[vtkusers] vtkPolyData to a vtkUnstructuredGrid

[David E DeMarle]

Hey Allen!

Probably a bug in the append filter, it must not be converting with
polylines type cells correctly for some reason.

As Burlen said it would help if you could post a small example data set.
That will make it trivial to replicate the problem and fix it.

Otherwise, try using a different filter to do the conversion (as a side
effect, like append does). Threshold is my habitual choice for * to
unstructured conversion.




David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Fri, Jul 11, 2014 at 6:08 PM, Burlen Loring <burlen.loring at gmail.com>
wrote:

>  It would help if you post an example with some data so that we can see
> exactly what you're doing.
>
>
> On 07/11/2014 01:29 PM, Allen Sanderson wrote:
>
>
>  Hello,
>
>  I have a vtkPolyData structure that contains vtkPolyLines or vertex(s).
> In the course of the coding the vtkPolyData needs to be converted to a
> vtkUnstructuredGrid. I have used the example here using the append filter:
>
>
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToUnstructuredGrid
>
>  However, no lines come across only points. I have also iterated through
> each cell and moved the point id list over with the same results, no lines
>
>  As such, I am wondering why lines might not be moved over.
>
>  Cheers,
>
>  Allen
>
>
>  Allen Sanderson
> SCI Institute
> University of Utah
> www.sci.utah.edu
>
>
>
>
>
>
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