ChartDirector 7.0 (Python Edition)

Multi-Depth Pie Chart




This example demonstrates a 3D pie chart where sectors have different 3D heights.

Instead of using PieChart.set3D to set a single 3D depth for all sectors, in this example, PieChart.set3D2 is used to set different depths for the sectors with an array of integers.

Source Code Listing

pythondemo\multidepthpie.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 = [72, 18, 15, 12] # The labels for the pie chart labels = ["Labor", "Machinery", "Facilities", "Computers"] # The depths for the sectors depths = [30, 20, 10, 10] # Create a PieChart object of size 360 x 300 pixels, with a light blue (DDDDFF) background and a 1 # pixel 3D border c = PieChart(360, 300, 0xddddff, -1, 1) # Set the center of the pie at (180, 175) and the radius to 100 pixels c.setPieSize(180, 175, 100) # Add a title box using 15pt Times Bold Italic font and blue (AAAAFF) as background color c.addTitle("Project Cost Breakdown", "Times New Roman Bold Italic", 15).setBackground(0xaaaaff) # Set the pie data and the pie labels c.setData(data, labels) # Draw the pie in 3D with variable 3D depths c.set3D2(depths) # Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in # descending order, because it ensures the tallest sector is at the back. c.setStartAngle(225) # Output the chart c.makeChart("multidepthpie.png")