import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class contour implements DemoModule
{
//Name of demo program
public String toString() { return "Contour 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)
{
// The x and y coordinates of the grid
double[] dataX = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
;
double[] dataY = {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
;
// The values at the grid points. In this example, we will compute the values using the
// formula z = x * sin(y) + y * sin(x).
double[] dataZ = new double[dataX.length * dataY.length];
for (int yIndex = 0; yIndex < dataY.length; ++yIndex) {
double y = dataY[yIndex];
for (int xIndex = 0; xIndex < dataX.length; ++xIndex) {
double x = dataX[xIndex];
dataZ[yIndex * dataX.length + xIndex] = x * Math.sin(y) + y * Math.sin(x);
}
}
// Create a XYChart object of size 600 x 500 pixels
XYChart c = new XYChart(600, 500);
// Add a title to the chart using 15 points Arial Bold Italic font
c.addTitle("z = x * sin(y) + y * sin(x) ", "Arial Bold Italic", 15);
// Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black
// (80000000) dotted lines for both horizontal and vertical grid lines
c.setPlotArea(75, 40, 400, 400, -1, -1, -1, c.dashLineColor(0x80000000, Chart.DotLine), -1);
// Set x-axis and y-axis title using 12 points Arial Bold Italic font
c.xAxis().setTitle("X-Axis Title Place Holder", "Arial Bold Italic", 12);
c.yAxis().setTitle("Y-Axis Title Place Holder", "Arial Bold Italic", 12);
// Set x-axis and y-axis labels to use Arial Bold font
c.xAxis().setLabelStyle("Arial Bold");
c.yAxis().setLabelStyle("Arial Bold");
// When auto-scaling, use tick spacing of 40 pixels as a guideline
c.yAxis().setTickDensity(40);
c.xAxis().setTickDensity(40);
// Add a contour layer using the given data
ContourLayer layer = c.addContourLayer(dataX, dataY, dataZ);
// Move the grid lines in front of the contour layer
c.getPlotArea().moveGridBefore(layer);
// Add a color axis (the legend) in which the top left corner is anchored at (505, 40). Set
// the length to 400 pixels and the labels on the right side.
ColorAxis cAxis = layer.setColorAxis(505, 40, Chart.TopLeft, 400, Chart.Right);
// Add a title to the color axis using 12 points Arial Bold Italic font
cAxis.setTitle("Color Legend Title Place Holder", "Arial Bold Italic", 12);
// Set color axis labels to use Arial Bold font
cAxis.setLabelStyle("Arial Bold");
// 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 contour();
//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);
}
} |