[Paraview] Image filters & extent

[Jérôme]

Hi,

I noticed such a problem for other filters. In fact, it seems that
vtkImageReslice and inherited filters are not ParaView compliant. I was
forced to write external executable to process my volumes (making isotropic
an anisotropic DICOM volume), then I open it in Paraview.

Best regards,

Jerome

2009/3/10 Bryn Lloyd <blloyd at vision.ee.ethz.ch>

> Still no progress on this.
>
>
> I have tried to integrate vtkImageConstantPad as a plugin. The displayed
> outline of the image (in paraview) suggests that the extent of the enlarged
> image is correct, but the information printed in the information tab shows
> the same extent as the input, rather than the one I expect at the output of
> vtkImageConstantPad.
>
> say the input is an 10x10x10 image. I set the output extent to be 12x12x12
> in the vtkImageConstantPad. However, Paraview tells me the output still has
> dimensions 10x10x10.
>
>
> I have modified vtkImageConstantPad and tried different parent classes
>  - vtkImageToImageFilter
>  - vtkImageAlgorithm
>  - vtkDataSetAlgorithm
>  - vtkTrivialProducer
>
> ... hoping to break up the pipeline somehow, i.e. simply producing a new
> image, which is displayed and can be used subsequently for other operations.
>
> Sofar with no success. I have written a test, which runs as a separate
> program. The test proves to me that the filter DOES work as expected. But in
> Paraview the extent is screwed-up for some reason.
>
>
> I have seen similar reports by John Biddiscombe, from around 2005 and more
> recent. Was there any solution to this?
>
>
>
> Thanks
>
>
> Bryn
>
>
>
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