def generatePlotPanel(self, plotTitle, listData, showLegend, showTooltip):
"""
1) Create a PieDataset
2) Create a PieChart (or Create a PiePlot and put it in a JFreeChart)
3) Put the PieChart in a ChartPanel
"""
# Get a dictionary of value occurence in the list {value1:count, value2:count...}
dataDico = Counter(listData)
#print dataDico # value: counts OK
# Create a Pie dataset from the dicoData
pieDataset = DefaultPieDataset()
for key, value in dataDico.items():
#print key, value
pieDataset.setValue(key, value)
# Create an instance of JFreeChart
urls = False
chart = ChartFactory.createPieChart(plotTitle, pieDataset, showLegend, showTooltip, urls)
# Alternative way
#piePlot = PiePlot(pieDataset)
#chart = JFreeChart(plotTitle, piePlot)
return ChartPanel(chart)
def pie(data, name='', trid=False):
"""
Creates a pie chart.
*data* is a ``dict`` whose keys are category names and values are numeric
values.
Setting *trid* to ``True`` results in a 3D char.
"""
dataset = DefaultPieDataset();
for k,v in data.iteritems():
dataset.setValue(k, v)
if trid:
chart = ChartFactory.createPieChart3D(name, dataset, True, True, False)
else:
chart = ChartFactory.createPieChart(name, dataset, True, True, False)
return Chart(chart)
