[vtkusers] discarding cells

[David Pont]

Hi Matthias,
  How about these:

  vtkEdgeFilter
vtkExtractEdges is a filter to extract edges from a dataset. Edges are 
extracted as lines or polylines.

  vtkTriangleFilter
vtkTriangleFilter generates triangles from input polygons and triangle 
strips. The filter also will pass through vertices and lines, if requested.

  regards, Dave Pont

>From: Matthias Baitsch <matthias.baitsch at ruhr-uni-bochum.de>
>To: "vtkusers at public.kitware.com" <vtkusers at public.kitware.com>
>Subject: [vtkusers] discarding cells
>Date: Thu, 14 Mar 2002 12:39:24 +0100
>
>Hi,
>
>I wonder if where is a possibility (a filter) to discard a specific
>cell type (e.g. lines) from polydata.
>
>What I want to do roughly looks like this:
>
>
>
>LineCells --|                           |-> ??? (discard polys) --
>render only lines
>             |                           |
>PolyCells --|-> PolyData -- WarpScalar -|
>             |       |                   |
>Points -----|       |                   |-> CountourFilter      --
>render countour lines
>             |       |
>Normals ----|       |
>                     |
>                     |---------------------> ??? (discard lines) --
>render only surface
>
>
>
>Can someone point me to the question marks in the diagram above? It
>would be possible to write a filter, but I think there is a simpler
>solution.
>
>Thanks, Matthias
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