67 lines
2.4 KiB
PHP
67 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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$data = array(5.1, 1.5, 5.1, 4.0, 1.7, 8.7, 9.4, 2.1, 3.5, 8.8, 5.0, 6.0);
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# The labels for the chart
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$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. with a metallic blue (9999ff)
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# background color and 1 pixel 3D border
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$c = new PolarChart(400, 420, metalColor(0x9999ff), 0x000000, 1);
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# Add a title to the chart using 16 pts Arial Bold Italic font. The title text is
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# white (0xffffff) on deep blue (000080) background
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$textBoxObj = $c->addTitle("Chemical Concentration", "arialbi.ttf", 16, 0xffffff);
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$textBoxObj->setBackground(0x000080);
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# Set center of plot area at (200, 240) with radius 145 pixels. Set background color
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# to green (0x33ff33)
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$c->setPlotArea(200, 240, 145, 0x33ff33);
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# Set the labels to the angular axis
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->setLabels($labels);
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# Color the sector between label index = 5.5 to 7.5 as red (ff3333) zone
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->addZone(5.5, 7.5, 0xff3333);
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# Color the sector between label index = 4.5 to 5.5, and also between 7.5 to 8.5, as
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# yellow (ff3333) zones
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->addZone(4.5, 5.5, 0xffff00);
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$angularAxisObj = $c->angularAxis();
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$angularAxisObj->addZone(7.5, 8.5, 0xffff00);
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# Set the grid style to circular grid
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$c->setGridStyle(false);
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# Use semi-transparent (40ffffff) label background so as not to block the data
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$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/yellow/green zones
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$legendBox->addKey("Very Dry", 0xff3333);
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$legendBox->addKey("Critical", 0xffff00);
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$legendBox->addKey("Moderate", 0x33ff33);
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# Add a blue (0x80) line layer with line width set to 3 pixels and use purple
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# (ff00ff) cross symbols for the data points
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$layer = $c->addLineLayer($data, 0x000080);
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$layer->setLineWidth(3);
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$layer->setDataSymbol(Cross2Shape(), 15, 0xff00ff);
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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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