[vtkusers] clip surface, fill hole

[Bill Lorensen]

Bryn,

Look at
VTK/Graphics/Testing/Tcl/capCow.tcl

an oldie but goodie,

Bill

On Wed, Jun 4, 2008 at 12:20 PM, Bryn Lloyd <blloyd at vision.ee.ethz.ch> wrote:
> Bryn Lloyd wrote:
>>
>> Dear users,
>>
>>
>> I would like to clip a triangle surface, e.g. using a plane. Is there a
>> filter that will fill the resulting hole with triangles? I.e. the resulting
>> surface mesh should remain closed.
>>
>> I could not find one. Does anybody have any hints/suggestions?
>>
>> What about using the vtkCutter, doing Delaunay2D on the output (if there
>> is only one connected curve/line) and merging the patch with the clipped
>>  surface?
>
>
> Well, that obviously only works if the curve around the hole is convex . In
> my example it is not, so I need a better solution.
> Another assumption behind the proposed algorithm is that vtkCutter and
> vtkClipPolyData deliver the same cut interface (edges and points). Not sure
> if that is true.
>
>
>
> --Bryn
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