Built this after struggling with circular calendar geometry.
Handles the trigonometry for positioning events around annual wheels.
Demo: https://codepen.io/mahmoodseoud/pen/ByjJOVE
Early version but working. Dual licensed (AGPL/Commercial).
Demo: https://codepen.io/mahmoodseoud/pen/ByjJOVE
Early version but working. Dual licensed (AGPL/Commercial).