Getting the right view

[Lisa S. Avila]

Hello Brian,

By "touching one actor" do you mean touching the actual actor, or some part 
of the bounding box of the actor?

I don't believe there is a simple was to do it.

One way to do it, if you are writing C++ code for it, is to get each point 
of the bounding box of each actor (or every point in every actor) and 
transform it according to the camera matrix into a coordinate in "camera 
space". Using these results you can adjust some camera settings (which ones 
would depend on whether you are using a perspective or parallel viewing 
transform) to achieve the desired results. If you want it to touch in all 
four directions, you'll also need to adjust the aspect ratio of the window.

Lisa

At 12:52 PM 3/10/00, Brian Alexander Todd wrote:
>Dear vtkusers,
>
>I would like to adjust the view on my vtkRenderWindow so
>that the all of the actors projected on the screen are
>inside the window but each edge of the window touches
>at least one actor.  This will make the window frame "snug"
>around the scene.
>
>Is there some easy way to achieve this effect?  If yes
>what is it?  If no could someone please suggest a general
>procedure to accomplish this?
>
>Thanks,
>Brian Todd
>
>
>Brian Todd
>email:      bat5 at po.cwru.edu
>home:       (216) 321-8882
>office:     (216) 368-4209
>fax:        (216) 368-4969
>
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