Problem with blanking points in a StructuredGrid

[Martin Weinberg]

Folks,

I have two-dimensional gridded data with some points missing and
want to render isovalues.  I created a StructuredGrid using the
example code (pg. 145) with dims[2]=1 as a model.  I used
BlankPoint to toggle those points.

The problem is that the wrong points appear to be blanked!
It seems as if the StructuredGridGeometryFilter code is
is confused about which cells have the blanked points.  If I 
don't blank any points, no problems.  I used used GetPoint
and IsPointVisible to check that the desired points are indeed
being blanked.

Any ideas/suggestions?  I can provide a (relatively) simple code 
which demonstrates the problem . . .

--Martin

===========================================================================

Martin Weinberg                      Phone: (413) 545-3821
Dept. of Physics and Astronomy       FAX:   (413) 545-2117/0648
530 Graduate Research Tower	     weinberg at astro.umass.edu
University of Massachusetts	     http://www.astro.umass.edu/~weinberg/
Amherst, MA  01003-4525






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