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[cgal-discuss] Surface_mesher with new image data: large number of "...anifold edges not initialized,non manifold vertices not initialized", apparently no convergence


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  • From: Michel Audette <>
  • To:
  • Subject: [cgal-discuss] Surface_mesher with new image data: large number of "...anifold edges not initialized,non manifold vertices not initialized", apparently no convergence
  • Date: Sun, 26 Sep 2010 20:26:21 -0400

Dear CGAL developers,

I'm trying to mesh a labeled volume of a brain that makes explicit a Sylvian fissure within it, giving each voxel in the latter a large negative value to ensure that the surface surrounding it is captured. The software seems to go into a long, probably infinite, loop that displays "...anifold edges not initialized,non manifold vertices not initialized" in verbose mode.
The last set of values is
(150260,150240,0,25934,non manifold vertices not initialized,) (615.2 vertices/s)

Under what circumstances will an image volume trigger such behaviour? With a simple binary volume that does not emphasize this Sylvian fissure, the meshing converges relatively quickly, but does not seem to identify the surface around the Sylvian fissure.

Best wishes,

Michel
--
Michel Audette, Ph.D.
R & D Engineer,
Kitware Inc.,
Chapel Hill, N.C.



  • [cgal-discuss] Surface_mesher with new image data: large number of "...anifold edges not initialized,non manifold vertices not initialized", apparently no convergence, Michel Audette, 09/27/2010

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