def segment(self, value, color='blue'):
"""return HTML string for a bar segment given a magnitude and color.
"""
if value <= 0:
return ""
else:
return str(Image(self.barfiles[color],
width=self.pixels(value),
height=13, alt=value) )
def gen_bar(self, value, color='blue'):
"""return Image object for the scaled bar graphic
"""
if value <= 0:
return ""
else:
bar = Image(self.barfiles[color],
width=self.pixels(value), height=13, alt=value)
return bar
def gen_legend(self):
"""Return an HTML string which displays the legend for the chart.
"""
s = []
for i in range(len(self.datalist.segment_names)):
s.append(
str(Image(self.barfiles[self.colors[i]], height=13, width=30)))
s.append(str(Font(self.datalist.segment_names[i], size=-1)))
s.append(" ")
return string.join(s, ' ')
def gen_legend(self):
"""Return an HTML string which displays the legend for the chart.
"""
sample = Image(self.barfiles['blue'], height=13, width=40)
return '<b>^%7.1f</b> lower bound<br> SCALE: %s = %7.1f units' % \
(self.zero, sample, self.scale * 40)