windrose_ex6.php

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    <?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(
        '10'  => array(1,1,2.5,4),
        '32.0' => array(3,4,1,4),
        '120.5' => array(2,3,4,4,3,2,1),
        '223.2' => array(2,4,1,2,2),
        '285.7' => array(2,2,1,2,4,2,1,1)
    );

    // Specify text for direction labels
    $labels = array( '120.5' => "Plant\n#1275",
             '285.7' => "Reference\n#13 Ver:2");

    // Range colors to be used
    $rangeColors = array('khaki','yellow','orange','orange:0.7','brown','darkred','black');

    // First create a new windrose graph with a title
    $graph = new WindroseGraph(400,450);

    // Setup titles
    $graph->title->Set('Windrose example 6');
    $graph->title->SetFont(FF_VERDANA,FS_BOLD,12);
    $graph->title->SetColor('navy');

    $graph->subtitle->Set('(Free type plot)');
    $graph->subtitle->SetFont(FF_VERDANA,FS_ITALIC,10);
    $graph->subtitle->SetColor('navy');

    // Create the windrose plot.
    $wp = new WindrosePlot($data);

    // Setup a free plot
    $wp->SetType(WINDROSE_TYPEFREE);

    // Setup labels
    $wp->SetLabels($labels);
    $wp->SetLabelPosition(LBLPOSITION_CENTER);
    $wp->SetLabelMargin(30);

    // Setup the colors for the ranges
    $wp->SetRangeColors($rangeColors);

    // Adjust the font and font color for scale labels
    $wp->scale->SetFont(FF_ARIAL,FS_NORMAL,9);

    // Set the diameter and position for plot
    $wp->SetSize(230);
    $wp->SetZCircleSize(30);

    // Adjust the font and font color for compass directions
    $wp->SetFont(FF_ARIAL,FS_NORMAL,10);
    $wp->SetFontColor('darkgreen');

    // Adjust grid colors
    $wp->SetGridColor('darkgreen@0.7','blue');

    // Add (m/s) text to legend
    $wp->legend->SetText('(m/s)');

    // Display legend values with no decimals
    $wp->legend->SetFormat('%d');

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