ChartDirector 6.1 (Java Edition)

Stacked Radar Chart




This example demonstrates a stacked radar chart.

This example is similar to the previous Multi-Radar Chart example, except the data are stacked before passing to ChartDirector.

Source Code Listing

[JSP Version] jspdemo/stackradar.jsp
<%@page import="ChartDirector.*" %>
<%
// The data for the chart
double[] data0 = {100, 100, 100, 100, 100};
double[] data1 = {90, 85, 85, 80, 70};
double[] data2 = {80, 65, 65, 75, 45};

// The labels for the chart
String[] labels = {"Population<*br*><*font=Arial*>6 millions",
    "GDP<*br*><*font=Arial*>120 billions", "Export<*br*><*font=Arial*>25 billions",
    "Import<*br*><*font=Arial*>24 billions", "Investments<*br*><*font=Arial*>20 billions"};

// Create a PolarChart object of size 480 x 460 pixels. Set background color to silver, with 1 pixel
// 3D border effect
PolarChart c = new PolarChart(480, 460, Chart.silverColor(), 0x000000, 1);

// Add a title to the chart using 15pt Times Bold Italic font. The title text is white (ffffff) on a
// deep green (008000) background
c.addTitle("Economic Growth", "Times New Roman Bold Italic", 15, 0xffffff).setBackground(0x008000);

// Set plot area center at (240, 270), with 150 pixels radius
c.setPlotArea(240, 270, 150);

// Use 1 pixel width semi-transparent black (c0000000) lines as grid lines
c.setGridColor(0xc0000000, 1, 0xc0000000, 1);

// Add a legend box at top-center of plot area (240, 35) using horizontal layout. Use 10pt Arial
// Bold font, with silver background and 1 pixel 3D border effect.
LegendBox b = c.addLegend(240, 35, false, "Arial Bold", 10);
b.setAlignment(Chart.TopCenter);
b.setBackground(Chart.silverColor(), Chart.Transparent, 1);

// Add area layers of different colors to represent the data
c.addAreaLayer(data0, 0xcc8880, "Year 2004");
c.addAreaLayer(data1, 0xffd080, "Year 1994");
c.addAreaLayer(data2, 0xa0bce0, "Year 1984");

// Set the labels to the angular axis as spokes.
c.angularAxis().setLabels(labels);

// Set radial axis from 0 - 100 with a tick every 20 units
c.radialAxis().setLinearScale(0, 100, 20);

// Just show the radial axis as a grid line. Hide the axis labels by setting the label color to
// Transparent
c.radialAxis().setColors(0xc0000000, Chart.Transparent);

// Output the chart
String chart1URL = c.makeSession(request, "chart1");

// Include tool tip for the chart
String imageMap1 = c.getHTMLImageMap("", "", "title='Current {label}: {value}% in {dataSetName}'");
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Stacked Radar Chart
</div>
<hr color="#000080">
<div style="font-size:10pt; font-family:verdana; margin-bottom:1.5em">
    <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
</div>
<img src='<%=response.encodeURL("getchart.jsp?"+chart1URL)%>'
    usemap="#map1" border="0">
<map name="map1"><%=imageMap1%></map>
</body>
</html>

[Java Version] javademo/stackradar.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;

public class stackradar implements DemoModule
{
    //Name of demo program
    public String toString() { return "Stacked Radar 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 data for the chart
        double[] data0 = {100, 100, 100, 100, 100};
        double[] data1 = {90, 85, 85, 80, 70};
        double[] data2 = {80, 65, 65, 75, 45};

        // The labels for the chart
        String[] labels = {"Population<*br*><*font=Arial*>6 millions",
            "GDP<*br*><*font=Arial*>120 billions", "Export<*br*><*font=Arial*>25 billions",
            "Import<*br*><*font=Arial*>24 billions", "Investments<*br*><*font=Arial*>20 billions"};

        // Create a PolarChart object of size 480 x 460 pixels. Set background color to silver, with
        // 1 pixel 3D border effect
        PolarChart c = new PolarChart(480, 460, Chart.silverColor(), 0x000000, 1);

        // Add a title to the chart using 15pt Times Bold Italic font. The title text is white
        // (ffffff) on a deep green (008000) background
        c.addTitle("Economic Growth", "Times New Roman Bold Italic", 15, 0xffffff).setBackground(
            0x008000);

        // Set plot area center at (240, 270), with 150 pixels radius
        c.setPlotArea(240, 270, 150);

        // Use 1 pixel width semi-transparent black (c0000000) lines as grid lines
        c.setGridColor(0xc0000000, 1, 0xc0000000, 1);

        // Add a legend box at top-center of plot area (240, 35) using horizontal layout. Use 10pt
        // Arial Bold font, with silver background and 1 pixel 3D border effect.
        LegendBox b = c.addLegend(240, 35, false, "Arial Bold", 10);
        b.setAlignment(Chart.TopCenter);
        b.setBackground(Chart.silverColor(), Chart.Transparent, 1);

        // Add area layers of different colors to represent the data
        c.addAreaLayer(data0, 0xcc8880, "Year 2004");
        c.addAreaLayer(data1, 0xffd080, "Year 1994");
        c.addAreaLayer(data2, 0xa0bce0, "Year 1984");

        // Set the labels to the angular axis as spokes.
        c.angularAxis().setLabels(labels);

        // Set radial axis from 0 - 100 with a tick every 20 units
        c.radialAxis().setLinearScale(0, 100, 20);

        // Just show the radial axis as a grid line. Hide the axis labels by setting the label color
        // to Transparent
        c.radialAxis().setColors(0xc0000000, Chart.Transparent);

        // Output the chart
        viewer.setChart(c);

        //include tool tip for the chart
        viewer.setImageMap(c.getHTMLImageMap("clickable", "",
            "title='Current {label}: {value}% in {dataSetName}'"));
    }

    //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 stackradar();

        //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);
    }
}