[vtkusers] Appearing/Disappearing point id labels - vtkSelectVisiblePoints (vtk 4.2)

[John Platt]

Hi vtkusers,

 

I am displaying point id labels on a single hexahedron using the
pipeline vtkIdFilter > vtkSelectVisiblePoints > vtkLabeledDataMapper.
When I zoom in/out (mouse right-click) the point id labels on the
BOUNDARY in the view plane randomly appear & disappear.

 

Point id's that are not labelled always have a z-buffer value of 1
suggesting that this is due to rounding when the view coordinates are
cast to integers. I am not sure how
vtkSelectVisiblePoints::SetTolerance() can be used to get around the
problem.

 

Any suggestions?

 

Thanks in advance.

 

John Platt

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