source: trunk/xgraph/jpgraph/Examples/windrose_ex1.php@ 42

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

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

// Create the windrose plot.
$wp = new WindrosePlot($data);
$wp->SetRadialGridStyle('solid');
$graph->Add($wp);

// Send the graph to the browser
$graph->Stroke();
?>