[vtkusers] vtkContourfilter produces uncomplete surface when cutting hex mesh

[Bill Lorensen]

A rectangle might not be planar which may give some renderers trouble.
The contour filter always produces triangles.


On Wed, Oct 14, 2009 at 3:09 PM, Hans Gruendel <hans.gruendel at web.de> 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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