[vtkusers] Problem getting correct results with vtkProjectedTerrainPath

[Elvis Dowson]

Hi Amy,
                  I was just going through the documentation, the  
output of vtkWrapScalar is vtkPointSet, not vtkImageData.

So, we've been trying to probe and store the sampled data into  
vtkImageData. Should we be trying to sample it into vtkPointSet instead?

Best regards,

Elvis Dowson