Rotated Pyramid Chart

This example demonstrates a semi-transparent pyramid viewed at elevation and rotation angles. It also demonstrates adding a legend box to the pyramid chart.

The elevation and rotation angles are set using PyramidChart.setViewAngle. The legend box is added using BaseChart.addLegend. Semi-transparent colors are used to make the pyramid semi-transparent.

pythondemo\rotatedpyramid.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 data for the pyramid chart
data = [156, 123, 211, 179]

# The labels for the pyramid chart
labels = ["Funds", "Bonds", "Stocks", "Cash"]

# The semi-transparent colors for the pyramid layers
colors = [0x400000cc, 0x4066aaee, 0x40ffbb00, 0x40ee6622]

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

# Set the pyramid center at (220, 180), and width x height to 150 x 300 pixels
c.setPyramidSize(220, 180, 150, 300)

# Set the elevation to 15 degrees and rotation to 75 degrees
c.setViewAngle(15, 75)

# Set the pyramid data and labels
c.setData(data, labels)

# Set the layer colors to the given colors
c.setColors2(DataColor, colors)

# Leave 1% gaps between layers
c.setLayerGap(0.01)

# Add a legend box at (320, 60), with light grey (eeeeee) background and grey (888888) border. Set
# the top-left and bottom-right corners to rounded corners of 10 pixels radius.
legendBox = c.addLegend(320, 60)
legendBox.setBackground(0xeeeeee, 0x888888)
legendBox.setRoundedCorners(10, 0, 10, 0)

# Add labels at the center of the pyramid layers using Arial Bold font. The labels will show the
# percentage of the layers.
c.setCenterLabel("{percent}%", "Arial Bold")

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