Given an object graphics scene is there a way to determine the XYZ
data coordinates defined by an arbitrary subset of the camera's FOV?
Thanks!

On Apr 19, 3:38 pm, David Fanning <n...@dfanning.com> wrote:
> wclif...@harris.com writes:
> > Given an object graphics scene is there a way to determine the XYZ
> > data coordinates defined by an arbitrary subset of the camera's FOV?
>
> Rick is going to have to answer this, as I don't understand the
> question. Are you looking for something like the PickData method
> on an IDLgrWindow object:
>
>    http://www.dfanning.com/ographics_tips/pt3d.html
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

David,

   Sorry about the poor wording of my question. Despite that I believe
you have found the solution to my problem! It looks like the PickData
method will indeed do the job.
   I'm still more of a direct graphics guy but with the help of your
book, Ron's book and Rick's camera object I'm trying to change all
that.

Many thanks,
Bill

wclift01@harris.com writes:

> Given an object graphics scene is there a way to determine the XYZ
> data coordinates defined by an arbitrary subset of the camera's FOV?

Rick is going to have to answer this, as I don't understand the
question. Are you looking for something like the PickData method
on an IDLgrWindow object:

   http://www.dfanning.com/ographics_tips/pt3d.html

Cheers,

David
-- 
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")