def rainbow(node):
'''Colour using only changes in hue.
It will go from 0 to 0.8 which is red, orange, yellow, green, cyan, blue,
then purple.
See http://en.wikipedia.org/wiki/Hue for more information on hue.
'''
return Color.hsv(node.time.fraction * 0.8, 0.4, 0.9)
def rainbow(node):
"""Colour using only changes in hue.
It will go from 0 to 0.8 which is red, orange, yellow, green, cyan, blue,
then purple.
See http://en.wikipedia.org/wiki/Hue for more information on hue.
"""
return Color.hsv(node.time.fraction * 0.8, 0.4, 0.9)
def test_hsv():
c = Color.hsv(0.1, 0.5, 0.75, 0.25)
assert c.r == 0.75
assert abs(c.g - 0.6) < 0.1 # Floating point comparison inaccurate
assert abs(c.b - 0.375) < 0.1
assert c.a == 0.25
def rand(node):
return Color.hsv(
random.random(),
node.calls.fraction * 0.5 + 0.5,
node.calls.fraction * 0.5 + 0.5,
)
def greyscale(node):
'''Goes from dark grey to a light grey.'''
return Color.hsv(0, 0, node.time.fraction / 2 + 0.4)
def rand(node):
return Color.hsv(
random.random(),
node.calls.fraction * 0.5 + 0.5,
node.calls.fraction * 0.5 + 0.5,
)
def greyscale(node):
"""Goes from dark grey to a light grey."""
return Color.hsv(0, 0, node.time.fraction / 2 + 0.4)
def greyscale(node):
return Color.hsv(0, 0, node.time.fraction / 2 + 0.4)
def rainbow(node):
return Color.hsv(node.time.fraction * 0.8, 0.4, 0.9)