[vtkusers] Projection Matrix

[hirount]

Hello

I've searched the vtkusers archives and found no answers
though I found the same questions.

Is there any method to set the projection matrix
to vtkCamera, namely, a way to set "protected
vtkPerspectiveTransform * 
vtkCamera::PerspectiveTransform" by utilizing my
predefined 4x4 matrix.

Thanks in advance,

hirount