ChartDirector 6.1 (Java Edition)

3D Donut Chart




This example demonstrates a 3D donut chart with sector gradient shading. It also demonstrates gradient color background, rounded frame, custom sector colors, and using CDML and Parameter Substitution and Formatting to format sector labels

Source Code Listing

[JSP Version] jspdemo/threeddonut.jsp
<%@page import="ChartDirector.*" %>
<%
// The data for the pie chart
double[] data = {20, 10, 15, 12};

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

// The colors to use for the sectors
int[] colors = {0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};

// Create a PieChart object of size 600 x 320 pixels. Use a vertical gradient color from deep blue
// (000066) to blue (0000cc) as background. Use rounded corners of 20 pixels radius.
PieChart c = new PieChart(600, 320);
c.setBackground(c.linearGradientColor(0, 0, 0, c.getHeight(), 0x000066, 0x0000cc));
c.setRoundedFrame(0xffffff, 20);

// Add a title using 18pt Times New Roman Bold Italic font in white (ffffff) color. Set top/bottom
// margins to 8 pixels.
TextBox title = c.addTitle("Donut Chart Demonstration", "Times New Roman Bold Italic", 18, 0xffffff)
    ;
title.setMargin2(0, 0, 8, 8);

// Add a separator line in white color just under the title
c.addLine(10, title.getHeight(), c.getWidth() - 11, title.getHeight(), 0xffffff);

// Set donut center at (300, 170), and outer/inner radii as 120/60 pixels
c.setDonutSize(300, 170, 120, 60);

// Draw the pie in 3D with a pie thickness of 25 pixels
c.set3D(25);

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

// Set the sector colors
c.setColors2(Chart.DataColor, colors);

// Use local gradient shading for the sectors
c.setSectorStyle(Chart.LocalGradientShading);

// Set sector border color to same as fill color. Set label join line color to white (ffffff)
c.setLineColor(Chart.SameAsMainColor, 0xffffff);

// Use the side label layout method, with the labels positioned 16 pixels from the donut bounding
// box
c.setLabelLayout(Chart.SideLayout, 16);

// Set the sector label format. The label consists of two lines. The first line is the sector name
// in Times Bold Italic font and is underlined. The second line shows the data value and percentage.
c.setLabelFormat(
    "<*block,halign=left*><*font=Times New Roman Bold Italic,size=12,underline=1*>{label}" +
    "<*/font*><*br*>US$ {value}K ({percent}%)");

// Set the label box background color the same as the sector color. Use soft lighting effect with
// light direction from right. Use rounded corners.
TextBox t = c.setLabelStyle();
t.setBackground(Chart.SameAsMainColor, Chart.Transparent, Chart.softLighting(Chart.Right));
t.setRoundedCorners();

// 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">
    3D Donut 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/threeddonut.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;

public class threeddonut implements DemoModule
{
    //Name of demo program
    public String toString() { return "3D Donut 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 = {20, 10, 15, 12};

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

        // The colors to use for the sectors
        int[] colors = {0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};

        // Create a PieChart object of size 600 x 320 pixels. Use a vertical gradient color from
        // deep blue (000066) to blue (0000cc) as background. Use rounded corners of 20 pixels
        // radius.
        PieChart c = new PieChart(600, 320);
        c.setBackground(c.linearGradientColor(0, 0, 0, c.getHeight(), 0x000066, 0x0000cc));
        c.setRoundedFrame(0xffffff, 20);

        // Add a title using 18pt Times New Roman Bold Italic font in white (ffffff) color. Set
        // top/bottom margins to 8 pixels.
        TextBox title = c.addTitle("Donut Chart Demonstration", "Times New Roman Bold Italic", 18,
            0xffffff);
        title.setMargin2(0, 0, 8, 8);

        // Add a separator line in white color just under the title
        c.addLine(10, title.getHeight(), c.getWidth() - 11, title.getHeight(), 0xffffff);

        // Set donut center at (300, 170), and outer/inner radii as 120/60 pixels
        c.setDonutSize(300, 170, 120, 60);

        // Draw the pie in 3D with a pie thickness of 25 pixels
        c.set3D(25);

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

        // Set the sector colors
        c.setColors2(Chart.DataColor, colors);

        // Use local gradient shading for the sectors
        c.setSectorStyle(Chart.LocalGradientShading);

        // Set sector border color to same as fill color. Set label join line color to white
        // (ffffff)
        c.setLineColor(Chart.SameAsMainColor, 0xffffff);

        // Use the side label layout method, with the labels positioned 16 pixels from the donut
        // bounding box
        c.setLabelLayout(Chart.SideLayout, 16);

        // Set the sector label format. The label consists of two lines. The first line is the
        // sector name in Times Bold Italic font and is underlined. The second line shows the data
        // value and percentage.
        c.setLabelFormat(
            "<*block,halign=left*><*font=Times New Roman Bold Italic,size=12,underline=1*>" +
            "{label}<*/font*><*br*>US$ {value}K ({percent}%)");

        // Set the label box background color the same as the sector color. Use soft lighting effect
        // with light direction from right. Use rounded corners.
        TextBox t = c.setLabelStyle();
        t.setBackground(Chart.SameAsMainColor, Chart.Transparent, Chart.softLighting(Chart.Right));
        t.setRoundedCorners();

        // 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 threeddonut();

        //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);
    }
}