[42] | 1 | <?php // content="text/plain; charset=utf-8" |
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| 2 | require_once ('jpgraph/jpgraph.php'); |
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| 3 | require_once ('jpgraph/jpgraph_line.php'); |
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| 4 | require_once ('jpgraph/jpgraph_bar.php'); |
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| 5 | |
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| 6 | function readsunspotdata($aFile, &$aYears, &$aSunspots) { |
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| 7 | $lines = @file($aFile,FILE_IGNORE_NEW_LINES|FILE_SKIP_EMPTY_LINES); |
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| 8 | if( $lines === false ) { |
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| 9 | throw new JpGraphException('Can not read sunspot data file.'); |
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| 10 | } |
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| 11 | foreach( $lines as $line => $datarow ) { |
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| 12 | $split = preg_split('/[\s]+/',$datarow); |
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| 13 | $aYears[] = substr(trim($split[0]),0,4); |
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| 14 | $aSunspots[] = trim($split[1]); |
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| 15 | } |
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| 16 | } |
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| 17 | |
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| 18 | $year = array(); |
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| 19 | $ydata = array(); |
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| 20 | readsunspotdata('yearssn.txt',$year,$ydata); |
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| 21 | |
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| 22 | // Width and height of the graph |
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| 23 | $width = 600; $height = 200; |
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| 24 | |
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| 25 | // Create a graph instance |
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| 26 | $graph = new Graph($width,$height); |
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| 27 | |
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| 28 | // Specify what scale we want to use, |
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| 29 | // int = integer scale for the X-axis |
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| 30 | // int = integer scale for the Y-axis |
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| 31 | $graph->SetScale('intint'); |
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| 32 | |
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| 33 | // Setup a title for the graph |
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| 34 | $graph->title->Set('Sunspot example'); |
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| 35 | |
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| 36 | // Setup titles and X-axis labels |
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| 37 | $graph->xaxis->title->Set('(year from 1701)'); |
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| 38 | |
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| 39 | // Setup Y-axis title |
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| 40 | $graph->yaxis->title->Set('(# sunspots)'); |
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| 41 | |
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| 42 | // Create the linear plot |
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| 43 | $lineplot=new LinePlot($ydata); |
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| 44 | |
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| 45 | // Add the plot to the graph |
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| 46 | $graph->Add($lineplot); |
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| 47 | |
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| 48 | // Display the graph |
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| 49 | $graph->Stroke(); |
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| 50 | |
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| 51 | ?> |
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