How to test if a point is inside an STL defined object?

If would like to know if point x,y,z exists inside or outside a volume defined by an STL file.

I have writen some code that nearly works; but there's has to be a better way. :)

Answer 1

[Michael Snyder]

Here's the answer to my own question, it took a while this download is working.

http://www.mathworks.com/matlabcentral/fileexchange/37856-inpolyhedron-are-points-inside-a-triangulated-volume