def get_values(self):
b = [float(x) for x in self.begin.split(',')]
e = [float(x) for x in self.end.split(',')]
b_hsv = rgb2hsv(b)
e_hsv = rgb2hsv(e)
size_fact = 1.0 / (float(self.size) - 1.0)
# Ignore the undefined hues
if b_hsv[0] is None:
b_hsv[0] = e_hsv[0]
elif e_hsv[0] is None:
e_hsv[0] = b_hsv[0]
if b_hsv[0] is None:
# There is no hue at all!
b_hsv[0] = e_hsv[0] = 0.0 # unused value
hue_step = 0.0
else:
# Compute hue
# Because the hue is an angle, there is two ways to interpolate it;
# choose the shorter path
diff1 = e_hsv[0] - b_hsv[0]
diff2 = e_hsv[0] - b_hsv[0] + 360.0
if diff2 >= 360.0:
diff2 -= 360.0
assert 0.0 <= diff2 < 360.0
if abs(diff1) < abs(diff2):
hue_step = diff1
else:
hue_step = diff2
colors = []
for i in xrange(self.size):
u = i * size_fact
hue = b_hsv[0] + u * hue_step
if hue < 0.0:
hue += 360.0
elif hue > 360.0:
hue -= 360.0
colors.append(Color.to_string(*hsv2rgb((
hue,
b_hsv[1] + u * (e_hsv[1] - b_hsv[1]),
b_hsv[2] + u * (e_hsv[2] - b_hsv[2])
))))
return colors
def get_value(self):
return Color.to_string(self.qcolor.redF(), self.qcolor.greenF(),
self.qcolor.blueF())
def get_value(self):
return Color.to_string(self.qcolor.redF(),
self.qcolor.greenF(),
self.qcolor.blueF())
def fun(b, e, s, i):
b = [float(x) for x in b.split(',')]
e = [float(x) for x in e.split(',')]
u = float(i) / (float(s) - 1.0)
[r,g,b] = [b[i] + u * (e[i] - b[i]) for i in [0,1,2]]
return Color.to_string(r, g, b)
