import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class stackrose implements DemoModule
{
//Name of demo program
public String toString() { return "Stacked Rose Chart"; }
//Number of charts produced in this demo
public int getNoOfCharts() { return 1; }
//Main code for creating charts
public void createChart(ChartViewer viewer, int chartIndex)
{
// Data for the chart
double[] data0 = {5, 3, 10, 4, 3, 5, 2, 5};
double[] data1 = {12, 6, 17, 6, 7, 9, 4, 7};
double[] data2 = {17, 7, 22, 7, 18, 13, 5, 11};
double[] angles = {0, 45, 90, 135, 180, 225, 270, 315};
String[] labels = {"North", "North\nEast", "East", "South\nEast", "South", "South\nWest",
"West", "North\nWest"};
// Create a PolarChart object of size 460 x 500 pixels, with a grey (e0e0e0) background and
// a 1 pixel 3D border
PolarChart c = new PolarChart(460, 500, 0xe0e0e0, 0x000000, 1);
// Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use
// white text on deep blue background.
c.addTitle("Wind Direction", "Arial Bold Italic", 15, 0xffffff).setBackground(0x000080);
LegendBox legendBox = c.addLegend(230, 35, false, "Arial Bold", 9);
legendBox.setAlignment(Chart.TopCenter);
legendBox.setBackground(Chart.Transparent, Chart.Transparent, 1);
legendBox.addKey("5 m/s or above", 0xff3333);
legendBox.addKey("1 - 5 m/s", 0x33ff33);
legendBox.addKey("less than 1 m/s", 0x3333ff);
// Set plot area center at (230, 280) with radius 180 pixels and white background
c.setPlotArea(230, 280, 180, 0xffffff);
// Set the grid style to circular grid
c.setGridStyle(false);
// Set angular axis as 0 - 360, with a spoke every 30 units
c.angularAxis().setLinearScale2(0, 360, labels);
for (int i = 0; i < angles.length; ++i) {
c.angularAxis().addZone(angles[i] - 10, angles[i] + 10, 0, data0[i], 0x3333ff, 0);
c.angularAxis().addZone(angles[i] - 10, angles[i] + 10, data0[i], data1[i], 0x33ff33, 0)
;
c.angularAxis().addZone(angles[i] - 10, angles[i] + 10, data1[i], data2[i], 0xff3333, 0)
;
}
// Add an Transparent invisible layer to ensure the axis is auto-scaled using the data
c.addLineLayer(data2, Chart.Transparent);
// Output the chart
viewer.setChart(c);
}
//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 stackrose();
//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);
}
} |