CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Did you have a look at the section "31.5   Glide"
on this page:
http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Minkowski_sum_3/Chapter_main.html

It looks like this is what you want to do.

Sebastien.

On 01/22/2013 04:33 PM, Roeland Boeters wrote:
> 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) 
> <
> <mailto:>>
>
>     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
>     
> <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
>     
> <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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> http://cgal-discuss.949826.n4.__nabble.com/Buffer-with-3d-__polygon-tp4656520.html
>         
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