48 lines
1.4 KiB
PHP
48 lines
1.4 KiB
PHP
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<?php
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require_once("../lib/phpchartdir.php");
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# The data for the area chart
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$data = array(30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60, 55, 53, 35,
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50, 66, 56, 48, 52, 65, 62);
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# The labels for the area chart
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$labels = array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24);
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# Create a XYChart object of size 320 x 320 pixels
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$c = new XYChart(320, 320);
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# Swap the x and y axis to become a rotated chart
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$c->swapXY();
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# Set the y axis on the top side (right + rotated = top)
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$c->setYAxisOnRight();
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# Reverse the x axis so it is pointing downwards
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$c->xAxis->setReverse();
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# Set the plotarea at (50, 50) and of size 200 x 200 pixels. Enable horizontal and
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# vertical grids by setting their colors to grey (0xc0c0c0).
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$plotAreaObj = $c->setPlotArea(50, 50, 250, 250);
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$plotAreaObj->setGridColor(0xc0c0c0, 0xc0c0c0);
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# Add a line chart layer using the given data
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$c->addAreaLayer($data, $c->gradientColor(50, 0, 300, 0, 0xffffff, 0x0000ff));
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# Set the labels on the x axis. Append "m" after the value to show the unit.
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$c->xAxis->setLabels2($labels, "{value} m");
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# Display 1 out of 3 labels.
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$c->xAxis->setLabelStep(3);
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# Add a title to the x axis
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$c->xAxis->setTitle("Depth");
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# Add a title to the y axis
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$c->yAxis->setTitle("Carbon Dioxide Concentration (ppm)");
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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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