47 lines
1.5 KiB
PHP
47 lines
1.5 KiB
PHP
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<?php
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require_once("../lib/phpchartdir.php");
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# The value to display on the meter
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$value = 27.48;
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# Create an AngularMeter object of size 200 x 115 pixels, with silver background
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# color, black border, 2 pixel 3D border border and rounded corners
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$m = new AngularMeter(200, 115, silverColor(), 0x000000, 2);
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$m->setRoundedFrame();
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# Set the meter center at (100, 100), with radius 85 pixels, and span from -90 to +90
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# degress (semi-circle)
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$m->setMeter(100, 100, 85, -90, 90);
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# Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units,
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# and micro tick every 5 units
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$m->setScale(0, 100, 20, 10, 5);
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# Set 0 - 60 as green (66FF66) zone
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$m->addZone(0, 60, 0, 85, 0x66ff66);
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# Set 60 - 80 as yellow (FFFF33) zone
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$m->addZone(60, 80, 0, 85, 0xffff33);
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# Set 80 - 100 as red (FF6666) zone
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$m->addZone(80, 100, 0, 85, 0xff6666);
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# Add a text label centered at (100, 60) with 12 pts Arial Bold font
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$m->addText(100, 60, "PSI", "arialbd.ttf", 12, TextColor, Center);
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# Add a text box at the top right corner of the meter showing the value formatted to
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# 2 decimal places, using white text on a black background, and with 1 pixel 3D
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# depressed border
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$textBoxObj = $m->addText(156, 8, $m->formatValue($value, "2"), "arial.ttf", 8,
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0xffffff);
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$textBoxObj->setBackground(0x000000, 0, -1);
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# Add a semi-transparent blue (40666699) pointer with black border at the specified
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# value
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$m->addPointer($value, 0x40666699, 0x000000);
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# output the chart
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header("Content-type: image/png");
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print($m->makeChart2(PNG));
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?>
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