source: trunk/xgraph/jpgraph/Examples/matrix_edgeex02.php@ 42

<?php
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_matrix.php');
require_once ('jpgraph/jpgraph_iconplot.php');

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

$nrow = count($data); $ncol = count($data[0]);

$width=350; $height=300;
$graph = new MatrixGraph($width,$height);
$graph->title->Set('Add ine row/col labels');
$graph->title->SetFont(FF_ARIAL,FS_BOLD,14);

$mp = new MatrixPlot($data,1);
$mp->SetSize(0.55);
$mp->SetCenterPos(0.45, 0.45);

$rowtitles = array();
for( $i=0; $i < $nrow; ++$i ) {
    $rowtitles[$i] = sprintf('Row: %02d',$i);
}
$coltitles = array();
for( $i=0; $i < $ncol; ++$i ) {
    $coltitles[$i] = sprintf('Col: %02d',$i);
}

$mp->rowlabel->Set($rowtitles);
$mp->rowlabel->SetFont(FF_ARIAL,FS_NORMAL,10);
$mp->rowlabel->SetFontColor('blue');
$mp->rowlabel->SetSide('left');

$mp->collabel->Set($coltitles);
$mp->collabel->SetFont(FF_ARIAL,FS_NORMAL,10);
$mp->collabel->SetFontColor('darkred');
$mp->collabel->SetAngle(70); // 90 is default for col titles
$mp->collabel->SetSide('bottom');

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

?>