ChartDirector 7.0 (PHP Edition)

White Vertical Bar Meters


          

This example demonstrates vertical bar meters in a white coloring scheme, and with bars in various shading styles.

Source Code Listing

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

function createChart($viewer, $chartIndex)
{
    # The value to display on the meter
    $value = 74.25;

    # Create a LinearMeter object of size 70 x 260 pixels with very light grey (0xeeeeee) backgruond
    # and a grey (0xbbbbbb) 3-pixel thick rounded frame
    $m = new LinearMeter(70, 260, 0xeeeeee, 0xbbbbbb);
    $m->setRoundedFrame(Transparent);
    $m->setThickFrame(3);

    # Set the scale region top-left corner at (28, 33), with size of 20 x 194 pixels. The scale
    # labels are located on the left (default - implies vertical meter).
    $m->setMeter(28, 33, 20, 194);

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

    # Demostrate different types of color scales
    $smoothColorScale = array(0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000);
    $stepColorScale = array(0, 0x00dd00, 50, 0xffff00, 80, 0xff0000, 100);
    $highColorScale = array(70, Transparent, 100, 0xff0000);
    $lowColorScale = array(0, 0x0000ff, 30, Transparent);

    if ($chartIndex == 0) {
        # Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners
        $m->addBar(0, $value, 0x0088ff, glassEffect(NormalGlare, Left), 4);
        # Add a 6-pixel thick smooth color scale at x = 53 (right of meter scale)
        $m->addColorScale($smoothColorScale, 53, 6);
    } else if ($chartIndex == 1) {
         # Add a green (0x00cc00) bar from 0 to value with bar lighting effect and 4 pixel rounded
         # corners
        $m->addBar(0, $value, 0x00cc00, barLighting(), 4);
        # Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0
        # to 8
        $m->addColorScale($highColorScale, 52, 0, 52, 8);
        # Add a low only color scale at x = 52 (right of meter scale) with thickness varying from 8
        # to 0
        $m->addColorScale($lowColorScale, 52, 8, 52, 0);
    } else if ($chartIndex == 2) {
        # Add a purple (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners
        $m->addBar(0, $value, 0x8833dd, glassEffect(NormalGlare, Left), 4);
        # Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0
        # to 8
        $m->addColorScale($highColorScale, 52, 0, 52, 8);
    } else if ($chartIndex == 3) {
         # Add a orange (0xff8800) bar from 0 to value with cylinder lighting effect
        $m->addBar(0, $value, 0xff8800, cylinderEffect());
        # Add a high only color scale at x = 53 (right of meter scale)
        $m->addColorScale($highColorScale, 53, 6);
    } else if ($chartIndex == 4) {
        # Add a red (0xee3333) bar from 0 to value with glass effect and 4 pixel rounded corners
        $m->addBar(0, $value, 0xee3333, glassEffect(NormalGlare, Left), 4);
        # Add a step color scale at x = 53 (right of meter scale)
        $m->addColorScale($stepColorScale, 53, 6);
    } else {
         # Add a grey (0xaaaaaa) bar from 0 to value
        $m->addBar(0, $value, 0xaaaaaa);
        # Add a smooth color scale at x = 52 (right of meter scale) with thickness varying from 0 to
        # 8
        $m->addColorScale($smoothColorScale, 52, 0, 52, 8);
    }

    # Add a title using 8pt Arial Bold font with grey (0xbbbbbb) background
    $m->addTitle("Temp C", "Arial Bold", 8, TextColor)->setBackground(0xbbbbbb);

    # Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold
    # font on a black (0x000000) background with rounded border.
    $t = $m->addText($m->getWidth() / 2, $m->getHeight() - 8, $m->formatValue($value, "2"),
        "Arial Bold", 8, 0xffffff, Bottom);
    $t->setBackground(0x000000);
    $t->setRoundedCorners(3);
    $t->setMargin2(5, 5, 2, 1);

    # 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>White Vertical 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;">
        White Vertical 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>