ChartDirector 7.0 (Python Edition)

Rotated Pyramid Chart




This example demonstrates a semi-transparent pyramid viewed at elevation and rotation angles. It also demonstrates adding a legend box to the pyramid chart.

The elevation and rotation angles are set using PyramidChart.setViewAngle. The legend box is added using BaseChart.addLegend. Semi-transparent colors are used to make the pyramid semi-transparent.

Source Code Listing

pythondemo\rotatedpyramid.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 pyramid chart data = [156, 123, 211, 179] # The labels for the pyramid chart labels = ["Funds", "Bonds", "Stocks", "Cash"] # The semi-transparent colors for the pyramid layers colors = [0x400000cc, 0x4066aaee, 0x40ffbb00, 0x40ee6622] # Create a PyramidChart object of size 450 x 400 pixels c = PyramidChart(450, 400) # Set the pyramid center at (220, 180), and width x height to 150 x 300 pixels c.setPyramidSize(220, 180, 150, 300) # Set the elevation to 15 degrees and rotation to 75 degrees c.setViewAngle(15, 75) # Set the pyramid data and labels c.setData(data, labels) # Set the layer colors to the given colors c.setColors2(DataColor, colors) # Leave 1% gaps between layers c.setLayerGap(0.01) # Add a legend box at (320, 60), with light grey (eeeeee) background and grey (888888) border. Set # the top-left and bottom-right corners to rounded corners of 10 pixels radius. legendBox = c.addLegend(320, 60) legendBox.setBackground(0xeeeeee, 0x888888) legendBox.setRoundedCorners(10, 0, 10, 0) # Add labels at the center of the pyramid layers using Arial Bold font. The labels will show the # percentage of the layers. c.setCenterLabel("{percent}%", "Arial Bold") # Output the chart c.makeChart("rotatedpyramid.png")