Color Horizontal Bar Meters

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

function createChart($viewer, $chartIndex)
{
    # The value to display on the meter
    $value = 75.35;

    # The background, border and bar colors of the meters
    $bgColor = array(0xbbddff, 0xccffcc, 0xffddff, 0xffffaa, 0xffdddd, 0xeeeeee);
    $borderColor = array(0x000088, 0x006600, 0x880088, 0xee6600, 0x880000, 0x666666);
    $barColor = array(0x0088ff, 0x00cc00, 0x8833dd, 0xff8800, 0xee3333, 0x888888);

    # Create a LinearMeter object of size 260 x 80 pixels with a 3-pixel thick rounded frame
    $m = new LinearMeter(260, 80, $bgColor[$chartIndex], $borderColor[$chartIndex]);
    $m->setRoundedFrame(Transparent);
    $m->setThickFrame(3);

    # Set the scale region top-left corner at (18, 24), with size of 222 x 20 pixels. The scale
    # labels are located on the top (implies horizontal meter)
    $m->setMeter(18, 24, 222, 20, Top);

    # Set meter scale from 0 - 100, with a tick every 10 units
    $m->setScale(0, 100, 10);

    if ($chartIndex % 4 == 0) {
        # Add a 5-pixel thick smooth color scale at y = 48 (below the meter scale)
        $smoothColorScale = array(0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
            0xff0000);
        $m->addColorScale($smoothColorScale, 48, 5);
    } else if ($chartIndex % 4 == 1) {
        # Add a 5-pixel thick step color scale at y = 48 (below the meter scale)
        $stepColorScale = array(0, 0x00cc00, 50, 0xffdd00, 80, 0xff3333, 100);
        $m->addColorScale($stepColorScale, 48, 5);
    } else if ($chartIndex % 4 == 2) {
        # Add a 5-pixel thick high/low color scale at y = 48 (below the meter scale)
        $highLowColorScale = array(0, 0x0000ff, 40, Transparent, 60, Transparent, 100, 0xff0000);
        $m->addColorScale($highLowColorScale, 48, 5);
    } else {
        # Add a 5-pixel thick high only color scale at y = 48 (below the meter scale)
        $highColorScale = array(70, Transparent, 100, 0xff0000);
        $m->addColorScale($highColorScale, 48, 0, 48, 8);
    }

    # Add a bar from 0 to value with glass effect and 4 pixel rounded corners
    $m->addBar(0, $value, $barColor[$chartIndex], glassEffect(NormalGlare, Top), 4);

    # Add a label right aligned to (243, 65) using 8pt Arial Bold font
    $m->addText(243, 65, "Temperature C", "Arial Bold", 8, TextColor, Right);

    # Add a text box left aligned to (18, 65). Display the value using white (0xffffff) 8pt Arial
    # Bold font on a black (0x000000) background with depressed rounded border.
    $t = $m->addText(18, 65, $m->formatValue($value, "2"), "Arial", 8, 0xffffff, Left);
    $t->setBackground(0x000000, 0x000000, -1);
    $t->setRoundedCorners(3);

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

# This example includes 6 charts
$viewers = array();
for ($i = 0; $i < 6; ++$i) {
    $viewers[$i] = new WebChartViewer("chart$i");
    createChart($viewers[$i], $i);
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Color Horizontal Bar Meters</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;">
        Color Horizontal Bar Meters
    </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>