Concentric Donut Chart

[JSP Version] jspdemo/concentric.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%
// Data for outer ring
double[] data = {88, 124, 96};

// Data for inner ring
double[] data2 = {77, 87, 45};

// Labels for the sectors
String[] labels = {"Hardware", "Software", "Services"};

// Colors for the sectors
int[] colors = {0xff9999, 0x9999ff, 0x66ff66};

//
// Create the main chart, which contains the chart title, the outer ring, and the legend box
//

// Create a PieChart object of size 450 x 360 pixels, with transparent background
PieChart c = new PieChart(450, 360);

// Add a title to the chart with 18pt Times Bold Italic font
c.addTitle("Concentric Donut Chart", "Times New Roman Bold Italic", 18);

// Set donut center at (160, 200), and outer/inner radii as 150/100 pixels
c.setDonutSize(160, 200, 150, 100);

// Add a label at the bottom-right corner of the ring to label the outer ring Use 12pt Arial Bold
// Italic font in white (ffffff) color, on a green (008800) background, with soft lighting effect
// and 5 pixels rounded corners
TextBox t = c.addText(260, 300, " Year 2006 ", "Arial Bold Italic", 12, 0xffffff);
t.setBackground(0x008800, Chart.Transparent, Chart.softLighting());
t.setRoundedCorners(5);

// Set the legend box at (320, 50) with 12pt Arial Bold Italic font, with no border
c.addLegend(320, 50, true, "Arial Bold Italic", 13).setBackground(Chart.Transparent,
    Chart.Transparent);

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

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

// Set pie border color to white (ffffff)
c.setLineColor(0xffffff);

// Set pie label to value in $###M format, percentage in (##.#%) format, in two lines.
c.setLabelFormat("${value}M<*br*>({percent|1}%)");

// Use 10pt Airal Bold for the sector labels
c.setLabelStyle("Arial Bold", 10);

// Set the label position to -25 pixels from the sector (which would be internal to the sector)
c.setLabelPos(-25);

//
// Create the inner ring.
//

// Create a PieChart object of size 280 x 320 pixels, with transparent background
PieChart c2 = new PieChart(280, 320, Chart.Transparent);

// Set donut center at (110, 110), and outer/inner radii as 100/50 pixels
c2.setDonutSize(110, 110, 100, 50);

// Add a label at the center of the ring to label the inner ring. Use 12pt Arial Bold Italic font in
// white (ffffff) color, on a deep blue (0000cc) background, with soft lighting effect and 5 pixels
// rounded corners
TextBox t2 = c2.addText(110, 110, " Year 2005 ", "Arial Bold Italic", 12, 0xffffff, Chart.Center);
t2.setBackground(0x0000cc, Chart.Transparent, Chart.softLighting());
t2.setRoundedCorners(5);

// Set the pie data and the pie labels
c2.setData(data2, labels);

// Set the pie colors
c2.setColors2(Chart.DataColor, colors);

// Set pie border color to white (ffffff)
c2.setLineColor(0xffffff);

// Set pie label to value in $###M format, percentage in (##.#%) format, in two lines.
c2.setLabelFormat("${value}M<*br*>({percent|1}%)");

// Use 10pt Airal Bold for the sector labels
c2.setLabelStyle("Arial Bold", 10);

// Set the label position to -25 pixels from the sector (which would be internal to the sector)
c2.setLabelPos(-25);

// merge the inner ring into the outer ring at (50, 90)
c.makeChart3().merge(c2.makeChart3(), 50, 90, Chart.TopLeft, 0);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// include tool tip for the chart
viewer.setImageMap(c2.getHTMLImageMap("", "",
    "title='{label} revenue for 2005: US${value}M ({percent}%)'", 50, 90) + c.getHTMLImageMap("",
    "", "title='{label} revenue for 2006: US${value}M ({percent}%)'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Concentric Donut Chart</title>
    <!-- Include ChartDirector Javascript Library to support chart interactions -->
    <script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        Concentric Donut Chart
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <%= viewer.renderHTML(response) %>
</body>
</html>