colorsemicirclemeter.php
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<?php
require_once("../lib/phpchartdir.php");
function createChart($viewer, $chartIndex)
{
# The value to display on the meter
$value = 72.55;
# The background and border colors of the meters
$bgColor = array(0x88ccff, 0xffdddd, 0xffddaa, 0xffccff, 0xdddddd, 0xccffcc);
$borderColor = array(0x000077, 0x880000, 0xee6600, 0x440088, 0x000000, 0x006000);
# Create an AngularMeter object of size 300 x 180 pixels with transparent background
$m = new AngularMeter(300, 180, Transparent);
# Center at (150, 150), scale radius = 124 pixels, scale angle -90 to +90 degrees
$m->setMeter(150, 150, 124, -90, 90);
# Background gradient color with brighter color at the center
$bgGradient = array(0, $m->adjustBrightness($bgColor[$chartIndex], 3), 0.75, $bgColor[
$chartIndex]);
# Add a scale background of 148 pixels radius using the background gradient, with a 13 pixel
# thick border
$m->addScaleBackground(148, $m->relativeRadialGradient($bgGradient), 13, $borderColor[
$chartIndex]);
# Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and micro
# tick every 5 units
$m->setScale(0, 100, 20, 10, 5);
# Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to
# 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels.
$m->setLabelStyle("Arial Italic", 16);
$m->setTickLength(-16, -16, -10);
$m->setLineWidth(0, 2, 1, 1);
# Demostrate different types of color scales and putting them at different positions
$smoothColorScale = array(0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000);
$stepColorScale = array(0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100);
$highLowColorScale = array(0, 0x00ff00, 70, Transparent, 100, 0xff0000);
if ($chartIndex == 0) {
# Add the smooth color scale at the default position
$m->addColorScale($smoothColorScale);
} else if ($chartIndex == 1) {
# Add the smooth color scale starting at radius 124 with zero width and ending at radius 124
# with 16 pixels inner width
$m->addColorScale($smoothColorScale, 124, 0, 124, -16);
} else if ($chartIndex == 2) {
# Add the smooth color scale starting at radius 65 with zero width and ending at radius 55
# with 20 pixels outer width
$m->addColorScale($smoothColorScale, 65, 0, 55, 20);
} else if ($chartIndex == 3) {
# Add the high/low color scale at the default position
$m->addColorScale($highLowColorScale);
} else if ($chartIndex == 4) {
# Add the step color scale at the default position
$m->addColorScale($stepColorScale);
} else {
# Add the smooth color scale at radius 55 with 20 pixels outer width
$m->addColorScale($smoothColorScale, 55, 20);
}
# Add a text label centered at (150, 125) with 15pt Arial Italic font
$m->addText(150, 125, "CPU", "Arial Italic", 15, TextColor, BottomCenter);
# Demonstrate two different types of pointers - thin triangular pointer (the default) and line
# pointer
if ($chartIndex % 2 == 0) {
$m->addPointer2($value, 0xff0000);
} else {
$m->addPointer2($value, 0xff0000, -1, LinePointer2);
}
# 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], $i);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Color Semicircle Meters</title>
<!-- Include ChartDirector Javascript Library to support chart interactions -->
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
<div style="font:bold 18pt verdana;">
Color Semicircle Meters
</div>
<hr style="border:solid 1px #000080; background:#000080" />
<div style="font:10pt verdana; margin-bottom:1.5em">
<a href="viewsource.php?file=<?=basename(__FILE__)?>">View Chart Source Code</a>
</div>
<!-- ****** Here are the chart images ****** -->
<?php
for ($i = 0; $i < count($viewers); ++$i) {
echo $viewers[$i]->renderHTML(), " ";
}
?>
</body>
</html>
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