I want to calculate the orientation distribution of non spherical particles in a packed bed from the coordinates x, y and z and radii of the particle.

I want to calculate the orientation distribution of non spherical particles in a packed bed from the coordinates x, y and z and radii of the particle. The results can be ploted in histogram or at the different planes X-O-Y, X-O-Z , Y-O-Z plane. The sample plots are attached along this question. I am new to coding so dont know how to proceed with this problem.

Thanks in advance