46 lines
2.0 KiB
PHP
46 lines
2.0 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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# Coordinates of the starting points of the vectors
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$radius = array(5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10,
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10, 10, 10, 10, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 20, 20, 20, 20,
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20, 20, 20, 20, 20, 20, 20, 20, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25);
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$angle = array(0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90,
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120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240,
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270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60,
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90, 120, 150, 180, 210, 240, 270, 300, 330);
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# Magnitude and direction of the vectors
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$magnitude = array(5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
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$direction = array(60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90,
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120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240,
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270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60,
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90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30);
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# Create a PolarChart object of size 460 x 460 pixels
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$c = new PolarChart(460, 460);
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# Add a title to the chart at the top left corner using 15pts Arial Bold Italic font
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$c->addTitle("Polar Vector Chart Demonstration", "arialbi.ttf", 15);
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# Set center of plot area at (230, 240) with radius 180 pixels
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$c->setPlotArea(230, 240, 180);
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# Set the grid style to circular grid
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$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 a polar vector layer to the chart with blue (0000ff) vectors
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$c->addVectorLayer($radius, $angle, $magnitude, $direction, RadialAxisScale, 0x0000ff
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);
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# output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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