73 lines
2.3 KiB
PHP
73 lines
2.3 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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$data = array(40, 15, 7, 5, 2);
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# The labels for the chart
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$labels = array("Hard Disk", "PCB", "Printer", "CDROM", "Keyboard");
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# Create a XYChart object of size 400 x 225 pixels. Use golden background color, with
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# a 2 pixel 3D border.
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$c = new XYChart(400, 225, goldColor(), -1, 2);
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# Add a title box using Arial Bold/11 pt font. Set the background color to metallic
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# blue (9999FF). Use a 1 pixel 3D border.
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$textBoxObj = $c->addTitle("Hardware Defects", "arialbd.ttf", 11);
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$textBoxObj->setBackground(metalColor(0x9999ff), -1, 1);
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# Set the plotarea at (50, 40) and of 300 x 150 pixels in size, with a silver
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# background color.
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$c->setPlotArea(50, 40, 300, 150, silverColor());
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# Add a line layer for the pareto line
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$lineLayer = $c->addLineLayer();
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# Compute the pareto line by accumulating the data
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$lineData = new ArrayMath($data);
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$lineData->acc();
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# Set a scaling factor such as the maximum point of the line is scaled to 100
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$scaleFactor = 100 / $lineData->max();
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$lineData->mul2($scaleFactor);
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# Add the pareto line using the scaled data. Use deep blue (0x80) as the line color,
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# with light blue (0x9999ff) diamond symbols
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$dataSetObj = $lineLayer->addDataSet($lineData->result(), 0x000080);
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$dataSetObj->setDataSymbol(DiamondSymbol, 9, 0x9999ff);
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# Set the line width to 2 pixel
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$lineLayer->setLineWidth(2);
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# Add a multi-color bar layer using the given data.
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$barLayer = $c->addBarLayer3($data);
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# Bind the layer to the secondary (right) y-axis.
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$barLayer->setUseYAxis2();
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# Set soft lighting for the bars with light direction from the right
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$barLayer->setBorderColor(Transparent, softLighting(Right));
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# Set the labels on the x axis.
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$c->xAxis->setLabels($labels);
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# Set the primary y-axis scale as 0 - 100 with a tick every 20 units
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$c->yAxis->setLinearScale(0, 100, 20);
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# Set the label format of the y-axis label to include a percentage sign
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$c->yAxis->setLabelFormat("{value}%");
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# Add a title to the secondary y-axis
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$c->yAxis2->setTitle("Frequency");
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# Set the secondary y-axis label foramt to show no decimal point
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$c->yAxis2->setLabelFormat("{value|0}");
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# Set the relationship between the two y-axes, which only differ by a scaling factor
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$c->syncYAxis(1 / $scaleFactor);
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# Output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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