Polygonal String Art

Polygons in polygons, turning, turning... Inspired by a mathgif from gugo torelli: http://gugo-torelli.tumblr.com/post/77909174796/008-more-geometry-experiments-one-sketch-a In this sketch: n controls how many rotations around the center, m controls the number of sides of the inner polygon, t animates the turning of those polygons and d controls the ratio of the side of the inner polygon to the outer polygon. Gugo's gif has n=m and d=.5 for some quite lovely designs.