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Re: [cgal-discuss] Simple polygonal mesh (height field data)


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  • From: "Nicholas Yue" <>
  • To:
  • Subject: Re: [cgal-discuss] Simple polygonal mesh (height field data)
  • Date: Wed, 5 Sep 2007 08:20:23 +1000
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On 01/09/07, Bart Janssens <> wrote:
On Saturday 01 September 2007 09:24:32 wrote:
>   I have a set of points (from height fields) which I need to grid up as a
> 3D mesh. They are sampled at regular points so will form a regular grid.
>
>   I like the idea of being able to find neighbouring points, edges and face
> using CGAL and also the subdivision surface-mesh generation.

Note that I am not a CGAL expert, but from what I saw in the documentation
http://www.cgal.org/Manual/3.3/doc_html/cgal_manual/Surface_mesher/Chapter_main.html
is what you need.

Thanks Bart, I had a look at the documentation and it looks promising. Once I get the latest CGAL-3.3 compiling on my OSX box, I will try out the example code.

On a related note, if I have a series of points (3D) which I like to use to create a mesh ( i.e. point-by-point) what approach would you suggest? For example, I have 3 points which I want to use to construct a single triangle or I have 4 points which I want to create a single quad-polygon. Which chapter describe the above?

Regards




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