Algorithm to evaluate the Z-height and the support's volume at a given orientation

[azn90-z 0]

I am looking for a Python code (similar to this: https://github.com/WoLpH/numpy-stl) that can calculate the Z-height and support’s volume for an stl file at various orientations (e.g., the user will input the orientation (angles in x,y,z and the code will give two outputs which are the Z-height and the support’s volume for every orientation). I was wondering if anyone has an experience on this. Thank you.