<?php require_once 'jpgraph/jpgraph.php'; require_once 'jpgraph/jpgraph_windrose.php'; // Data can be specified using both ordinal index of the axis // as well as the direction label $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); $graph->title->Set('Windrose example 1b'); $graph->title->SetFont(FF_VERDANA, FS_BOLD, 12); $graph->title->SetColor('navy'); // Create the windrose plot. // The default plot will have 16 compass axis. $wp = new WindrosePlot($data); $wp->SetRadialGridStyle('solid'); $graph->Add($wp); // Setup the range so that the values do not touch eachother $wp->SetRanges(array(0, 1, 2, 3, 4, 5, 6, 7, 8, 10)); $wp->SetRangeStyle(RANGE_DISCRETE); // Cmp with RANGE_OVERLAPPING as default // Send the graph to the browser $graph->Stroke(); ?>