ChartDirector 5.1 (Python Edition)

Cone Chart




This example demonstrates using PyramidChart.setConeSize to specify using a cone instead of a pyramid to represent the data.

Source Code Listing

[Standalone Version] pythondemo\cone.py
#!/usr/bin/python
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 = [0x60000088, 0x6066aaee, 0x60ffbb00, 0x60ee6622]

# Create a PyramidChart object of size 480 x 400 pixels
c = PyramidChart(480, 400)

# Set the cone center at (280, 180), and width x height to 150 x 300 pixels
c.setConeSize(280, 180, 150, 300)

# Set the elevation to 15 degrees
c.setViewAngle(15)

# 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 labels at the left side of the pyramid layers using Arial Bold font. The labels
# will have 3 lines showing the layer name, value and percentage.
c.setLeftLabel("{label}\nUS ${value}K\n({percent}%)", "arialbd.ttf")

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

[CGI Version] pythondemo_cgi\cone.py
#!/usr/bin/python
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 = [0x60000088, 0x6066aaee, 0x60ffbb00, 0x60ee6622]

# Create a PyramidChart object of size 480 x 400 pixels
c = PyramidChart(480, 400)

# Set the cone center at (280, 180), and width x height to 150 x 300 pixels
c.setConeSize(280, 180, 150, 300)

# Set the elevation to 15 degrees
c.setViewAngle(15)

# 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 labels at the left side of the pyramid layers using Arial Bold font. The labels
# will have 3 lines showing the layer name, value and percentage.
c.setLeftLabel("{label}\nUS ${value}K\n({percent}%)", "arialbd.ttf")

# Output the chart
print("Content-type: image/png\n")
binaryPrint(c.makeChart2(PNG))