CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Hi Noel,

you got a self-intersection in design.off.

Using CGAL::OFF_to_nef_3 to create the nef polyhedron gave a result,
but then the difference is not simple.

Sebastien

On 02/20/2013 01:10 PM, Noel Warren wrote:
> I get the following error when subtracting two Nef polyhedra
>
> ERROR: CGAL ERROR: assertion violation!
> Expr: itl != it->second.end()
> File: /usr/local/include/CGAL/Nef_3/SNC_external_structure.h
> Line: 1102
>
> I have attatched the polyhedra in "off" format.  They convert fine to
> Nef_polyhedron_3.  I have also tried the operation with the "Operations
> on Polyhedra" demo.  Performing the difference operation (stock -
> design) also crashes it.
>
> Thanks in advance.