ChartDirector 7.0 (PHP Edition)

Vertical Linear Meter




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

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

Source Code Listing

[File: phpdemo/vlinearmeter.php]
<?php require_once("../lib/phpchartdir.php"); # The value to display on the meter $value = 74.35; # 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 (0xcccccc) border $m = new LinearMeter(70, 240, 0xeeeeee, 0xcccccc); $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 smooth color scale to the meter $smoothColorScale = array(0, 0x6666ff, 25, 0x00bbbb, 50, 0x00ff00, 75, 0xffff00, 100, 0xff0000); $m->addColorScale($smoothColorScale); # Add a blue (0x0000cc) pointer at the specified value $m->addPointer($value, 0x0000cc); # Output the chart $viewer = new WebChartViewer("chart1"); $viewer->setChart($m, SVG); ?> <!DOCTYPE html> <html> <head> <title>Vertical Linear 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 Linear 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>