40 lines
1.3 KiB
PHP
40 lines
1.3 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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$value = 75.35;
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# Create an LinearMeter object of size 250 x 75 pixels, using silver background with
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# a 2 pixel black 3D depressed border.
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$m = new LinearMeter(250, 75, silverColor(), 0, -2);
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# Set the scale region top-left corner at (15, 25), with size of 200 x 50 pixels. The
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# scale labels are located on the top (implies horizontal meter)
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$m->setMeter(15, 25, 220, 20, Top);
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# Set meter scale from 0 - 100, with a tick every 10 units
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$m->setScale(0, 100, 10);
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# Set 0 - 50 as green (99ff99) zone, 50 - 80 as yellow (ffff66) zone, and 80 - 100 as
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# red (ffcccc) zone
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$m->addZone(0, 50, 0x99ff99);
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$m->addZone(50, 80, 0xffff66);
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$m->addZone(80, 100, 0xffcccc);
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# Add a blue (0000cc) pointer at the specified value
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$m->addPointer($value, 0x0000cc);
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# Add a label at bottom-left (10, 68) using Arial Bold/8 pts/red (c00000)
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$m->addText(10, 68, "Temperature C", "arialbd.ttf", 8, 0xc00000, BottomLeft);
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# Add a text box to show the value formatted to 2 decimal places at bottom right. Use
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# white text on black background with a 1 pixel depressed 3D border.
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$textBoxObj = $m->addText(238, 70, $m->formatValue($value, "2"), "arial.ttf", 8,
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0xffffff, BottomRight);
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$textBoxObj->setBackground(0, 0, -1);
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# output the chart
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header("Content-type: image/png");
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print($m->makeChart2(PNG));
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?>
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