[Paraview] To Id Or Not to Id?

[Kent Eschenberg]

Is it true that the index of a point, in an array of points, is not always its 
"point id". For example, points at index 0,1,2 may have point ids of 27,19,42.

I'm working on a filter with vtkStructuredGrid coming in and vtkPolyData going 
out. The output's points share the input's points and so their indexes are the 
same. The output's only geometry will be a vtkCellArray.

The filter will generate a bunch of quads using point indexes. The problem is 
that I must add these quads to vtkCellArray using point ids.

TIA!
Kent
Pittsburgh Supercomputing Center