Coarsening a triangulation that defines a surface in 3d
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Hi,
I have a triangulation in 3d that represents an open manifold (it actually represents part of a cell membrane, i.e a surface in 3d).
This (unstructured) triangulation is defined as a TriRep object and has a very fine mesh parameter (~ mean triangle length)... I'm trying to extract a regularly spaced distribution of points on this membrane, and my first thought was: "ok, I run a coarsening of this fine mesh, and just takes the triangles centers in the the coarsened mesh".... but I discovered that there is no obvious way to coarsen a given triangulation (or I missed it).
What could be the most straightforward way to get a coarsener version of this triangulation?
thanks, Daniel
3 Comments
Walter Roberson
on 6 Feb 2013
I seem to recall there being a routine for thinning a triangular mesh. I have never used it, and have not looked at it often enough to remember its name.
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