matrix_edgeex01.php

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

    $data = array(
        array(0,null,2,3,4,5,6,7,8,9,10,8,6,4,2),
        array(10,9,8,7,6,5,4,3,2,1,0,8,5,9,2),
        array(0,1,2,3,4,5,6,7,8,9,10,2,4,5,7),
        array(10,9,8,17,6,5,4,3,2,1,0,8,6,4,2),
        array(0,1,2,3,4,4,9,7,8,9,10,3,2,7,2),
        array(8,1,2,3,4,8,3,7,8,9,10,5,3,9,1),
        array(10,3,5,7,6,5,4,3,12,1,0,6,5,10,2),
        array(10,9,8,7,6,5,4,3,2,1,NULL,8,6,4,2),
    );

    for($i=0; $i < count($data[0]); ++$i ) {
        $xlabels[$i] = sprintf('xlabel: %02d',$i);
    }
    for($i=0; $i < count($data); ++$i ) {
        $ylabels[$i] = sprintf('ylabel: %02d',$i);
    }

    // Setup a nasic matrix graph
    $graph = new MatrixGraph(400,250);
    $graph->SetMarginColor('white');
    $graph->title->Set('Adding labels on the edges');
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,14);

    // Create one matrix plot
    $mp = new MatrixPlot($data,1);
    $mp->SetModuleSize(13,15);
    $mp->SetCenterPos(0.35,0.45);
    $mp->colormap->SetNullColor('gray');

    // Setup column lablels
    $mp->collabel->Set($xlabels);
    $mp->collabel->SetSide('bottom');
    $mp->collabel->SetFont(FF_ARIAL,FS_NORMAL,8);
    $mp->collabel->SetFontColor('darkgray');

    // Setup row lablels
    $mp->rowlabel->Set($ylabels);
    $mp->rowlabel->SetSide('right');
    $mp->rowlabel->SetFont(FF_ARIAL,FS_NORMAL,8);
    $mp->rowlabel->SetFontColor('darkgray');

    // Move the legend more to the right
    $mp->legend->SetMargin(90);

    $graph->Add($mp);
    $graph->Stroke();

    ?>