Subversion-Projekte lars-tiefland.php_share

<?php

include ("../jpgraph.php");

include ("../jpgraph_line.php");

// The callback that converts timestamp to minutes and seconds

function TimeCallback($aVal) {

    return Date('H:i:s',$aVal);

}

// Fake some suitable random data

$now = time();

$datax = array($now);

for( $i=0; $i < 360; $i += 10 ) {

    $datax[] = $now + $i;

}

$n = count($datax);

$datay=array();

for( $i=0; $i < $n; ++$i ) {

    $datay[] = rand(30,150);

}

// Setup the basic graph

$graph = new Graph(324,250);

$graph->SetMargin(40,40,30,70);

$graph->title->Set('Date: '.date('Y-m-d',$now));

$graph->SetAlphaBlending();

// Setup a manual x-scale (We leave the sentinels for the

// Y-axis at 0 which will then autoscale the Y-axis.)

// We could also use autoscaling for the x-axis but then it

// probably will start a little bit earlier than the first value

// to make the first value an even number as it sees the timestamp

// as an normal integer value.

$graph->SetScale("intlin",0,200,$now,$datax[$n-1]);

// Setup the x-axis with a format callback to convert the timestamp

// to a user readable time

$graph->xaxis->SetLabelFormatCallback('TimeCallback');

$graph->xaxis->SetLabelAngle(90);

// Create the line

$p1 = new LinePlot($datay,$datax);

$p1->SetColor("blue");

// Set the fill color partly transparent

$p1->SetFillColor("blue@0.4");

// Add lineplot to the graph

$graph->Add($p1);

// Output line

$graph->Stroke();

?>