[vtkusers] Is VTK really no inefficient?

Najzero adrian.gabriel at 4plus.de
Fri Aug 3 03:30:26 EDT 2012

I am not taking sides here, but 500k cells is not so... few. So its clear to
me that you get a bad performance using filters.

For your setBlank problem - i believed this worked right ages ago.

Boiled down this is done by vtkBlankStructuredGrid class and works like
create vtkBlankStructuedGrid and vtkFloatArray for your Scalars
setInput of blankStructuredGrid via your pure structuredGrid
set min/max values for blanking in blankStructuredGrid.

An example in TCL (but I guess convertable) can be found here:

Its been ages since I had to do blanking (I simply dont write them into
structure) so I am not sure if this bug is new

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