[vtkusers] camera perspective transform

[francesco caruso]

Hello to all

I'd like to set the camera perspective transform of my VTK application
in the same way that another OpenGL application do.

So I retrieved a vector of 16 doubles that represent the projection 
transform.

But I don't know how to set the perspective transform in VTK!!!
There are only methods  that allow to set View Transform :(

How can I do?

Thanks in advance

Francesco