windrose_layout_ex0.php

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

    // Some data for the five windrose plots
    $data = array(
        array(
            1 => array(10,10,13,7),
            2 => array(2,8,10),
            4 => array(1,12,22)),
        array(
            4 => array(12,8,2,3),
            2 => array(5,4,4,5,2)),
        array(
            1 => array(12,8,2,3),
            3 => array(5,4,4,5,2)),
        array(
            2 => array(12,8,2,3),
            3 => array(5,4,4,5,2)),
    );

    // Create a windrose graph with titles
    $graph = new WindroseGraph(600,650);
    $graph->SetShadow();

    $graph->title->Set('Multiple plots with automatic layout');
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,14);

    // Setup the individual windrose plots
    $wp = array();
    for( $i=0; $i < 4; ++$i ) {
        $wp[$i] = new WindrosePlot($data[$i]);
        $wp[$i]->SetSize(0.22);
        $wp[$i]->SetCenterSize(0.25);
    }

    // Position with two rows. Two plots in top row and three plots in
    // bottom row.
    $hl1 = new LayoutHor( array( $wp[0], $wp[1] ) );
    $hl2 = new LayoutHor( array( $wp[2], $wp[3] ) );
    $vl = new LayoutVert( array( $hl1, $hl2) );

    $graph->Add($vl);
    $graph->Stroke();
    ?>