Concentric Donut Chart

[File: phpdemo/concentric.php]
<?php
require_once("../lib/phpchartdir.php");

# 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 = 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
$t = $c->addText(260, 300, " Year 2006 ", "Arial Bold Italic", 12, 0xffffff);
$t->setBackground(0x008800, Transparent, 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(Transparent, Transparent);

# Set the pie data and the pie labels
$c->setData($data, $labels);

# Set the pie colors
$c->setColors2(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 = new PieChart(280, 320, 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, Center);
$t2->setBackground(0x0000cc, Transparent, softLighting());
$t2->setRoundedCorners(5);

# Set the pie data and the pie labels
$c2->setData($data2, $labels);

# Set the pie colors
$c2->setColors2(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, TopLeft, 0);

# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($c, 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.php?file=<?=basename(__FILE__)?>">View Chart Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <?php echo $viewer->renderHTML(); ?>
</body>
</html>