## Unduloid

Additional images: Anaglyph, Anaglyph Wireframe, Parallel Stereo

Unduloid describes a family of surface of revolution. Let a conics section roll
on a line. Its focus traces out a curve. This curve revolved around the line
generates the unduloid. The above image shows an unduloid where the rolling
curve is an ellipse. It has a mean curvature of 1. If the rolling curve is
a parabola, a catenoid will be generated, and has mean curvature of 0.

unduloid.mov

This movie shows the generation of unduloid by rolling an ellipse.

Supporting files: