[vtkusers] raycast questions

[Nico Vermaas]

hi,

I am displaying my ImageData cube with a raycast function. 
(1) Is there a way to write the result of that raycast back to a vtkImageData again? So that I get a new data cube with the max pixels projected on the outside?
(2) Is there a way to find out which x,y,z pixel was responsible for the maximum projection on the outside?
(3) Is there a way to 'shoot' a line through a cube and get back the highest value it encounters? (I thought the picking might work in that way, but it doesn't seem to work like this).

...
vtkVolumeRayCastMIPFunction *function = vtkVolumeRayCastMIPFunction::New();
vtkVolumeRayCastMapper *mapper = vtkVolumeRayCastMapper::New();
mapper->SetVolumeRayCastFunction(function);
mapper->SetInput(myImageData);
actorVolume->SetMapper(mapper);
...

Nico


====================================================
Nico Vermaas
ASTRON - Westerbork Synthesis Radio Telescope
Schattenberg 1 - 9433 TA Zwiggelte - The Netherlands

tel: +31 593 598710                 
vermaas at astron.nl 
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