def makeColorwheel()

in flow_color.py [0:0]


def makeColorwheel():

	#  color encoding scheme

	#   adapted from the color circle idea described at
	#   http://members.shaw.ca/quadibloc/other/colint.htm

	RY = 15
	YG = 6
	GC = 4
	CB = 11
	BM = 13
	MR = 6

	ncols = RY + YG + GC + CB + BM + MR

	colorwheel = np.zeros([ncols, 3]) # r g b

	col = 0
	#RY
	colorwheel[0:RY, 0] = 255
	colorwheel[0:RY, 1] = np.floor(255*np.arange(0, RY, 1)/RY)
	col += RY

	#YG
	colorwheel[col:YG+col, 0]= 255 - np.floor(255*np.arange(0, YG, 1)/YG)
	colorwheel[col:YG+col, 1] = 255;
	col += YG;

	#GC
	colorwheel[col:GC+col, 1]= 255 
	colorwheel[col:GC+col, 2] = np.floor(255*np.arange(0, GC, 1)/GC)
	col += GC;

	#CB
	colorwheel[col:CB+col, 1]= 255 - np.floor(255*np.arange(0, CB, 1)/CB)
	colorwheel[col:CB+col, 2] = 255
	col += CB;

	#BM
	colorwheel[col:BM+col, 2]= 255 
	colorwheel[col:BM+col, 0] = np.floor(255*np.arange(0, BM, 1)/BM)
	col += BM;

	#MR
	colorwheel[col:MR+col, 2]= 255 - np.floor(255*np.arange(0, MR, 1)/MR)
	colorwheel[col:MR+col, 0] = 255
	return 	colorwheel