Sets of Ellipses

Several examples of a very specific configuration: Ellipses with a fixed "flatness" or ellipticity (maps onto eccentricity), with orientation set to vary opposite the direction of the spirograph frame, and only traversing a fraction of a single loop of the frame, with semi-major axis set by the (inverse of) spacing of the points along the frame. Every one of these examples is based on the same simple spirograph wheel with seven "nodes" around a loop. New color-schemes arrived for this project: one based on the density of the points, and others based on their direction.