ChartDirector Ver 3.0 (Python Edition)

Multi-Color Bar Chart




A multi-color bar chart is a bar chart in which each bar has a different color. This example creates a multi-color bar chart and demonstrates the following ChartDirector features:

Source Code Listing

[File: pythondemo/colorbar.py] (The CGI version is available as "pythondemo_cgi/colorbar.py".)
#!/usr/bin/python from pychartdir import * #The data for the bar chart data = [85, 156, 179.5, 211, 123] #The labels for the bar chart labels = ["Mon", "Tue", "Wed", "Thu", "Fri"] #The colors for the bar chart colors = [0xb8bc9c, 0xa0bdc4, 0x999966, 0x333366, 0xc3c3e6] #Create a XYChart object of size 260 x 220 pixels c = XYChart(260, 220) #Set the background color of the chart to gold (goldGradient). Use a 2 pixel 3D #border. c.setBackground(c.gradientColor(goldGradient), -1, 2) #Add a title box using 10 point Arial Bold font. Set the background color to #blue metallic (blueMetalGradient). Use a 1 pixel 3D border. c.addTitle("Daily Network Load", "arialbd.ttf", 10).setBackground( c.gradientColor(blueMetalGradient), -1, 1) #Set the plotarea at (40, 40) and of 200 x 150 pixels in size c.setPlotArea(40, 40, 200, 150) #Add a multi-color bar chart layer using the given data and colors. Use a 1 #pixel 3D border for the bars. c.addBarLayer3(data, colors).setBorderColor(-1, 1) #Set the x axis labels using the given labels c.xAxis().setLabels(labels) #output the chart c.makeChart("colorbar.png")