def Spiral():
length = len(SPIRAL)
for number, val in enumerate(SPIRAL): # up from bottom
print("S",number,number/length,val)
tree[val].color = Color.from_hsv(0.8,number/length,1).rgb
for number, val in reversed(list(enumerate(SPIRAL))): # down from top
print("S",number,number/length,val)
tree[val].color = Color.from_hsv(0.8,number/length,1).rgb
def red_to_blue(duration):
hue = 1.0
t = 0
tree.color = Color.from_hsv(hue, 1.0, 0.5)
while t < duration * 20:
relt = t % 100
if relt > 50:
hue = 1.0 - ((100 - relt) / 50.0 * 0.4)
else:
hue = 1.0 - (relt / 50.0 * 0.4)
tree.color = Color.from_hsv(hue, 1.0, 0.5)
t = t + 1
sleep(0.05)
def random_color():
h = random()
s = 1
v = 1
hsv = Color.from_hsv(h,s,v)
rgb = hsv.rgb
#
return (rgb)
def random_color():
# You can either use the hsv model (preferred)..
h = random()
s = 1
v = 1
hsv = Color.from_hsv(h, s, v)
rgb = hsv.rgb
#
# ..or use the rgb model
#r = random()
#g = random()
#b = random()
#rgb = Color.from_rgb(r,g,b).rgb
#
return (rgb)
def lighthouse(duration):
t = 0
groups = [[0, 1, 2], [16, 17, 18], [13, 14, 15], [4, 5, 6], [10, 11, 12],
[22, 23, 24], [19, 20, 21], [7, 8, 9]]
colors = [(1, 1, 0) for x in range(25)]
hue = 0
while t < duration * 20:
gh = hue
for g in groups:
for i in g:
colors[i] = Color.from_hsv(1.0, 0.0, gh)
gh = gh + 0.125
if gh > 1:
gh = gh - 1
hue = hue + 1.0 / 45.0
if hue > 1:
hue = hue - 1
tree.value = colors
t = t + 1
sleep(0.05)
def test_color_from_hsv():
verify_color(Color.from_hsv(0, 0, 0), (0.0, 0.0, 0.0))
verify_color(Color.from_hsv(0, 0, 1), (1.0, 1.0, 1.0))
verify_color(Color.from_hsv(0, 0, 2), (1.0, 1.0, 1.0))
verify_color(Color.from_hsv(0, 1, 1), (1.0, 0.0, 0.0))
"https://thepihut.com/products/3d-rgb-xmas-tree-for-raspberry-pi"
" https://github.com/gilesknap/raspitree")
parser.add_argument("--brightness",
help="brightness for all LEDs",
type=float,
default=0.1)
parser.add_argument("--degrees",
help="hue separation between each row",
type=int,
default=80)
parser.add_argument("--pause",
help="pause after update in secs",
type=float,
default=0)
args = parser.parse_args()
tree.brightness = args.brightness
tree.on()
hue = 0
while True:
for row in order:
hue += args.degrees / 360
hue %= 1.0
for pixel_number in row:
c = Color.from_hsv(hue, 1.0, 1.0)
tree[pixel_number].color = c
tree.update()
sleep(args.pause)
