import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class compactline implements DemoModule
{
//Name of demo program
public String toString() { return "Compact Line 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)
{
//
// We use a random number generator to simulate the data from 9:30am to
// 4:30pm with one data point every 4 minutes. The total number of points
// during that period is 106. (7 hours x 15 points/hour + 1)
//
int noOfPoints = 106;
// Assume we have not reached the end of the day yet, and only 85 points are
// available. Create a random table object of 1 col x 85 rows, using 9 as
// seed.
RanTable rantable = new RanTable(9, 1, 85);
// Set the 1st column to start with 1800 and with random delta from -5 to 5.
rantable.setCol(0, 1800, -5, 5);
// Get the data as the 1st column of the random table
double[] data = rantable.getCol(0);
// The x-axis labels for the chart
String[] labels = {"-", "10am", "-", " ", "-", "12am", "-", " ", "-", "2pm",
"-", " ", "-", "4pm", "-"};
//
// Now we obtain the data into arrays, we can start to draw the chart
// using ChartDirector
//
// Create a XYChart object of size 180 x 180 pixels with a blue background
// (0x9c9cce)
XYChart c = new XYChart(180, 180, 0x9c9cce);
// Add titles to the top and bottom of the chart using 7.5pt Arial font. The
// text is white 0xffffff on a deep blue 0x31319C background.
c.addTitle2(Chart.Top, "STAR TECH INDEX 2003-01-28", "Arial", 7.5, 0xffffff,
0x31319c);
c.addTitle2(Chart.Bottom, "LATEST STI:1809.41 (+14.51)", "Arial", 7.5,
0xffffff, 0x31319c);
// Set the plotarea at (31, 21) and of size 145 x 124 pixels, with a pale
// yellow (0xffffc8) background.
c.setPlotArea(31, 21, 145, 124, 0xffffc8);
// Add custom text at (176, 21) (top right corner of plotarea) using 11pt
// Times Bold Italic font/red (0xc09090) color
c.addText(176, 21, "Chart Demo", "Times New Roman Bold Italic", 11, 0xc09090
).setAlignment(Chart.TopRight);
// Use 7.5 pts Arial as the y axis label font
c.yAxis().setLabelStyle("", 7.5);
// Set the labels on the x axis by spreading the labels evenly between the
// first point (index = 0) and the last point (index = noOfPoints - 1)
c.xAxis().setLinearScale(0, noOfPoints - 1, labels);
// Use 7.5 pts Arial as the x axis label font
c.xAxis().setLabelStyle("", 7.5);
// Add a deep blue (0x000080) line layer to the chart
c.addLineLayer(data, 0x000080);
// Output the chart
viewer.setChart(c);
// Include tool tip for the chart. The chart starts at 9:30am and each point
// spans 240 seconds, so we can compute the time as {x}*240+9.5*3600.
viewer.setImageMap(c.getHTMLImageMap("clickable", "",
"title='{={x}*240+9.5*3600|h:nna}: {value|2}'"));
}
//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 compactline();
//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);
}
} |