[Paraview] Transformation extraction from Transform filter

[Juan Fernando Duque Lombana]

Thank you Utkarsh!

I used a property iterator to get the names of the properties you suggested;
Finally with this lines of code I was able to get the information I needed:

 vtkSMProxyProperty *Transform_prop =
vtkSMProxyProperty::SafeDownCast(myFilters[0]->getProxy()->GetProperty("Transform"));

 vtkSMProxy* myTransformProxy=Transform_prop->GetProxy(0);
 vtkSMDoubleVectorProperty *Position_prop =
vtkSMDoubleVectorProperty::SafeDownCast(myTransformProxy->GetProperty("Position"));

 vtkSMDoubleVectorProperty *Rotation_prop =
vtkSMDoubleVectorProperty::SafeDownCast(myTransformProxy->GetProperty("Rotation"));

Thank you!

On Tue, Feb 17, 2009 at 5:23 PM, Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:

> The "Transform" property is a vtkSMProxyProperty. Use GetProxy(0) to
> get the actual source proxy that produces the transform while is the
> ("extended_sources", "Transform3") proxy. It does not have API to
> access the transform directly, however. You can only get the
> scale/translation/rotation values.
>
> On Tue, Feb 17, 2009 at 4:27 PM, Juan Fernando Duque Lombana
> <jduquelo at eafit.edu.co> wrote:
> > Good day everyone,
> >
> > Does anyone knows how to extract the "Transform" matrix from a Transform
> > filter?
> >
> > I've been trying using the following line:
> >
> > vtkSMDoubleVectorProperty *Transform_prop =
> >
> vtkSMDoubleVectorProperty::SafeDownCast(myFilterPipeline->getProxy()->GetProperty("Transform"));
> >
> > But when I try to access any:
> >
> > Transform_prop->GetElement(i);
> >
> > I get a segmentation fault,
> >
> > Any hints or ideas?
> >
> > Thank you in advance!
> >
> >
> > ... Juan Fernando Duque Lombana.
> >
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-- 
... Juan Fernando Duque Lombana.
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