dateutilex01.php

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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_utils.inc.php');

    // Get a dataset stored in $xdata and $ydata
    require_once('dataset01.inc.php');

    $dateUtils = new DateScaleUtils();

    // Setup a basic graph
    $width=500; $height=300;
    $graph = new Graph($width, $height);

    // We set the x-scale min/max values to avoid empty space
    // on the side of the plot
    $graph->SetScale('intlin',0,0,min($xdata),max($xdata));
    $graph->SetMargin(60,20,40,60);

    // Setup the titles
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,12);
    $graph->title->Set('Development since 1984');
    $graph->subtitle->SetFont(FF_ARIAL,FS_ITALIC,10);
    $graph->subtitle->Set('(Example using DateScaleUtils class)');

    // Setup the labels to be correctly format on the X-axis
    $graph->xaxis->SetFont(FF_ARIAL,FS_NORMAL,8);
    $graph->xaxis->SetLabelAngle(30);

    // The second paramter set to 'true' will make the library interpret the
    // format string as a date format. We use a Month + Year format
    $graph->xaxis->SetLabelFormatString('M, Y',true);

    // Get manual tick every second year
    list($tickPos,$minTickPos) = $dateUtils->getTicks($xdata,DSUTILS_YEAR2);
    $graph->xaxis->SetTickPositions($tickPos,$minTickPos);

    // First add an area plot
    $lp1 = new LinePlot($ydata,$xdata);
    $lp1->SetWeight(0);
    $lp1->SetFillColor('orange@0.85');
    $graph->Add($lp1);

    // And then add line. We use two plots in order to get a
    // more distinct border on the graph
    $lp2 = new LinePlot($ydata,$xdata);
    $lp2->SetColor('orange');
    $graph->Add($lp2);

    // And send back to the client
    $graph->Stroke();

    ?>