64 lines
1.7 KiB
PHP
Executable File
64 lines
1.7 KiB
PHP
Executable File
<?php // content="text/plain; charset=utf-8"
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require_once ('../jpgraph.php');
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require_once ('../jpgraph_line.php');
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require_once ('../jpgraph_date.php');
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DEFINE('INTERVAL', 5*60);
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// First create some "dummy" data
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$m = 5; // Number of data sets
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$n = 4; // Number of bids to show
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$startbid = 8000;
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for( $i=0; $i < $m; ++$i ) {
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$bids[$i] = array($startbid + rand(100,500)*10 );
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for( $j=1; $j < $n; ++$j ) {
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$bids[$i][$j] = $bids[$i][$j-1] + rand(20,500)*10;
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}
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}
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$start = floor(time()/INTERVAL)*INTERVAL;
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$times = array($start);
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for( $i=1; $i < $n; ++$i ) {
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// Create a timestamp for every 5 minutes
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$times[$i] = $times[$i-1]+INTERVAL;
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}
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// Setup the bid graph
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$graph = new Graph(600,250);
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$graph->SetMargin(80,30,50,40);
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$graph->SetMarginColor('white');
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$graph->SetScale('dateint');
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$graph->title->Set('Current Bids');
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$graph->title->SetFont(FF_ARIAL,FS_BOLD,12);
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$graph->subtitle->Set('(Updated every 5 minutes)');
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$graph->subtitle->SetFont(FF_ARIAL,FS_ITALIC,10);
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// Enable antialias
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$graph->img->SetAntiAliasing();
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// Setup the y-axis to show currency values
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$graph->yaxis->SetLabelFormatCallback('number_format');
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$graph->yaxis->SetLabelFormat('$%s');
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//Use hour:minute format for the labels
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$graph->xaxis->scale->SetDateFormat('H:i');
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// Force labels to only be displayed every 5 minutes
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$graph->xaxis->scale->ticks->Set(INTERVAL);
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// Adjust the start time for an "even" 5 minute, i.e. 5,10,15,20,25, ...
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$graph->xaxis->scale->SetTimeAlign(MINADJ_5);
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// Create the plots using the dummy data created at the beginning
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$line = array();
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for( $i=0; $i < $m; ++$i ) {
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$line[$i] = new LinePlot($bids[$i],$times);
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$line[$i]->mark->SetType(MARK_SQUARE);
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}
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$graph->Add($line);
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// Send the graph back to the client
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$graph->Stroke();
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?>
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