import math

def hsv_to_rgb(h, s, v):
	"""Convert HSV to RGB (all values as floats between 0 and 1).
	Algorithm from http://www.cs.rit.edu/~ncs/color/t_convert.html"""
	if s == 0.0:
		return (v, v, v)
	h *= 6
	i = int(math.floor(h))
	f = h - i
	p = v * (1 - s)
	q = v * (1 - (s * f))
	t = v * (1 - (s * (1 - f)))
	if i == 0:
		return (v, t, p)
	elif i == 1:
		return (q, v, p)
	elif i == 2:
		return (p, v, t)
	elif i == 3:
		return (p, q, v)
	elif i == 4:
		return (t, p, v)
	else:
		return (v, p, q)