ChartDirector 7.0 (Python Edition)

Pie Chart with Legend (1)




This example demonstrates how to add a legend box to a pie chart. It also demonstrates alternative sector label format and rounded edge sector shading.

Source Code Listing

pythondemo\legendpie.py
#!/usr/bin/python # The ChartDirector for Python module is assumed to be in "../lib" import sys, os sys.path.insert(0, os.path.join(os.path.abspath(sys.path[0]), "..", "lib")) from pychartdir import * # The data for the pie chart data = [25, 18, 15, 12, 8, 30, 35] # The labels for the pie chart labels = ["Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"] # Create a PieChart object of size 450 x 270 pixels c = PieChart(450, 270) # Set the center of the pie at (150, 100) and the radius to 80 pixels c.setPieSize(150, 135, 100) # add a legend box where the top left corner is at (330, 50) c.addLegend(330, 60) # modify the sector label format to show percentages only c.setLabelFormat("{percent}%") # Set the pie data and the pie labels c.setData(data, labels) # Use rounded edge shading, with a 1 pixel white (FFFFFF) border c.setSectorStyle(RoundedEdgeShading, 0xffffff, 1) # Output the chart c.makeChart("legendpie.png")