[vtkusers] urgent: help in blanking points

[Nathalie Rey]

I have a problem in blanking points. In StructuredGrid, I set 
the visibility of the points in array, but when I render, the points are still visible. Does anyone Knows the problem? I tried to fix the problem for hours, but still have no sucess. I apreciated any help. Thanks!!!

The code: 
...

rgrid->SetPoints(pontos2);

rgrid->GetCellData()->SetScalars(tEscalar2);


//Blank Cells

vtkUnsignedCharArray *vetor_visivel = vtkUnsignedCharArray::New();

vetor_visivel->SetNumberOfValues(31);

for(i=0;i<31;i++)

    vetor_visivel->SetValue(i, 0);

rgrid->SetPointVisibilityArray(vetor_visivel);

rgrid->Update();
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