def draw(self, style, size, output, labels=None):
args = []
colors = []
for dataset in self.datasets:
if isinstance(dataset, ChartData):
args.append(dataset.data)
colors.append(dataset.color)
else:
args.append(dataset)
colors.append('black')
# Default for X axis labels (numbered 1..n)
if not labels:
labels = [str(i) for i in range(1, len(args[0])+1)]
# set colors for the data sets
if colors:
self.option(set_color=[int(Color(c)) for c in colors])
# pass options to gdchart and render the chart
gdchart.option(**self.options)
# limit label length in order to workaround bugs in gdchart
labels = [x[:32] for x in labels]
gdchart.chart(*((style, size, output, labels) + tuple(args)))
def draw(self, style, size, output, labels=None):
args = []
colors = []
for dataset in self.datasets:
if isinstance(dataset, ChartData):
args.append(dataset.data)
colors.append(dataset.color)
else:
args.append(dataset)
colors.append('black')
# Default for X axis labels (numbered 1..n)
if not labels:
labels = [str(i) for i in range(1, len(args[0]) + 1)]
# set colors for the data sets
if colors:
self.option(set_color=[int(Color(c)) for c in colors])
# pass options to gdchart and render the chart
gdchart.option(**self.options)
# limit label length in order to workaround bugs in gdchart
labels = [x[:32] for x in labels]
gdchart.chart(*((style, size, output, labels) + tuple(args)))
def draw(self):
"""Erstellt Chart als GIF. Gibt das GIF als string zurück."""
# Put options into effect.
gdchart.option(*(), **self.options)
data = cStringIO.StringIO()
args = (gdchart.GDC_3DBAR, self.size,
data,
self.names,
self.frequencies)
gdchart.chart(*args)
return data.getvalue()
