[vtkusers] upgraded to version 4.4

[Louis Desjardins]

Hi VTK experts,

I just upgraded to v.4.4 from v.4.2, and part of my display involves the 
pipeline:

PlaneSource->PolyData
PlaneSource->PolyDataMapper->LODActor

i.e. I do:

PolyDataObject = PlaneSourseObject->GetOutput();
PolyDataMapperObject->SetInput(PlaneSourceObject->GetOutput());
LODActorObject->SetMaper(PolyDataMapperObject)

and to assign data to my PolyDataObject I do:

PolyDataObject->GetPointData()->SetScalars(FloatArrayObject);
PolyDataObject->Modified();

However I am changing the data several times per second and calling 
Modified() (as above) every time it changes in order to sort of animate it

This used to work for the old version but now with v.4.4. it looks like its 
not being updated..
Can anyoen tell me why this might be happening?

Thank you...

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