Color wheel: Difference between revisions

=={{header|Processing_Python}}==

<lang python>

size(300, 300)

background(0)

radius = min(width, height) / 2.0

cx, cy = width / 2, width / 2

for x in range(width):

for y in range(height):

rx = x - cx

ry = y - cy

s = ((x - cx) ** 2.0 + (y - cy) ** 2.0) ** 0.5 / radius

if s <= 1.0:

h = ((atan2(ry, rx) / PI) + 1.0) / 2.0

colorMode(HSB)

c = color(int(h * 255), int(s * 255), 255)

set(x, y, c)

</lang>