Web developer and autodidact with an interest in creative coding.
// Return the distance from center to edge at the given angle in a regular n-gon, in the range [0, 1].
//
// Parameters:
// - count: number of sides
// - angle: the angle in radians for which to query the distance
// - offset: angle of vertices in radians, defaults to first vertex at 0°
function edgeDistance(count, angle, offset = 0) {
return Math.cos(Math.PI / count) / Math.cos(Math.PI / count * tri(.5 + .5 * count / Math.PI * (angle - offset)));
}
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