ChartDirector 7.0 (PHP Edition)

Vertical Bar Meter




This example demonstrates the basic steps in creating a vertical bar meter.

A vertical bar meter can be created using the following steps:

Source Code Listing

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

# The value to display on the meter
$value = 66.77;

# Create an LinearMeter object of size 70 x 240 pixels with a very light grey (0xeeeeee) background,
# and a rounded 3-pixel thick light grey (0xbbbbbb) border
$m = new LinearMeter(70, 240, 0xeeeeee, 0xbbbbbb);
$m->setRoundedFrame(Transparent);
$m->setThickFrame(3);

# Set the scale region top-left corner at (28, 18), with size of 20 x 205 pixels. The scale labels
# are located on the left (default - implies vertical meter).
$m->setMeter(28, 18, 20, 205);

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

# Add a 5-pixel thick smooth color scale to the meter at x = 54 (right of meter scale)
$smoothColorScale = array(0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xffff00, 100, 0xff0000);
$m->addColorScale($smoothColorScale, 54, 5);

# Add a light blue (0x0088ff) bar from 0 to the data value with glass effect and 4 pixel rounded
# corners
$m->addBar(0, $value, 0x0088ff, glassEffect(NormalGlare, Left), 4);

# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($m, SVG);
?>

<!DOCTYPE html>
<html>
<head>
    <title>Vertical Bar Meter</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;">
        Vertical Bar Meter
    </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>