windrose_ex7.1.php

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    <?php // content="text/plain; charset=utf-8"
    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(
        2 => array(1,15,7.5,2),
        5 => array(1,1,1.5,2),
        7 => array(1,2,10,3,2),
        8 => array(2,3,1,3,1,2),
        );

    // First create a new windrose graph with a title
    $graph = new WindroseGraph(590,580);
    $graph->title->Set('Japanese locale');
    $graph->title->SetFont(FF_VERDANA,FS_BOLD,14);
    $graph->title->SetColor('navy');

    // Create the free windrose plot.
    $wp = new WindrosePlot($data);
    $wp->SetType(WINDROSE_TYPE8);

    // Add some "arbitrary" text to the center
    $wp->scale->SetZeroLabel("SOx\n8%%");

    // Localize the compass direction labels into Japanese
    // Note: The labels for data must now also match the exact
    // string for the compass directions.
    //
    // Ｅ　　　東
    // NＥ　　北東
    // Ｎ　　　北
    // NＷ　　北西
    // Ｗ　　　西
    // SＷ　　南西
    // Ｓ　　　南
    // SＥ　　南東
    $jp_CompassLbl = array('東','','北東','','北','','北西','',
                            '西','','南西','','南','','南東','');
    $wp->SetCompassLabels($jp_CompassLbl);
    $wp->SetFont(FF_MINCHO,FS_NORMAL,15);

    // Localize the "Calm" text into Swedish and make the circle
    // slightly bigger than default
    $jp_calmtext = '平穏';
    $wp->legend->SetCircleText($jp_calmtext);
    $wp->legend->SetCircleRadius(20);
    $wp->legend->SetCFont(FF_MINCHO,FS_NORMAL,10);
    $wp->legend->SetMargin(5,0);
    $wp->SetPos(0.5, 0.5);

    // Adjust the displayed ranges
    $ranges = array(1,3,5,8,12,19,29);
    $wp->SetRanges($ranges);

    // Set the scale to always have max value of 30
    $wp->scale->Set(30,10);
    $wp->scale->SetFont(FF_VERA,FS_NORMAL,12);

    // Finally add it to the graph and send back to client
    $graph->Add($wp);
    $graph->Stroke();
    ?>