import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class polarbubble implements DemoModule
{
//Name of demo program
public String toString() { return "Polar Bubble Chart"; }
//Number of charts produced in this demo
public int getNoOfCharts() { return 1; }
//Main code for creating charts
public void createChart(ChartViewer viewer, int index)
{
// The data for the chart
double[] data0 = {6, 12.5, 18.2, 15};
double[] angles0 = {45, 96, 169, 258};
double[] size0 = {41, 105, 12, 20};
double[] data1 = {18, 16, 11, 14};
double[] angles1 = {30, 210, 240, 310};
double[] size1 = {30, 45, 12, 90};
// Create a PolarChart object of size 460 x 460 pixels
PolarChart c = new PolarChart(460, 460);
// Add a title to the chart at the top left corner using 15pts Arial Bold
// Italic font
c.addTitle2(Chart.TopLeft, "<*underline=2*>EM Field Strength",
"Arial Bold Italic", 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(false);
// Add a legend box at the top right corner of the chart using 9 pts Arial
// Bold font
c.addLegend(459, 0, true, "Arial Bold", 9).setAlignment(Chart.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)
PolarLineLayer 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(Chart.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)
PolarLineLayer 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(Chart.CircleSymbol, 11);
// Modulate the symbol size by size1 to produce a bubble chart effect
layer1.setSymbolScale(size1);
// Output the chart
viewer.setChart(c);
//include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("clickable", "",
"title='{dataSetName} at ({value} km, {angle} deg) Strength = {z} Watt'")
);
}
//Allow this module to run as standalone program for easy testing
public static void main(String[] args)
{
//Instantiate an instance of this demo module
DemoModule demo = new polarbubble();
//Create and set up the main window
JFrame frame = new JFrame(demo.toString());
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);} });
frame.getContentPane().setBackground(Color.white);
// Create the chart and put them in the content pane
ChartViewer viewer = new ChartViewer();
demo.createChart(viewer, 0);
frame.getContentPane().add(viewer);
// Display the window
frame.pack();
frame.setVisible(true);
}
} |