background_type_ex4.php

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    <?php // content="text/plain; charset=utf-8"
    require_once ('jpgraph/jpgraph.php');
    require_once ('jpgraph/jpgraph_line.php');

    // Some data
    $ydata = array(11,3,8,12,5,1,9,13,5,7);

    // Create the graph. These two calls are always required
    $graph = new Graph(350,250);
    $graph->SetScale("textlin");
    $graph->SetMargin(40,40,50,50);

    // Setup the grid and plotarea box
    $graph->ygrid->SetLineStyle('dashed');
    $graph->ygrid->setColor('darkgray');
    $graph->SetBox(true);

    // Steup graph titles
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,12);
    $graph->title->Set('Using background image');
    $graph->subtitle->SetFont(FF_COURIER,FS_BOLD,11);
    $graph->subtitle->Set('"BGIMG_FILLFRAME"');
    $graph->subtitle->SetColor('darkred');

    // Add background with 25% mix
    $graph->SetBackgroundImage('heat1.jpg',BGIMG_FILLFRAME);
    $graph->SetBackgroundImageMix(25);

    // Create the linear plot
    $lineplot=new LinePlot($ydata);
    $lineplot->SetColor("blue");

    // Add the plot to the graph
    $graph->Add($lineplot);

    // Display the graph
    $graph->Stroke();
    ?>