Custom Scatter Symbols

pythondemo\scattersymbols.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 XY points for the scatter chart
dataX = [200, 400, 300, 250, 500]
dataY = [40, 100, 50, 150, 250]

# The custom symbols for the points
symbols = ["robot1.png", "robot2.png", "robot3.png", "robot4.png", "robot5.png"]

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

# Set the plotarea at (55, 40) and of size 350 x 300 pixels, with a light grey border (0xc0c0c0).
# Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
c.setPlotArea(55, 40, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1)

# Add a title to the chart using 18pt Times Bold Itatic font.
c.addTitle("Battle Robots", "Times New Roman Bold Italic", 18)

# Add a title to the y axis using 12pt Arial Bold Italic font
c.yAxis().setTitle("Speed (km/s)", "Arial Bold Italic", 12)

# Add a title to the y axis using 12pt Arial Bold Italic font
c.xAxis().setTitle("Range (km)", "Arial Bold Italic", 12)

# Set the axes line width to 3 pixels
c.xAxis().setWidth(3)
c.yAxis().setWidth(3)

# Add each point of the data as a separate scatter layer, so that they can have a different symbol
for i in range(0, len(dataX)) :
    c.addScatterLayer([dataX[i]], [dataY[i]]).getDataSet(0).setDataSymbol2(symbols[i])

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