#!/usr/bin/python
from pychartdir import *

# The data for the chart
data0 = [6, 12.5, 18.2, 15]
angles0 = [45, 96, 169, 258]
size0 = [41, 105, 12, 20]

data1 = [18, 16, 11, 14]
angles1 = [30, 210, 240, 310]
size1 = [30, 45, 12, 90]

# Create a PolarChart object of size 460 x 460 pixels
c = PolarChart(460, 460)

# Add a title to the chart at the top left corner using 15pt Arial Bold Italic font
c.addTitle2(TopLeft, "<*underline=2*>EM Field Strength", "arialbi.ttf", 15)

# Set center of plot area at (230, 240) with radius 180 pixels
c.setPlotArea(230, 240, 180)

# Use alternative light grey/dark grey circular background color
c.setPlotAreaBg(0xdddddd, 0xeeeeee)

# Set the grid style to circular grid
c.setGridStyle(0)

# Add a legend box at the top right corner of the chart using 9pt Arial Bold font
c.addLegend(459, 0, 1, "arialbd.ttf", 9).setAlignment(TopRight)

# Set angular axis as 0 - 360, with a spoke every 30 units
c.angularAxis().setLinearScale(0, 360, 30)

# Set the radial axis label format
c.radialAxis().setLabelFormat("{value} km")

# Add a blue (0x9999ff) line layer to the chart using (data0, angle0)
layer0 = c.addLineLayer(data0, 0x9999ff, "Cold Spot")
layer0.setAngles(angles0)

# Disable the line by setting its width to 0, so only the symbols are visible
layer0.setLineWidth(0)

# Use a circular data point symbol
layer0.setDataSymbol(CircleSymbol, 11)

# Modulate the symbol size by size0 to produce a bubble chart effect
layer0.setSymbolScale(size0)

# Add a red (0xff9999) line layer to the chart using (data1, angle1)
layer1 = c.addLineLayer(data1, 0xff9999, "Hot Spot")
layer1.setAngles(angles1)

# Disable the line by setting its width to 0, so only the symbols are visible
layer1.setLineWidth(0)

# Use a circular data point symbol
layer1.setDataSymbol(CircleSymbol, 11)

# Modulate the symbol size by size1 to produce a bubble chart effect
layer1.setSymbolScale(size1)

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

