42 lines
1.3 KiB
PHP
42 lines
1.3 KiB
PHP
<?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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$value = 85;
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# Create an LinearMeter object of size 210 x 45 pixels, using silver background with
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# a 2 pixel black 3D depressed border.
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$m = new LinearMeter(210, 45, silverColor(), 0, -2);
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# Set the scale region top-left corner at (5, 5), with size of 200 x 20 pixels. The
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# scale labels are located on the bottom (implies horizontal meter)
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$m->setMeter(5, 5, 200, 20, Bottom);
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# Set meter scale from 0 - 100
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$m->setScale(0, 100);
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# Add a title at the bottom of the meter with a 1 pixel raised 3D border
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$textBoxObj = $m->addTitle2(Bottom, "Battery Level", "arialbd.ttf", 8);
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$textBoxObj->setBackground(Transparent, -1, 1);
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# Set 3 zones of different colors to represent Good/Weak/Bad data ranges
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$m->addZone(50, 100, 0x99ff99, "Good");
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$m->addZone(20, 50, 0xffff66, "Weak");
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$m->addZone(0, 20, 0xffcccc, "Bad");
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# Add empty labels (just need the ticks) at 0/20/50/80 as separators for zones
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$m->addLabel(0, " ");
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$m->addLabel(20, " ");
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$m->addLabel(50, " ");
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$m->addLabel(100, " ");
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# Add a semi-transparent blue (800000ff) pointer at the specified value, using
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# triangular pointer shape
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$pointerObj = $m->addPointer($value, 0x800000ff);
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$pointerObj->setShape(TriangularPointer);
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# output the chart
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header("Content-type: image/png");
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print($m->makeChart2(PNG));
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?>
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