Box-Whisker Chart (2)

pythondemo\boxwhisker2.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 *

# Sample data for the Box-Whisker chart. Represents the minimum, 1st quartile, medium, 3rd quartile
# and maximum values of some quantities
Q0Data = [40, 45, 40, 30, 20, 50, 25, 44]
Q1Data = [55, 60, 50, 40, 38, 60, 51, 60]
Q2Data = [62, 70, 60, 50, 48, 70, 62, 70]
Q3Data = [70, 80, 65, 60, 53, 78, 69, 76]
Q4Data = [80, 90, 75, 70, 60, 85, 80, 84]

# The labels for the chart
labels = ["A", "B", "C", "D", "E", "F", "G", "H"]

# Create a XYChart object of size 450 x 400 pixels
c = XYChart(450, 400)

# Set the plotarea at (50, 30) and of size 380 x 340 pixels, with transparent background and border
# and light grey (0xcccccc) horizontal grid lines
c.setPlotArea(50, 30, 380, 340, Transparent, -1, Transparent, 0xcccccc)

# Add a title box using grey (0x555555) 18pt Arial font
title = c.addTitle("     Pattern Recognition Accuracy", "Arial", 18, 0x555555)

# Set the x and y axis stems to transparent and the label font to 12pt Arial
c.xAxis().setColors(Transparent)
c.yAxis().setColors(Transparent)
c.xAxis().setLabelStyle("Arial", 12)
c.yAxis().setLabelStyle("Arial", 12)

# Set the labels on the x axis
c.xAxis().setLabels(labels)

# For the automatic y-axis labels, set the minimum spacing to 30 pixels.
c.yAxis().setTickDensity(30)

# Add a box whisker layer using light blue (0x99ccee) for the fill color and blue (0x6688aa) for the
# whisker color. Set line width to 2 pixels. Use rounded corners and bar lighting effect.
b = c.addBoxWhiskerLayer(Q3Data, Q1Data, Q4Data, Q0Data, Q2Data, 0x99ccee, 0x6688aa)
b.setLineWidth(2)
b.setRoundedCorners()
b.setBorderColor(Transparent, barLighting())

# Adjust the plot area to fit under the title with 10-pixel margin on the other three sides.
c.packPlotArea(10, title.getHeight(), c.getWidth() - 10, c.getHeight() - 10)

# Output the chart
c.makeChart("boxwhisker2.png")