ChartDirector 6.1 (Java Edition)

Multi-Depth Pie Chart




This example demonstrates a 3D pie chart where sectors have different 3D heights.

Instead of using PieChart.set3D to set a single 3D depth for all sectors, in this example, PieChart.set3D2 is used to set different depths for the sectors with an array of integers.

Source Code Listing

[JSP Version] jspdemo/multidepthpie.jsp
<%@page import="ChartDirector.*" %>
<%
// The data for the pie chart
double[] data = {72, 18, 15, 12};

// The labels for the pie chart
String[] labels = {"Labor", "Machinery", "Facilities", "Computers"};

// The depths for the sectors
double[] depths = {30, 20, 10, 10};

// Create a PieChart object of size 360 x 300 pixels, with a light blue (DDDDFF) background and a 1
// pixel 3D border
PieChart c = new PieChart(360, 300, 0xddddff, -1, 1);

// Set the center of the pie at (180, 175) and the radius to 100 pixels
c.setPieSize(180, 175, 100);

// Add a title box using 15pt Times Bold Italic font and blue (AAAAFF) as background color
c.addTitle("Project Cost Breakdown", "Times New Roman Bold Italic", 15).setBackground(0xaaaaff);

// Set the pie data and the pie labels
c.setData(data, labels);

// Draw the pie in 3D with variable 3D depths
c.set3D2(depths);

// Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in
// descending order, because it ensures the tallest sector is at the back.
c.setStartAngle(225);

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

// Include tool tip for the chart
String imageMap1 = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'");
%>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Multi-Depth Pie 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/multidepthpie.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;

public class multidepthpie implements DemoModule
{
    //Name of demo program
    public String toString() { return "Multi-Depth Pie 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 pie chart
        double[] data = {72, 18, 15, 12};

        // The labels for the pie chart
        String[] labels = {"Labor", "Machinery", "Facilities", "Computers"};

        // The depths for the sectors
        double[] depths = {30, 20, 10, 10};

        // Create a PieChart object of size 360 x 300 pixels, with a light blue (DDDDFF) background
        // and a 1 pixel 3D border
        PieChart c = new PieChart(360, 300, 0xddddff, -1, 1);

        // Set the center of the pie at (180, 175) and the radius to 100 pixels
        c.setPieSize(180, 175, 100);

        // Add a title box using 15pt Times Bold Italic font and blue (AAAAFF) as background color
        c.addTitle("Project Cost Breakdown", "Times New Roman Bold Italic", 15).setBackground(
            0xaaaaff);

        // Set the pie data and the pie labels
        c.setData(data, labels);

        // Draw the pie in 3D with variable 3D depths
        c.set3D2(depths);

        // Set the start angle to 225 degrees may improve layout when the depths of the sector are
        // sorted in descending order, because it ensures the tallest sector is at the back.
        c.setStartAngle(225);

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

        //include tool tip for the chart
        viewer.setImageMap(c.getHTMLImageMap("clickable", "",
            "title='{label}: US${value}K ({percent}%)'"));
    }

    //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 multidepthpie();

        //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);
    }
}