Concentric Donut Chart

[File: cfdemo/concentric.cfm]
<cfscript>

// ChartDirector for ColdFusion API Access Point
cd = CreateObject("java", "ChartDirector.CFChart");

// A utility to allow us to create arrays with data in one line of code
function Array() {
    var result = ArrayNew(1);
    var i = 0;
    for (i = 1; i LTE ArrayLen(arguments); i = i + 1)
        result[i] = arguments[i];
    return result;
}

// Data for outer ring
data = Array(88, 124, 96);

// Data for inner ring
data2 = Array(77, 87, 45);

// Labels for the sectors
labels = Array("Hardware", "Software", "Services");

// Colors for the sectors
colors = Array("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
c = cd.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
t = c.addText(260, 300, " Year 2006 ", "Arial Bold Italic", 12, "0xffffff");
t.setBackground("0x008800", cd.Transparent, cd.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(cd.Transparent, cd.Transparent);

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

// Set the pie colors
c.setColors2(cd.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
c2 = cd.PieChart(280, 320, cd.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
t2 = c2.addText(110, 110, " Year 2005 ", "Arial Bold Italic", 12, "0xffffff", cd.Center);
t2.setBackground("0x0000cc", cd.Transparent, cd.softLighting());
t2.setRoundedCorners(5);

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

// Set the pie colors
c2.setColors2(cd.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, cd.TopLeft, 0);

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

// include tool tip for the chart
imageMap1 = c2.getHTMLImageMap("", "", "title='{label} revenue for 2005: US${value}M ({percent}%)'",
    50, 90) & c.getHTMLImageMap("", "", "title='{label} revenue for 2006: US${value}M ({percent}%)'"
    );

</cfscript>
<html>
<body style="margin:5px 0px 0px 5px">
<div style="font-size:18pt; font-family:verdana; font-weight:bold">
    Concentric Donut Chart
</div>
<hr style="border:solid 1px #000080" />
<cfoutput>
<div style="font-size:9pt; font-family:verdana; margin-bottom:1.5em">
    <a href='viewsource.cfm?file=#CGI.SCRIPT_NAME#'>View Source Code</a>
</div>
<img src="getchart.cfm?#chart1URL#" usemap="##map1" border="0" />
<map name="map1">#imageMap1#</map>
</cfoutput>
</body>
</html>