[vtkusers] 2D Filters on 3D dataset

[Kitslaar, P.H. (LKEB)]

Hello,

 

I'm using a couple of vtkImageDilateErode3D filters in a pipeline on a
3D dataset (VTK 4.2). I put all the z-components of the KernelSize
variable to 1, so it acts as a 2D filter.

When I view the result in a vtkImageViewer and step through the slices I
get very quick responses. But when I later call UpdateWholeExtent it
takes a very long time to update.

If the ImageViewer can step through all the slices (400) within 2
seconds why does it take about 20 seconds for the UpdateWholeExtent call
to finish?

 

Thanks,

 

Pieter Kitslaar

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20060714/14506bae/attachment.htm>