ChartDirector 7.0 (PHP Edition)

Multi-Pie Chart


    

This example demonstrates drawing multiple pies with different data and colors. It also demonstrates putting labels on the sectors and using sector borders.

Source Code Listing

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

function createChart($viewer, $chartIndex)
{
    # The data for the pie chart
    $data0 = array(25, 18, 15);
    $data1 = array(14, 32, 24);
    $data2 = array(25, 23, 9);

    # The labels for the pie chart
    $labels = array("Software", "Hardware", "Services");

    # Create a PieChart object of size 180 x 160 pixels
    $c = new PieChart(180, 160);

    # Set the center of the pie at (90, 80) and the radius to 60 pixels
    $c->setPieSize(90, 80, 60);

    # Set the border color of the sectors to white (ffffff)
    $c->setLineColor(0xffffff);

    # Set the background color of the sector label to pale yellow (ffffc0) with a black border
    # (000000)
    $c->setLabelStyle()->setBackground(0xffffc0, 0x000000);

    # Set the label to be slightly inside the perimeter of the circle
    $c->setLabelLayout(CircleLayout, -10);

    # Set the title, data and colors according to which pie to draw
    if ($chartIndex == 0) {
        $c->addTitle("Alpha Division", "Arial Bold", 8);
        $c->setData($data0, $labels);
        $colors0 = array(0xff3333, 0xff9999, 0xffcccc);
        $c->setColors2(DataColor, $colors0);
    } else if ($chartIndex == 1) {
        $c->addTitle("Beta Division", "Arial Bold", 8);
        $c->setData($data1, $labels);
        $colors1 = array(0x33ff33, 0x99ff99, 0xccffcc);
        $c->setColors2(DataColor, $colors1);
    } else {
        $c->addTitle("Gamma Division", "Arial Bold", 8);
        $c->setData($data2, $labels);
        $colors2 = array(0x3333ff, 0x9999ff, 0xccccff);
        $c->setColors2(DataColor, $colors2);
    }

    # Output the chart
    $viewer->setChart($c, SVG);

    # Include tool tip for the chart
    $viewer->setImageMap($c->getHTMLImageMap("", "", "title='{label}: US\${value}M ({percent}%)'"));
}

# This example includes 3 charts
$viewers = array();
for ($i = 0; $i < 3; ++$i) {
    $viewers[$i] = new WebChartViewer("chart$i");
    createChart($viewers[$i], $i);
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Multi-Pie 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;">
        Multi-Pie 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 are the chart images ****** -->
    <?php
        for ($i = 0; $i < count($viewers); ++$i) {
            echo $viewers[$i]->renderHTML(), " ";
        }
    ?>
</body>
</html>