Would this be the code to study to try to figure out a 'simple'
solution, especially the last four lines?
def _renderDayNight(self, sdraw):
"""Draw vertical bands for day/night."""
(first, transitions) = weeutil.weeutil.getDayNightTransitions(
self.xscale[0], self.xscale[1], self.latitude, self.longitude)
color = self.daynight_day_color \
if first == 'day' else self.daynight_night_color
xleft = self.xscale[0]
for x in transitions:
sdraw.rectangle(((xleft,self.yscale[0]),
(x,self.yscale[1])), fill=color)
xleft = x
color = self.daynight_night_color \
if color == self.daynight_day_color else
self.daynight_day_color
sdraw.rectangle(((xleft,self.yscale[0]),
(self.xscale[1],self.yscale[1])), fill=color)
if self.daynight_gradient:
if first == 'day':
color1 = self.daynight_day_color
color2 = self.daynight_night_color
else:
color1 = self.daynight_night_color
color2 = self.daynight_day_color
nfade = self.daynight_gradient
# gradient is longer at the poles than the equator
d = 120 + 300 * (1 - (90.0 - abs(self.latitude)) / 90.0)
for i in range(len(transitions)):
last_ = self.xscale[0] if i == 0 else transitions[i-1]
next_ = transitions[i+1] if i < len(transitions)-1 else
self.xscale[1]
for z in range(1,nfade):
c = blend_hls(color2, color1, float(z)/float(nfade))
rgbc = int2rgbstr(c)
x1 = transitions[i]-d*(nfade+1)/2+d*z
if last_ < x1 < next_:
sdraw.rectangle(((x1, self.yscale[0]),
(x1+d, self.yscale[1])),
fill=rgbc)
if color1 == self.daynight_day_color:
color1 = self.daynight_night_color
color2 = self.daynight_day_color
else:
color1 = self.daynight_day_color
color2 = self.daynight_night_color
# draw a line at the actual sunrise/sunset
for x in transitions:
sdraw.line((x,x),(self.yscale[0],self.yscale[1]),
fill=self.daynight_edge_color)
--
You received this message because you are subscribed to the Google Groups
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion visit
https://groups.google.com/d/msgid/weewx-user/f72b6d8a-c393-4b11-abe9-a5894158012a%40gmail.com.
