import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class confidenceband implements DemoModule
{
//Name of demo program
public String toString() { return "Confidence Band"; }
//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 XY data of the first data series
double[] dataX = {50, 55, 37, 24, 42, 49, 63, 72, 83, 59};
double[] dataY = {3.6, 2.8, 2.5, 2.3, 3.8, 3.0, 3.8, 5.0, 6.0, 3.3};
// Create a XYChart object of size 450 x 420 pixels
XYChart c = new XYChart(450, 420);
// Set the plotarea at (55, 65) and of size 350 x 300 pixels, with white background and a
// light grey border (0xc0c0c0). Turn on both horizontal and vertical grid lines with light
// grey color (0xc0c0c0)
c.setPlotArea(55, 65, 350, 300, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);
// Add a title to the chart using 18 point Times Bold Itatic font.
c.addTitle("Server Performance", "Times New Roman Bold Italic", 18);
// Add titles to the axes using 12pt Arial Bold Italic font
c.yAxis().setTitle("Response Time (sec)", "Arial Bold Italic", 12);
c.xAxis().setTitle("Server Load (TPS)", "Arial Bold Italic", 12);
// Set the axes line width to 3 pixels
c.yAxis().setWidth(3);
c.xAxis().setWidth(3);
// Add a scatter layer using (dataX, dataY)
ScatterLayer scatterLayer = c.addScatterLayer(dataX, dataY, "", Chart.DiamondSymbol, 11,
0x008000);
// tool tip for scatter layer
scatterLayer.setHTMLImageMap("", "", "title='Response time at {x} TPS: {value} sec'");
// Add a trend line layer for (dataX, dataY)
TrendLayer trendLayer = c.addTrendLayer2(dataX, dataY, 0x008000);
// Set the line width to 3 pixels
trendLayer.setLineWidth(3);
// Add a 95% confidence band for the line
trendLayer.addConfidenceBand(0.95, 0x806666ff);
// Add a 95% confidence band (prediction band) for the points
trendLayer.addPredictionBand(0.95, 0x8066ff66);
// tool tip for trend layer
trendLayer.setHTMLImageMap("", "",
"title='Slope = {slope|4} sec/TPS; Intercept = {intercept|4} sec'");
// Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 10pt Arial
// Bold Italic font. Set the background and border color to Transparent.
LegendBox legendBox = c.addLegend(50, 30, false, "Arial Bold Italic", 10);
legendBox.setBackground(Chart.Transparent);
// Add entries to the legend box
legendBox.addKey("95% Line Confidence", 0x806666ff);
legendBox.addKey("95% Point Confidence", 0x8066ff66);
// Display the trend line parameters as a text table formatted using CDML
TextBox textbox = c.addText(56, 65, java.text.MessageFormat.format(
"<*block*>Slope\nIntercept\nCorrelation\nStd Error<*/*> <*block*>{0,number,#.####} " +
"sec/tps\n{1,number,#.####} sec\n{2,number,#.####}\n{3,number,#.####} sec<*/*>",
new Object[]{new Double(trendLayer.getSlope()), new Double(trendLayer.getIntercept()),
new Double(trendLayer.getCorrelation()), new Double(trendLayer.getStdError())}),
"Arial Bold", 8);
// Set the background of the text box to light grey, with a black border, and 1 pixel 3D
// border
textbox.setBackground(0xc0c0c0, 0, 1);
// Output the chart
viewer.setChart(c);
// include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("clickable"));
}
//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 confidenceband();
//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);
}
} |