CGAL users discussion list

[sergio <>]

I'm implementing algorithms to detect(Only detection of error, not
correction) if mesh has errors like self-intersection, wrong oriented
normals, etc.
Using scan_OFF with a *.off file it always has result "operator(): input
error: file format is not in OFF."
Why 

// kernel
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;

// polyhedron
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;

int main(int argc, char* argv[])
{
  const char* filename = (argc > 1) ? argv[1] : "tetrahedron-piramide.off";
  std::ifstream input(filename);
  
  Mesh mesh;
  if (!input || !(input >> mesh) || !CGAL::is_triangle_mesh(mesh))
  {
    std::cerr << "Not a valid input file." << std::endl;
    return 1;
  }
  
  Polyhedron M;     // a typical definition of a Polyhedron (see other
examples)
  scan_OFF(input, M, true);                   // read OFF file in verbose
mode
  assert(input);                       // input fails iff mesh is not
manifold
  return 0;
}

This is a simple mesh and I think it does not have errors. Added file 
tetrahedron-piramide.off
<http://cgal-discuss.949826.n4.nabble.com/file/t375958/tetrahedron-piramide.off>
 
.

Thanks in advance



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