[Paraview-developers] Bug in my reader plugin

[Lodron, Gerald]

Ok, below there is an easy vtk file where the described behaviour appears. Simply select one of the two polygons and extract it, then select preserve topology and apply again a second time:

# vtk DataFile Version 3.0
vtk output
ASCII
DATASET POLYDATA
POINTS 4 float
0 0 0 1 0 0 1 1 0 0 1 0
POLYGONS 2 8
3 0 1 2
3 0 2 3
POINT_DATA 4
COLOR_SCALARS color 3
1 0 0 0 1 0 0 0 1 1 1 0


Von: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
Gesendet: Samstag, 07. Dezember 2013 15:57
An: Lodron, Gerald
Cc: Paraview Developer (Paraview-developers at paraview.org)
Betreff: Re: [Paraview-developers] Bug in my reader plugin

Gerald,

It's unclear what could be going wrong. Can you share the code and sample files to reproduce the problem?

Utkarsh

On Fri, Dec 6, 2013 at 3:12 AM, Lodron, Gerald <Gerald.Lodron at joanneum.at<mailto:Gerald.Lodron at joanneum.at>> wrote:
Hello

I made a reader plugin which returns a vtkPolyData object from our internal file type and have following problem:

Open our file using plugin, polydata object is successfully loaded and visualized (everything fine)
Select some region with "select points through"
Apply the ExtractSelection filter, the subset is successfully extracted (unstructured grid), everything seems fine
Select Preserve Topology check box in the ExtractSelection object panel
Apply again

Then following comes into output window:

Warning: In D:\Develop\Source\ParaView-v4.1.0-RC1-source\ParaViewCore\ServerManager\Rendering\vtkSMPVRepresentationProxy.cxx, line 279
vtkSMPVRepresentationProxy (10CE2020): Could not determine array range.

Someone knows what I am doing wrong, this does not appear when I load a normal vtkPolyData .vtk file format so it seems that I am doing something wrong with the reader plugin interface, but what.....

Thanks
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