Choose a shape to see it reconstructed by epicycles
Fourier Epicycle Drawing Machine
Any shape — no matter how complex — can be reconstructed using a chain of rotating circles called epicycles. This is the geometric interpretation of the Fourier Transform.
Each circle rotates at a different frequency. The tip of the last circle traces out the original shape. More circles = more detail.
Controls:
✏️ Draw your own shape
◧ Browse preset shapes
⏵ Play / pause animation
↺ Reset the trace
Draw something beautiful.