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[Roeland Boeters <>]

Thank you for your answer. I forgot to mention that my polygon is in general not planar.

Also I'm not sure if it is clear that I want to get a buffer normal to the polygon's plane, and thus creating a NEF polyhedron.

2013/1/22 Sebastien Loriot (GeometryFactory) <>

If your polygon is planar but in 3D, you can compute a 2D polygon in the supporting plane and use this package [1].
If your polygon is almost planar, you can use this package [2] to compute the best plane approximation.

Sebastien.

[1] http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Minkowski_sum_2/Chapter_main.html
[2] http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Principal_component_analysis/Chapter_main.html

On 01/22/2013 03:16 PM, mastair wrote:

I want to buffer a polygon in 3d space. Apparently Minkowski sum only takes
NEF polyhedra as input?

How would I create a buffer around a polygon in 3d space, as such creating a
NEF polyhedron or general polyhedron?

Thank you for your help.



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