[Paraview] When is vtkPolyDataAlgorithm::RequestData called in ParaView?

[Utkarsh Ayachit]

RequestData is called only when the algorithm itself is modified (by
the properties panel) or its input is modified, or the request such as
time changes. In ParaView, fiters won't be re-executed on every
render. However, if that's what you want to do, you can write a python
script or a plugin to mark the filter modified on before every render
by changing some property on the fiter.

On Mon, Apr 4, 2011 at 11:44 AM, Alexis Chan <alexisc at cs.unc.edu> wrote:
> Hi
> I am trying to use Goodwin Lawlor's vtkCollisionDetectionFilter
> from http://sourceforge.net/projects/vtkbioeng/ . It inherits
> vtkPolyDataAlgorithm.
> I noticed that the RequestData is only called when I add inputs to the
> filter. As I would like to check for collisions periodically, I was
> wondering if ParaView do call the  vtkPolyDataAlgorithm::RequestData during
> rendering callbacks?
>
>
>
> --
> Regards,
> Alexis
>
>
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