[Paraview] Trouble with Pipeline and image filters in ParaView

[John Biddiscombe]

I've been trying to get the LEA code working correctly with the new 
pipeline, but I seem to be having difficulty displaying correct output 
in Paraview. No matter what I set the output extent of the image to 
after processing an input, Paraview seems to somehow override my Extents 
and put the extent of the input image in the "information" tab of the 
display.

For example, input is 0-39 x 0-39, output should be 0-127 x 0-127, but 
paraview at first displays only a 0-39 square piece of the image. 
Interestingly, if I change display from Surface to outline, the outline 
jumps back to the correct size, then for a while, the information 
displayed changes (saying 0-127 correctly). Changing back to 
surface/outline/surface/outline causes the displayed image to change 
size each time back and forth between 39 and 128.

I've had a great deal of trouble getting anything sensible using imaging 
filters inside paraview and I wonder if there's something desperately 
broken deep inside it. (at least image filters that change the 
information = spacing/bounds/extents)

Has anyone got any advice? (next I'm going to wrap vtkImageShrink3D in 
xml and see if it also breaks Paraview).

thanks

JB

-- 
John Biddiscombe,                            email:biddisco @ cscs.ch
http://www.cscs.ch/about/BJohn.php
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82