation:
Aborted (core dumped)

This is my code:
  cout << "Generating a polyhedron out of " << centers.size() << " centers 
and " << faces.size() << " faces " << endl;
  generatePolyhedron(centers, faces);
  cout << "Properties of the polyhedron: isValid: " << p_.is_valid(false) << 
" isClosed: " << p_.is_closed() << " is pure triangle: " << 
p_.is_pure_triangle() << endl;
  assert(p_.is_valid());
  Nef_polyhedron pTemp(p_);

Output:
Generating a polyhedron out of 95 centers and 263 faces
found incident triangles: 2
inserting: 9.724 90.1561 67.2414/36.2069 63.8027 63.7931/32.7586 91.4155 
91.3793
found incident triangles: 0
inserting: 36.2069 63.8027 63.7931/9.724 90.1561 67.2414/12.069 83.085 87.931
found bad incident triangle: 7/14/4
its incident triangles are: 4/54/7
52/4/14
4/52/7
3/4/14
54/14/7
found incident triangles: 5
inserting: 8.83884 91.3186 81.0345/36.2069 63.8027 63.7931/9.724 90.1561 
67.2414
found incident triangles: 0
inserting: 9.724 90.1561 67.2414/12.069 83.085 87.931/8.83884 91.3186 81.0345
found incident triangles: 2
inserting: 19.4454 90.1561 90.2188/9.724 90.1561 67.2414/36.2069 63.8027 
63.7931
found incident triangles: 1
inserting: 9.724 90.1561 67.2414/19.4454 90.1561 90.2188/8.83884 91.3186 
81.0345
found incident triangles: 1
inserting: 9.724 90.1561 53.4483/9.724 90.1561 67.2414/36.2069 63.8027 63.7931
found incident triangles: 1
inserting: 12.069 83.085 87.931/36.2069 63.8027 63.7931/8.83884 91.3186 
81.0345
found incident triangles: 0
inserting: 36.2069 63.8027 63.7931/8.83884 91.3186 81.0345/19.4454 90.1561 
90.2188
found incident triangles: 0
inserting: 36.2069 63.8027 63.7931/12.069 83.085 87.931/19.4454 90.1561 
90.2188
found incident triangles: 1
inserting: 8.83884 91.3186 81.0345/19.4454 90.1561 90.2188/12.069 83.085 
87.931
found incident triangles: 0
inserting: 36.2069 63.8027 63.7931/12.3744 87.7351 46.5517/9.724 90.1561 
53.4483
found incident triangles: 2
inserting: 8.62069 72.4784 91.3793/36.2069 63.8027 63.7931/12.069 83.085 
87.931
found incident triangles: 2
inserting: 5.17242 95.0787 94.8276/19.4454 90.1561 90.2188/8.83884 91.3186 
81.0345
found incident triangles: 0
inserting: 12.069 83.085 87.931/36.2069 63.8027 63.7931/32.7586 91.4155 
91.3793
found incident triangles: 1
inserting: 8.62069 58.3363 91.3793/36.2069 63.8027 63.7931/8.62069 72.4784 
91.3793
found incident triangles: 1
inserting: 8.83884 91.3186 81.0345/8.62069 72.4784 91.3793/5.17242 95.0787 
94.8276
found incident triangles: 0
inserting: 8.83884 91.3186 81.0345/12.069 83.085 87.931/5.17242 95.0787 
94.8276
found incident triangles: 1
inserting: 36.2069 63.8027 63.7931/8.62069 58.3363 91.3793/12.069 47.7297 
87.931
found incident triangles: 0
inserting: 5.17242 95.0787 94.8276/8.62069 72.4784 91.3793/19.4454 90.1561 
90.2188
found incident triangles: 0
inserting: 12.069 47.7297 87.931/33.5876 33.5876 66.4124/36.2069 63.8027 
63.7931
generatePolyhedron: Done. There are 242 faces left for another polyhedron.
Properties of the polyhedron: isValid: 1 isClosed: 0 is pure triangle: 1
 
Any ideas? I know that my polyhedron is not closed, but.. thats a
problem ..?

TIA,
-- 
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,yours Thomas Zangl, Bakk.rer.soc.oec. - 

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