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[tfern90 <>]

I originally built the polyhedron with a off  file and an ifstream object.

After I converted to Nef.

 I did not have good results

I'll try again.

I work at Orange labs and we calculate the intersections between buildings and optical beams.

2011/6/30 Sebastien Loriot (GeometryFactory) [via cgal-discuss] <[hidden email]>

thierry Fernandez wrote:
> I compile in release mode.
>
> Yes I use OFF_to_nef_3.
>
As I said OFF_to_nef_3 is slower.
First construct a polyhedron (if your input is a 2-manifold) and then
build nef from the polyhedron.

For which application are you using nef?

Sebastien.

> 2011/6/30 Sebastien Loriot (GeometryFactory) <sloriot.ml
> <http://sloriot.ml>@gmail.com <http://gmail.com>>
>
>     tfern90 wrote:
>
>         it's a bit faster, but still too: 1 second
>
>         --
>
>         View this message in context:
>         http://cgal-discuss.949826.n4.__nabble.com/intersection-of-2-__Nef-Polyhedron-__tp3635879p3636030.html

>         <http://cgal-discuss.949826.n4.nabble.com/intersection-of-2-Nef-Polyhedron-tp3635879p3636030.html>

>         Sent from the cgal-discuss mailing list archive at Nabble.com.
>
>
>     Try upgrading your computer.
>
>     Did you compile with optimizations and release mode?
>     how do you import your model as a nef polyhedron? using the
>     constructor from polyhedron or OFF_to_nef_3 (the former being faster)?
>
>
>     Sebastien.
>
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