[vtkusers] vtkContourfilter produces uncomplete surface when cutting hex mesh

[Dominik Szczerba]

"is not complete" -> how exactly do you arrive to this conclusion?
"Missing rectangle" reminds me of a situation I had saving my extracted 
surface as an STL file. It missed rectangles, because STL stores only 
triangles. Passing the surface through triangulation filter fixed the 
problem.

	Dominik

Hans Gruendel wrote:
> Hi All,
> 
> this is my first email here.
> 
> I use the vtkContourFilter on an unstructured 3D Grid.
> Case 1: Cells are Tetraeder (Type 10) --> everything is fine.
> Case 2. Cells are Hexaeder (Type 12) --> the resulting surface is not 
> complete. Each cutted face is divided into 4 triangles. An rectangle 
> would fill the whole.
> 
> My question: Is there any method to produce a complete surface from a 
> Hexaeder mesh using the contour filter without any wholes?
> 
> Looking forward to your help
>  
> Best regards
> 
> Hans
> 
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