Shimmia Zoobie Yinyo SnakeCharmer Resonata Squared Rosaly Dragoria Curlicor Dragoric Curlicue Fractal Quadrina Toroidia Net of Indra Trochor

Trochor – Animated Virtual Harmonograph

Filed under: Uncategorized — frm @ 2:32 pm

The pattern traced out by Trochor is what you’d get if you took a pencil moving in ellipses, and used it to draw on a sheet of paper that’s also moving in ellipses. It’s a bit like a spirograph, but not constrained in quite the same ways. It’s more like a harmonograph; more on that later.

Have fun, play around with the settings, especially ‘ratio’; that’s probably the best way of figuring out what’s going on. ‘Eccentricity’, by the way, is a measure of how flattened an ellipse is – an ellipse with 0 eccentricity is a circle, one with 1 is a line.