Geometric Waveform Generator Epicycloid Generator (The Annulus Wave) This shape is generated by a **Rolling Circle** (Radius $R_r$) orbiting a **Fixed Circle** (Radius $R_f$). The resulting topology is defined by the ratio $\mathbf{n = R_f / R_r}$. Rolling Circle Radius ($R_r$): 75 Fixed Circle Radius ($R_f$): 150 (Locked) Ratio (n): 2.00