import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class polarvector implements DemoModule
{
//Name of demo program
public String toString() { return "Polar Vector 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)
{
// Coordinates of the starting points of the vectors
double[] radius = {5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10,
10, 10, 10, 10, 10, 10, 10, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
15, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 25, 25, 25, 25, 25,
25, 25, 25, 25, 25, 25, 25};
double[] angle = {0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0,
30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120,
150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210,
240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330
};
// Magnitude and direction of the vectors
double[] magnitude = {5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
double[] direction = {60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30,
60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150,
180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240,
270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0,
30};
// 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.addTitle("Polar Vector Chart Demonstration", "Arial Bold Italic", 15);
// Set center of plot area at (230, 240) with radius 180 pixels
c.setPlotArea(230, 240, 180);
// Set the grid style to circular grid
c.setGridStyle(false);
// Set angular axis as 0 - 360, with a spoke every 30 units
c.angularAxis().setLinearScale(0, 360, 30);
// Add a polar vector layer to the chart with blue (0000ff) vectors
c.addVectorLayer(radius, angle, magnitude, direction, Chart.RadialAxisScale,
0x0000ff);
// Output the chart
viewer.setChart(c);
//include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("clickable", "",
"title='Vector at ({value}, {angle} deg): Length = {len}, Angle = " +
"{dir} deg'"));
}
//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 polarvector();
//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);
}
} |