44 lines
1.5 KiB
PHP
44 lines
1.5 KiB
PHP
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<?php
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require_once("../lib/phpchartdir.php");
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# Data for the chart
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$data = array(9.4, 1.8, 2.1, 2.3, 3.5, 7.7, 8.8, 6.1, 5.0, 3.1, 6.0, 4.3, 5.1, 2.6,
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1.5, 2.2, 5.1, 4.3, 4.0, 9.0, 1.7, 8.8, 9.9, 9.5);
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$angles = array(0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210,
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225, 240, 255, 270, 285, 300, 315, 330, 345);
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# Create a PolarChart object of size 460 x 460 pixels, with a silver background and a
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# 1 pixel 3D border
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$c = new PolarChart(460, 460, silverColor(), 0x000000, 1);
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# Add a title to the chart at the top left corner using 15pts Arial Bold Italic font.
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# Use white text on deep blue background.
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$textBoxObj = $c->addTitle("Polar Vector Chart Demonstration", "arialbi.ttf", 15,
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0xffffff);
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$textBoxObj->setBackground(0x000080);
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# Set plot area center at (230, 240) with radius 180 pixels and white background
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$c->setPlotArea(230, 240, 180, 0xffffff);
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# Set the grid style to circular grid
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$c->setGridStyle(false);
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# Set angular axis as 0 - 360, with a spoke every 30 units
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->setLinearScale(0, 360, 30);
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# Add sectors to the chart as sector zones
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for($i = 0; $i < count($data); ++$i) {
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->addZone($angles[$i], $angles[$i] + 15, 0, $data[$i], 0x33ff33,
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0x008000);
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}
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# Add an Transparent invisible layer to ensure the axis is auto-scaled using the data
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$c->addLineLayer($data, Transparent);
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# output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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