ChartDirector 7.0 (Python Edition)

Simple Area Chart




This example demonstrates the basic steps in creating area charts.

Source Code Listing

pythondemo\simplearea.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 area chart data = [30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35, 50, 66, 56, 48, 52, 65, 62] # The labels for the area chart labels = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24"] # Create a XYChart object of size 250 x 250 pixels c = XYChart(250, 250) # Set the plotarea at (30, 20) and of size 200 x 200 pixels c.setPlotArea(30, 20, 200, 200) # Add an area chart layer using the given data c.addAreaLayer(data) # Set the labels on the x axis. c.xAxis().setLabels(labels) # Display 1 out of 3 labels on the x-axis. c.xAxis().setLabelStep(3) # Output the chart c.makeChart("simplearea.png")