CGAL users discussion list

[Shrabani Ghosh <>]

Yes,

I am getting segmentation fault for this line. 

CGAL::Polygon_mesh_processing::orient_to_bound_a_volume(mesh); 

On Thu, Sep 12, 2019 at 4:27 PM Sebastien Loriot (GeometryFactory) <> wrote:

I can't reproduce the issue with master and CGAL-4.13.

What version are you using?

Could you run the debugger and point to the line where the segfault occur?

Thanks,

Sebastien.

On 9/12/19 9:49 PM, Shrabani Ghosh wrote:
> Thank You. Here it is.
> output_newvolume_bones.off
> <https://drive.google.com/file/d/1UqJWdpvHaHYP7no2T3DW7vYUya3AtTs1/view?usp=drive_web>
>
>
> On Thu, Sep 12, 2019 at 3:39 PM Sebastien Loriot (GeometryFactory)
> < <mailto:>> wrote:
>
>     The code looks correct. Can you share the input file?
>     (please upload it somewhere to avoid sending a large file
>     to all subscribers).
>
>     Sebastien.
>
>     On 9/12/19 9:13 PM, Shrabani Ghosh wrote:
>      > CGAL::Polygon_mesh_processing::orient_to_bound_a_volume(mesh);
>     //// this
>      > function is not working.
>      > {
>      >    const char* filename = (argc > 1) ? argv[1] :
>      > "../data/output_newvolume_bones.off";
>      >    std::ifstream input(filename);
>      >    std::vector<K::Point_3> points;
>      >    std::vector<std::vector<std::size_t> > polygons;
>      >    if(!input || !CGAL::read_OFF(input, points, polygons) ||
>     points.empty())
>      >    {
>      >      std::cerr << "Cannot open file " << std::endl;
>      >      return EXIT_FAILURE;
>      >    }
>      >    CGAL::Polygon_mesh_processing::orient_polygon_soup(points,
>     polygons);
>      >    Polyhedron mesh;
>      >   
>     CGAL::Polygon_mesh_processing::polygon_soup_to_polygon_mesh(points,
>      > polygons, mesh);
>      >    // Number the faces because 'orient_to_bound_a_volume' needs a
>     face
>      > <--> index map
>      >    int index = 0;
>      >    for(Polyhedron::Face_iterator fb=mesh.facets_begin(),
>      > fe=mesh.facets_end(); fb!=fe; ++fb)
>      >      fb->id() = index++;
>      >    if(CGAL::is_closed(mesh))
>      >      CGAL::Polygon_mesh_processing::orient_to_bound_a_volume(mesh);
>      >    std::ofstream out("../data/output_newvolume_bones_orient.off");
>      >    out << mesh;
>      >    out.close();
>      >    return EXIT_SUCCESS;
>      > }
>      >
>      > On Thu, Sep 12, 2019 at 3:03 PM Sebastien Loriot (GeometryFactory)
>      > < <mailto:>
>     <mailto: <mailto:>>> wrote:
>      >
>      >     What are you using precisely?
>      >
>      >     CGAL::Polygon_mesh_processing::reverse_face_orientations()?
>      >
>      >     How is the mesh read? You should post your code on
>     gist.github.com <http://gist.github.com>
>      >     <http://gist.github.com>
>      >     and the data set there, it would be easier to help you.
>      >
>      >     Sebastien.
>      >
>      >     On 9/12/19 5:48 PM, Shrabani Ghosh wrote:
>      >      > HI,
>      >      >
>      >      > I was able to use my surface mesh by changing the orientation.
>      >     But now I
>      >      > have a surface mesh which is a bigger one, and when I am
>     trying
>      >     to change
>      >      > the orientation, I am not able to do that. After some time, it
>      >     showing
>      >      > segmentation fault. How to solve this problem?
>      >      >
>      >      >
>      >      >
>      >      >
>      >      >
>      >      >
>      >      > --
>      >      > Sent from: http://cgal-discuss.949826.n4.nabble.com/
>      >      >
>      >
>      >     --
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>      >
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