plotting coordinates of a file that has been drawn on a cad system

Hi

Say someone draws a cube
on a cad system like unigraphics which uses open GL to render 3d models and wire frames its a drawing API that is used to design.
I`m wanting to know is there any way that I can load the the design (file) and some how
figure out the xyz coordinates of the cube in inches .

What I`m tring to do is load the cube and and some how figure out the cube size in inches
and have a ball go around the inside of the cube

I would assume that all the dimensions of your model are stored within the design file. What format is it? What do you mean by “figure out the xyz coordinates of the cube in inches”? Are you looking to scale your model such that it lies in real world (imperial) coordinates? Try to explain in a little bit more detail.

jimmi