source: trunk/xgraph/jpgraph/Examples/windrose_icon_ex1.php

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

$data = array(
    0 => array(1,1,2.5,4),
    1 => array(3,4,1,4),
    'wsw' => array(1,5,5,3),
    'N' => array(2,7,5,4,2),
    15 => array(2,7,12));

// First create a new windrose graph with a title
$graph = new WindroseGraph(400,400);

// Creta an icon to be added to the graph
$icon = new IconPlot('tornado.jpg',10,10,1.3,50);
$icon->SetAnchor('left','top');
$graph->Add($icon);

// Setup title
$graph->title->Set('Windrose icon example');
$graph->title->SetFont(FF_VERDANA,FS_BOLD,12);
$graph->title->SetColor('navy');

// Create the windrose plot.
$wp = new WindrosePlot($data);

// Add to graph and send back to client
$graph->Add($wp);
$graph->Stroke();
?>