[Paraview] Re: [vtkusers] Re: Fill contours with Pixels

[Kent Eschenberg]

Good idea! I don't expect to have the opportunity to do that anytime 
soon; perhaps you or someone else could upgrade the mesh quality class 
and implement the Python checks in C++. One issue: large meshes make 
take a while since every vertex and triangle are compared to every other.

Kent

Goodwin Lawlor wrote:
 > Kent Eschenberg wrote:
 >>> Mike Jackson wrote:
 >>>> I tried again, but I still get these errors:
 >>>>
 >>>> Warning: In
 >>>> /Users/Shared/OpenSource/VTK-5.0.2/Filtering/vtkPolygon.cxx, line 562
 >>>> vtkPolygon (0xb300910): Degenerate polygon encountered during
 >>>> triangulation
 >>
 >> I've attached a short Python program that uses VTK to look for bad
 >> triangles and other problems. I too had a problem with bad triangles
 >> and could not find a simple tool to look for them.
 >
 > Hi Kent,
 >
 > I've had problems with degenerate triangles too - you get a segfault
 > when you pick them with vtkCellPicker...
 >
 > Maybe your code could fit into the vtkMeshQuality class. Something like
 > "SetTriangleQualityMeasureToArea()" ... you could then threshold out the
 > bad triangles if you wanted.
 >
 > Goodwin