Function angleNorm

util.go:69–75

angleNorm returns the angle theta in the range [0,2PI).

(theta float64)

// angleNorm returns the angle theta in the range [0,2PI).
func angleNorm(theta float64) float64 {
	theta = math.Mod(theta, 2.0*math.Pi)
	if theta < 0.0 {
		theta += 2.0 * math.Pi
	}
	return theta
}

// angleTime returns the time [0.0,1.0] of theta between [lower,upper]. When outside of [lower,upper], the result will also be outside of [0.0,1.0].
func angleTime(theta, lower, upper float64) float64 {