windrose_2plots_ex1.php

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

    // Data can be specified using both ordinal idex of axis as well
    // as the direction label
    $data = array(
        1 => array(10,10,13,7),
        2 => array(2,8,10),
        4 => array(1,12,22),
        );

    $data2 = array(
        4 => array(12,8,2,3),
        2 => array(5,4,4,5,2),
        );

    // Create a new small windrose graph
    $graph = new WindroseGraph(660,400);
    $graph->SetShadow();

    $graph->title->Set('Two windrose plots in one graph');
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,14);
    $graph->subtitle->Set('(Using Box() for each plot)');

    $wp = new WindrosePlot($data);
    $wp->SetType(WINDROSE_TYPE8);
    $wp->SetSize(0.42);
    $wp->SetPos(0.25,0.55);
    $wp->SetBox();

    $wp2 = new WindrosePlot($data2);
    $wp2->SetType(WINDROSE_TYPE16);
    $wp2->SetSize(0.42);
    $wp2->SetPos(0.74,0.55);
    $wp2->SetBox();
    $wp2->SetRangeColors(array('green','yellow','red','brown'));

    $graph->Add($wp);
    $graph->Add($wp2);

    $graph->Stroke();
    ?>