Re: [gts-general] (no subject)

[Dominik S. <do...@vi...>]

Hi Eugene,

This assumes relatively small displacements off the plane, does it not?
A simple example of my scenario would be just points on sphere (or any
other arbitrary but closed surface).

Thanks for any hints
Dominik

Eugene K. Ressler wrote:
>> From: Dominik Szczerba <do...@vi...>
>> Hi,
>> I have points in 3-D representing a surface. I want to create a
>> tri-surface mesh out of them. I saw a commercial tool "wrapping" these
>> points up in a surface mesh. Could anyone suggest a way to achieve it in
>> GTS? 3-D Delaunay tetrahedralization leads nowhere of course and 2-D
>> triangulation is not applicable by definition.
> 
> 
> Terrain-like surfaces are in fact often triangulated with 2D Delaunay by
> ignoring the elevation to do the triangulation and then adding it back
> in afterward.
> 
> An interesting example is
> 
> Laurent Demaret, Nira Dyn, Michael S. Floater, and Amin Iske. Adaptive
> thinning for terrain modelling and image compression. In N. A. Dodgson,
> M. S. Floater, and M. A. Sabin, editors, Advances in Multiresolution for
> Geometric Modelling, pages 319?338. Springer-Verlag, Heidelberg, 2004.
> 

-- 
Dominik Szczerba, Dr.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi