71 lines
2.4 KiB
PHP
71 lines
2.4 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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# The data for the chart
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$data = array(51, 15, 51, 40, 17, 87, 94, 21, 35, 88, 50, 60);
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# The labels for the chart
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$labels = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept",
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"Oct", "Nov", "Dec");
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# Create a PolarChart object of size 400 x 420 pixels
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$c = new PolarChart(400, 420);
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# Set background color to a 2 pixel pattern color, with a black border and 1 pixel 3D
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# border effect
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$c->setBackground($c->patternColor(array(0xffffff, 0xe0e0e0), 2), 0, 1);
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# Add a title to the chart using 16 pts Arial Bold Italic font. The title text is
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# white (0xffffff) on 2 pixel pattern background
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$textBoxObj = $c->addTitle("Chemical Concentration", "arialbi.ttf", 16, 0xffffff);
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$textBoxObj->setBackground($c->patternColor(array(0x000000, 0x000080), 2));
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# Set center of plot area at (200, 240) with radius 145 pixels. Set background color
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# to blue (9999ff)
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$c->setPlotArea(200, 240, 145, 0x9999ff);
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# Color the region between radius = 40 to 80 as green (99ff99)
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$radialAxisObj = $c->radialAxis();
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$radialAxisObj->addZone(40, 80, 0x99ff99);
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# Color the region with radius > 80 as red (ff9999)
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$radialAxisObj = $c->radialAxis();
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$radialAxisObj->addZone(80, 999, 0xff9999);
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# Set the grid style to circular grid
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$c->setGridStyle(false);
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# Set the radial axis label format
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$radialAxisObj = $c->radialAxis();
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$radialAxisObj->setLabelFormat("{value} ppm");
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# Use semi-transparent (40ffffff) label background so as not to block the data
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$radialAxisObj = $c->radialAxis();
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$textBoxObj = $radialAxisObj->setLabelStyle();
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$textBoxObj->setBackground(0x40ffffff, 0x40000000);
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# Add a legend box at (200, 30) top center aligned, using 9 pts Arial Bold font. with
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# a black border.
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$legendBox = $c->addLegend(200, 30, false, "arialbd.ttf", 9);
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$legendBox->setAlignment(TopCenter);
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# Add legend keys to represent the red/green/blue zones
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$legendBox->addKey("Under-Absorp", 0x9999ff);
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$legendBox->addKey("Normal", 0x99ff99);
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$legendBox->addKey("Over-Absorp", 0xff9999);
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# Add a blue (000080) spline line layer with line width set to 3 pixels and using
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# yellow (ffff00) circles to represent the data points
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$layer = $c->addSplineLineLayer($data, 0x000080);
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$layer->setLineWidth(3);
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$layer->setDataSymbol(CircleShape, 11, 0xffff00);
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# Set the labels to the angular axis as spokes.
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->setLabels($labels);
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# output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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