73 lines
2.6 KiB
PHP
73 lines
2.6 KiB
PHP
<?php
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require_once("../lib/phpchartdir.php");
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# The XY data of the first data series
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$dataX = array(50, 55, 37, 24, 42, 49, 63, 72, 83, 59);
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$dataY = array(3.6, 2.8, 2.5, 2.3, 3.8, 3.0, 3.8, 5.0, 6.0, 3.3);
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# Create a XYChart object of size 450 x 420 pixels
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$c = new XYChart(450, 420);
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# Set the plotarea at (55, 65) and of size 350 x 300 pixels, with white background
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# and a light grey border (0xc0c0c0). Turn on both horizontal and vertical grid lines
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# with light grey color (0xc0c0c0)
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$c->setPlotArea(55, 65, 350, 300, 0xffffff, -1, 0xc0c0c0, 0xc0c0c0, -1);
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# Add a title to the chart using 18 point Times Bold Itatic font.
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$c->addTitle("Server Performance", "timesbi.ttf", 18);
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# Add a title to the y axis using 12 pts Arial Bold Italic font
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$c->yAxis->setTitle("Response Time (sec)", "arialbi.ttf", 12);
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# Set the y axis line width to 3 pixels
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$c->yAxis->setWidth(3);
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# Set the y axis label format to show 1 decimal point
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$c->yAxis->setLabelFormat("{value|1}");
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# Add a title to the x axis using 12 pts Arial Bold Italic font
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$c->xAxis->setTitle("Server Load (TPS)", "arialbi.ttf", 12);
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# Set the x axis line width to 3 pixels
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$c->xAxis->setWidth(3);
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# Add a scatter layer using (dataX, dataY)
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$c->addScatterLayer($dataX, $dataY, "", DiamondSymbol, 11, 0x008000);
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# Add a trend line layer for (dataX, dataY)
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$trendLayer = $c->addTrendLayer2($dataX, $dataY, 0x008000);
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# Set the line width to 3 pixels
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$trendLayer->setLineWidth(3);
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# Add a 95% confidence band for the line
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$trendLayer->addConfidenceBand(0.95, 0x806666ff);
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# Add a 95% confidence band (prediction band) for the points
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$trendLayer->addPredictionBand(0.95, 0x8066ff66);
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# Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 10 pts
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# Arial Bold Italic font. Set the background and border color to Transparent.
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$legendBox = $c->addLegend(50, 30, false, "arialbi.ttf", 10);
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$legendBox->setBackground(Transparent);
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# Add entries to the legend box
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$legendBox->addKey("95% Line Confidence", 0x806666ff);
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$legendBox->addKey("95% Point Confidence", 0x8066ff66);
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# Display the trend line parameters as a text table formatted using CDML
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$textbox = $c->addText(56, 65, sprintf(
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"<*block*>Slope\nIntercept\nCorrelation\nStd Error<*/*> <*block*>%.4f ".
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"sec/tps\n%.4f sec\n%.4f\n%.4f sec<*/*>", $trendLayer->getSlope(),
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$trendLayer->getIntercept(), $trendLayer->getCorrelation(),
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$trendLayer->getStdError()), "arialbd.ttf", 8);
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# Set the background of the text box to light grey, with a black border, and 1 pixel
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# 3D border
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$textbox->setBackground(0xc0c0c0, 0, 1);
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# output the chart
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header("Content-type: image/png");
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print($c->makeChart2(PNG));
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?>
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