[vtk-developers] vtkAngularPeriodicFilter and vtkTransformFilter

[Mathieu Westphal]

Afair, the vtkTransform usage in vtkAngularPeriodicFilter was only a
fallback solution when vtkAngularPeriodicDataArray could not be used for
some reason, it is not efficient and is (or at least should) generating a
warning when used.

No advice concerning the vtkTransform changes.

Mathieu


Mathieu Westphal

On Thu, Mar 10, 2016 at 3:27 PM, Sujin Philip <sujin.philip at kitware.com>
wrote:

> Hi Developers,
>
> I am working on some changes to vtkAngularPeriodicFilter and I have
> noticed that for some cases it uses vtkTransformFilter to generate the
> result, instead of using mapped arrays (vtkAngularPeriodicDataArray).
>
> Going through the code, it looks like vtkTransformFilter behaves
> differently than vtkAngularPeriodicFilter. Any field that has 3 or 9
> components is transformed in vtkAngularPeriodicFilter but
> vtkTransformFilter only transforms the normal
> (vtkDataSetAttributes::GetNormals()) and vector
> (vtkDataSetAttributes::GetVectors()) arrays.
>
> I am thinking of changing vtkTransformFilter to apply transformation on
> all 3 and 9 components arrays. I wanted to know if there is any reason this
> should not be done.
>
> Thanks
> Sujin
>
>
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