[vtkusers] How to change cursor shape in vtkImagePlaneWidget?

[bailleul jonathan]

Dear All,

I'm using vtkImagePlaneWidget very often for MRI/geometrical models 
visualisation.

For my purposes, I don't want to use any interpolated modes, I'm only 
interested in actual voxel values. My problem is that selecting a voxel 
is not visually convincing in my case:

http://www.utc.fr/~jbailleu/cursor.jpg

Most of the time, the cross doesn't accurately match the topleft corner 
of the  voxel on focus, and sometimes falls inside another voxel (this 
is slightly the case here). To solve this problem, I would ideally like 
to see the selected voxel outlined in red.

Is there an easy way to do something similar? If not, what hints could 
you give me for further investigations?


Maybe this question is trivial, but I've not found many help in ML 
archives or in the books...


In advance, thank you very much for ANY clue,

-- 
---------------------------------------
Jonathan BAILLEUL, ATER
Dept. Génie Biomédical - UTC Compiègne
Doctorant au GREYC Image - ENSICAEN
http://www.greyc.ensicaen.fr/~bailleul/