[vtkusers] ParallelProjection Scale

[Nicola Creati]

Hello,
I need to fit my data, along the longest dimension (x or y),  to the 
render window in parallel projection mode. I have tried to read in the 
VTK source code for a solution but I was not able to find a way to 
calculate the best parallel scale that will fit data. How is calculated 
the parallel scale? How can it be calculated the right parallel scale to 
get the fit?

Thanks,

Nicola