// as well as the direction label.
$data = array('45.9' => array(3, 2, 1, 2, 2), 355 => array(1, 1, 1.5, 2), 180 => array(1, 1, 1.5, 2), 150 => array(1, 2, 1, 3), 'S' => array(2, 3, 5, 1));
// Add some labels for afew of the directions
$labels = array(355 => "At\nHome base", 180 => "Probe\n123", 150 => "Power\nplant");
// Define the color,weight and style of some individual radial grid lines.
$axiscolors = array(355 => "red");
$axisweights = array(355 => 8);
$axisstyles = array(355 => 'solid', 150 => 'solid');
// First create a new windrose graph with a title
$graph = new WindroseGraph(400, 460);
$graph->title->Set('Adding label backgrounds');
$graph->title->SetFont(FF_VERDANA, FS_BOLD, 14);
$graph->title->SetColor('navy');
// Create the free windrose plot.
$wp = new WindrosePlot($data);
$wp->SetType(WINDROSE_TYPEFREE);
$wp->scale->SetLabelFillColor('lightblue', 'black');
// Specify colors weights and style for the radial gridlines
$wp->SetRadialColors($axiscolors);
$wp->SetRadialWeights($axisweights);
$wp->SetRadialStyles($axisstyles);
// Add a few labels
$wp->SetLabels($labels);
// Add some "arbitrary" text to the center
$wp->scale->SetZeroLabel("SOx\n8%%");
// Finally add it to the graph and send back to client
$graph->Add($wp);
$graph->Stroke();
?>