This example creating a horizontal box-whisker chart. The box-whisker layer is created using
XYChart.addBoxWhiskerLayer, and the chart is set to horizontal using
XYChart.swapXY.
[File: pythondemo/boxwhisker2.py] (The CGI version is available as "pythondemo_cgi/boxwhisker2.py".)
#!/usr/bin/python
from pychartdir import *
#Sample data for the Box-Whisker chart. Represents the minimum, 1st quartile,
#medium, 3rd quartile and maximum values of some quantities
Q0Data = [40, 45, 35]
Q1Data = [55, 60, 50]
Q2Data = [62, 70, 60]
Q3Data = [70, 80, 65]
Q4Data = [80, 90, 75]
#The labels for the chart
labels = ["<*img=robot1.png*>\nBipedal Type", "<*img=robot2.png*>\nWolf Type",
"<*img=robot5.png*>\nBird Type"]
#Create a XYChart object of size 540 x 320 pixels
c = XYChart(540, 320)
#swap the x and y axes to create a horizontal box-whisker chart
c.swapXY()
#Set the plotarea at (75, 25) and of size 440 x 270 pixels. Enable both
#horizontal and vertical grids by setting their colors to grey (0xc0c0c0)
c.setPlotArea(75, 25, 440, 270).setGridColor(0xc0c0c0, 0xc0c0c0)
#Add a title to the chart
c.addTitle(" Robot Shooting Accuracy Scores")
#Set the labels on the x axis and the font to Arial Bold
c.xAxis().setLabels(labels).setFontStyle("arialbd.ttf")
#Disable x axis ticks by setting the length to 0
c.xAxis().setTickLength(0)
#Set the font for the y axis labels to Arial Bold
c.yAxis().setLabelStyle("arialbd.ttf")
#Add a Box Whisker layer using light blue 0x9999ff as the fill color and blue
#(0xcc) as the line color. Set the line width to 2 pixels
c.addBoxWhiskerLayer(Q3Data, Q1Data, Q4Data, Q0Data, Q2Data, 0x9999ff, 0xcc
).setLineWidth(2)
#output the chart
c.makeChart("boxwhisker2.png")
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