OpenScad Revolids

I've wanted to see how much can be done with OpenScad to generate more basic solids. Now that I've gotten my 100th design out of the way, here's more OpenScad mayhem.

This thing is a little library of 'Solids of Revolution' (revolids).

It's simple stuff that you can easily do with OpenScad (torus, ellipsoid, bezier curves rotated. In this case, I'm doing my own math though, and utilizing the Renderer that I did for the Bezier surface stuff.

This library allows me to play with differen