CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Have a look at this chapter:

http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Box_intersection_d/Chapter_main.html

and in particular the following example you can adapt
to polygon. Note that you can also pass a functor instead
of a function.

http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Box_intersection_d/Chapter_main.html#Section_62.5



Sebastien.

On 10/17/2011 07:45 PM, Graviton wrote:
> I have a list of polygons, and I want to check whether any of them intersect
> with others or not ( predicate is sufficient, I just want to know whether A
> polygon intersects with B, that's it).
>
> And since I have a list of polygons, I want to use do_intersect and I want
> to keep the index of the intersected polygons. It would be great if
> do_intersect also accepts a functor, that is called when an intersection
> happens, so that I can store the index of the polygon somewhere.
>
> --
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> http://cgal-discuss.949826.n4.nabble.com/do-intersect-visitor-pattern-tp3914108p3914108.html
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