ChartDirector Ver 5.0 (PHP Edition)

Donut Width

This example demonstrates the effects of different donut widths.
Donut widths are configured by using different inner and outer radii when calling PieChart.setDonutSize.

Source Code Listing

[File: phpdemo/donutwidth.php]

    <?php
    require_once("../lib/phpchartdir.php");

    # Determine the donut inner radius (as percentage of outer radius) based on input
    # parameter
    $donutRadius = (int)($_REQUEST["img"]) * 25;

    # The data for the pie chart
    $data = array(10, 10, 10, 10, 10);

    # The labels for the pie chart
    $labels = array("Marble", "Wood", "Granite", "Plastic", "Metal");

    # Create a PieChart object of size 150 x 120 pixels, with a grey (EEEEEE) background,
    # black border and 1 pixel 3D border effect
    $c = new PieChart(150, 120, 0xeeeeee, 0x000000, 1);

    # Set donut center at (75, 65) and the outer radius to 50 pixels. Inner radius is
    # computed according donutWidth
    $c->setDonutSize(75, 60, 50, (int)(50 * $donutRadius / 100));

    # Add a title to show the donut width
    $textBoxObj = $c->addTitle("Inner Radius = $donutRadius %", "Arial", 10);
    $textBoxObj->setBackground(0xcccccc, 0);

    # Draw the pie in 3D
    $c->set3D(12);

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

    # Disable the sector labels by setting the color to Transparent
    $c->setLabelStyle("", 8, Transparent);

    # Output the chart
    header("Content-type: image/png");
    print($c->makeChart2(PNG));
    ?>

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