69 lines
2.0 KiB
PHP
69 lines
2.0 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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#
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# We use a random table to simulate generating 12 months of data
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#
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# Create the random table object with 4 cols * 12 rows, using 3 as seed
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$rantable = new RanTable(3, 4, 12);
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# Set the 1st column to be the 12 months of year 2002
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$rantable->setDateCol(0, chartTime(2002, 1, 1), 86400 * 30);
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# Set the 2nd, 3rd and 4th columns to be random numbers starting from 125, 75, and
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# 100 respectively. The change between rows is set to -35 to + 35. The minimum value
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# of any cell is 0.
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$rantable->setCol(1, 125, -35, 35, 0);
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$rantable->setCol(2, 75, -35, 35, 0);
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$rantable->setCol(3, 100, -35, 35, 0);
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# Get the 1st column (time) as the x data
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$dataX = $rantable->getCol(0);
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# Get the 2nd, 3rd and 4th columns as 3 data sets
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$dataY0 = $rantable->getCol(1);
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$dataY1 = $rantable->getCol(2);
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$dataY2 = $rantable->getCol(3);
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# Create a XYChart object of size 360 x 400 pixels
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$c = new XYChart(360, 400);
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# Add a title to the chart
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$c->addTitle("<*underline=2*>Rotated Line Chart Demo", "timesbi.ttf", 14);
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# Set the plotarea at (60, 75) and of size 190 x 320 pixels. Turn on both horizontal
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# and vertical grid lines with light grey color (0xc0c0c0)
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$plotAreaObj = $c->setPlotArea(60, 75, 190, 320);
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$plotAreaObj->setGridColor(0xc0c0c0, 0xc0c0c0);
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# Add a legend box at (270, 75)
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$c->addLegend(270, 75);
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# Swap the x and y axis to become a rotated chart
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$c->swapXY();
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# Set the y axis on the top side (right + rotated = top)
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$c->setYAxisOnRight();
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# Add a title to the y axis
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$c->yAxis->setTitle("Throughput (MBytes)");
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# Reverse the x axis so it is pointing downwards
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$c->xAxis->setReverse();
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# Add a line chart layer using the given data
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$layer = $c->addLineLayer2();
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$layer->setXData($dataX);
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$layer->addDataSet($dataY0, 0xff0000, "Server A");
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$layer->addDataSet($dataY1, 0x338033, "Server B");
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$layer->addDataSet($dataY2, 0x0000ff, "Server C");
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# Set the line width to 2 pixels
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$layer->setLineWidth(2);
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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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