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Prevent division by 0 xy->rgb color conversion

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This commit is contained in:
Paulus Schoutsen 2015-12-29 00:09:38 -08:00
parent d9b30d1421
commit 586be7fad1
1 changed files with 6 additions and 2 deletions
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4
homeassistant/util/color.py
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@ -53,8 +53,12 @@ def color_xy_brightness_to_RGB(vX, vY, brightness):
return (0, 0, 0) return (0, 0, 0)
Y = brightness Y = brightness
if vY != 0:
X = (Y / vY) * vX X = (Y / vY) * vX
Z = (Y / vY) * (1 - vX - vY) Z = (Y / vY) * (1 - vX - vY)
else:
X = 0
Z = 0
# Convert to RGB using Wide RGB D65 conversion. # Convert to RGB using Wide RGB D65 conversion.
r = X * 1.612 - Y * 0.203 - Z * 0.302 r = X * 1.612 - Y * 0.203 - Z * 0.302