Spirograph / Trochoid (SVG)

offline-ready

Mode

Inside (Hypotrochoid)

Inside Outside

R (fixed radius)

r (rolling radius)

d (pen offset)

num_points (samples)

Draw animation speed

Higher = draws faster (visual only, SVG export unchanged).

Animation: off Progress: 0%

Preview

The Draw (visual) mode shows the two “arms” and the rolling circle while the curve is traced from scratch. It does not change how the SVG is generated or saved.