I am writing cgi script to create humanoid figure. I have assembled primitive objects into a stick figure, using openscad, blender, contextfree. My blender script is at http://www.pasteall.org/73878. I would like math formulas and such, to modify each primitave, for a more realistic body part. The best reference I found was the book "Figure drawing for all it's worth, by Andrew loomis". It shows some proportions, but I need more than this book. Or another way to ask this question is, how to assemble primitaves to make a foot?

Good work so far. Is there a reason you chose to use cylinders instead of boxes for the body parts? When I run the script currently, it generates the figure from cylinders as expected, although the scale seems extraordinarily large and some clipping occurs in the viewport.

Thank you for your comments on the script. I use cylinders because they require the most exact control, like rotation. It is difficult to tell if a box is rotated or simply changed width and height. If a cylinder works, everything else will work also. I know there are some problems with the blender script. If you would like to help with that, tell me and I will update with some fixes I have. But my origional question was about mathematical anatimy, not blender python programming.