[vtkusers] can't update contourFilter unless i do contourFilter->SetValue(, )

[Bill Lorensen]

Try vFrame->contourFilter->Modified() rather that reseting the value.

On Mon, Jun 14, 2010 at 4:50 AM, Liam Kurmos
<quantum.leaf at googlemail.com> wrote:
> Thank Seb,
>
> I am not observing this.
> The contourActor below is unmodified without the contourFilter->SetValue() call.
>
> my method is:
>
>               vFrame->reinitField();//after this the vtkImageData is modified
>
>              //try updating things
>               vFrame->vol->Update();
>               vFrame->contourFilter->Update();
>               vFrame->contourFilter->GetOutput()->Update();
>               vFrame->contourActor->GetMapper()->GetInput()->Update();
>
>               //remove works but add it back and it is not updated
>               vFrame->ren1->RemoveActor(vFrame->contourActor);
>               vFrame->ren1->AddActor(vFrame->contourActor);
>
>               //as a work around i can set the iso value to
> something else and then set it back.
>               vFrame->contourFilter->SetValue(0,newVal);
>               vFrame->contourFilter->SetValue(0,origVal)
>
>              renWin->Render();
>
> without the SetValue() call the vtkActor is not being updated. I have
> a work around for now, later today i will try to make a simple example
> of this and if it persits file a bug report.
>
> Liam
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