[vtkusers] vtkCamera::SetParallelScale

[Adam D. Burry]

Hi:

This note: 
	http://public.kitware.com/pipermail/vtkusers/1999-July/001395.html

recommends setting the parallel scale to 0.5 - 1.0 times the length
diagonal of the data in world coordinates. (At least that is how I read
it.)

The documentation for vtkCamera::SetParallelScale():

http://public.kitware.com/VTK/doc/release/3/html/classvtkCamera.html#a45
	http://public.kitware.com/VTK/doc/nightly/html/classvtkCamera.html#a44

says that it is the height of the viewport in world coordinates.

What I want to do is set the parallel scale so that my data fills the
viewport in at least one dimension without being clipped, calling
vtkREnderer::ResetCamera( float bounds[6] ) does not make the data big
enough. I want:

+-------------------+
|      +-----+      |
|      |     |      |
|      +-----+      |
+-------------------+

or

+---------+
|         |
|         |
|+-------+|
||       ||
|+-------+|
|         |
|         |
+---------+

Does anyone have experience with this?

Adam

--
Mr. Adam D. Burry, P.Eng.
Software Developer
aburry at igotechnologies.com