[vtkusers] ImageData WholeExtent/Dimensions problem

Charles Law charles.law at kitware.com
Fri Oct 6 11:48:14 EDT 2000


I have been working on the UpdateExtent (a couple months ago).  It should 
handle a single point just fine.  I will take a look at the problem.


At 12:54 AM 10/6/00 +0100, John Biddiscombe wrote:
>I'm averaging some 2D data and producing a final value which in
>some cases consists of a single pixel.
>used to set the dimensions of the image to
>1,1,1 as expected
>but now the Extent is being set to
>and dimensions are returned as 0,0,0
>causing most grievious access violations when allocating scalars
>and writing to memory.
>Has someone changed the functionality to handle UpdateExtents and
>streaming issues differently (invalid update extents)?
>John B
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