example24.php

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

    $data1y=array(12,8,19,3,10,5);
    $data2y=array(8,2,11,7,14,4);
    $data3y=array(3,9,2,7,5,8);
    $data4y=array(1,5,11,2,14,4);

    // Create the graph. These two calls are always required
    $graph = new Graph(310,200);
    $graph->SetScale("textlin");

    $graph->SetShadow();
    $graph->img->SetMargin(40,30,20,40);

    $b1plot = new BarPlot($data1y);
    $b1plot->SetFillColor("orange");
    $b2plot = new BarPlot($data2y);
    $b2plot->SetFillColor("blue");
    $b3plot = new BarPlot($data3y);
    $b3plot->SetFillColor("green");
    $b4plot = new BarPlot($data4y);
    $b4plot->SetFillColor("brown");

    // Create the accumulated bar plots
    $ab1plot = new AccBarPlot(array($b1plot,$b2plot));
    $ab2plot = new AccBarPlot(array($b3plot,$b4plot));

    // Create the grouped bar plot
    $gbplot = new GroupBarPlot(array($ab1plot,$ab2plot));

    // ...and add it to the graph
    $graph->Add($gbplot);

    $graph->title->Set("Grouped Accumulated bar plots");
    $graph->xaxis->title->Set("X-title");
    $graph->yaxis->title->Set("Y-title");

    $graph->title->SetFont(FF_FONT1,FS_BOLD);
    $graph->yaxis->title->SetFont(FF_FONT1,FS_BOLD);
    $graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);

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