ChartDirector Ver 3.0 (Python Edition)

3D Stacked Area Chart




This example creating a stacked area chart with 3D effects. The followings are key features of this example:

Source Code Listing

[File: pythondemo/threedstackarea.py] (The CGI version is available as "pythondemo_cgi/threedstackarea.py".)
#!/usr/bin/python from pychartdir import * #The data for the area chart data0 = [42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60, 70, 76, 63, 67, 75, 64, 51] data1 = [50, 45, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84, 82, 80, 84, 89] data2 = [61, 79, 85, 66, 53, 39, 24, 21, 37, 56, 37, 22, 21, 33, 13, 17, 4, 23, 16, 25, 9, 10, 5, 7, 16] labels = ["0", "-", "2", "-", "4", "-", "6", "-", "8", "-", "10", "-", "12", "-", "14", "-", "16", "-", "18", "-", "20", "-", "22", "-", "24"] #Create a XYChart object of size 500 x 300 pixels c = XYChart(500, 300) #Set the plotarea at (90, 30) and of size 300 x 240 pixels. c.setPlotArea(90, 30, 300, 240) #Add a legend box at (405, 100) c.addLegend(405, 100) #Add a title to the chart c.addTitle("Daily System Load") #Add a title to the y axis. Draw the title upright (font angle = 0) c.yAxis().setTitle("Database\nQueries\n(per sec)").setFontAngle(0) #Set the labels on the x axis c.xAxis().setLabels(labels) #Add an area layer layer = c.addAreaLayer() #Draw the area layer in 3D layer.set3D() #Add the three data sets to the area layer layer.addDataSet(data0, -1, "Server # 1") layer.addDataSet(data1, -1, "Server # 2") layer.addDataSet(data2, -1, "Server # 3") #output the chart c.makeChart("threedstackarea.png")