jpgraph某个时间段的数据统计
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2022-04-15 08:05:05
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<?php // content="text/plain; charset=utf-8" require_once ('jpgraph/jpgraph.php'); require_once ('jpgraph/jpgraph_line.php'); require_once ('jpgraph/jpgraph_date.php'); // Create a data set in range (50,70) and X-positions DEFINE('NDATAPOINTS',3600); DEFINE('SAMPLERATE',2); $start = time(); //var_dump($start);exit(); $end = $start+NDATAPOINTS*SAMPLERATE; $data = array(); $xdata = array(); for( $i=0; $i < NDATAPOINTS; ++$i ) { $data[$i] = rand(39,100); $xdata[$i] = $start + $i * SAMPLERATE; } //var_dump($data);exit(); // Create the new graph $graph = new Graph(540,300); // Slightly larger than normal margins at the bottom to have room for // the x-axis labels $graph->SetMargin(40,40,30,130); // Fix the Y-scale to go between [0,100] and use date for the x-axis $graph->SetScale('datlin',0,200); //$graph->title->Set("hello"); // Set the angle for the labels to 90 degrees $graph->xaxis->SetLabelAngle(90); $line = new LinePlot($data,$xdata); $line->SetFillColor('lightblue@0.9'); $graph->Add($line); $graph->Stroke(); ?>