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site/jpgraph/Examples/windrose_ex5.php 2.62 KB
8ec98c9f   Guillaume   MAJ
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  <?php
  require_once ('jpgraph/jpgraph.php');
  require_once ('jpgraph/jpgraph_windrose.php');
  
  // Data
  $data = array(
      0 => array(1,1,2.5,4),
      1 => array(3,4,1,4),
      3 => array(2,7,4,4,3),
      5 => array(2,7,1,2));
  
  // Text to be added.
  $txt=array();
  $txt[0] = "It is possible to add arbitrary,multi line, text to a graph. ";
  $txt[0] .= "Such a paragraph can have it's text be left, right or center ";
  $txt[0] .= "aligned.";
  $txt[1] = "This is an example of a right aligned paragraph.";
  $txt[2] = "Finally we can show a center aligned paragraph without box.";
  
  // We store the layout for each of the text boxes in an array
  // to keep the code clean
  $txtlayout = array(
      array(0.97,0.15,25,'left','black','lightblue'),
      array(0.97,0.4,20,'right','black','lightblue'),
      array(0.97,0.7,20,'center','darkred',false,FF_COMIC,FS_NORMAL,12),
  );
  
  // Range colors to be used
  $rangeColors = array('silver','khaki','orange','brown','blue','navy','maroon','red');
  
  // First create a new windrose graph with a title
  $graph = new WindroseGraph(570,430);
  $graph->title->Set('Windrose example 5');
  $graph->title->SetFont(FF_VERDANA,FS_BOLD,12);
  $graph->title->SetColor('navy');
  
  // Setup graph background color
  $graph->SetColor('darkgreen@0.7');
  
  // Setup all the defined text boxes
  $n = count($txt);
  for( $i=0; $i < $n; ++$i ) {
      $txtbox[$i] = new Text($txt[$i]);
      $txtbox[$i]->SetPos($txtlayout[$i][0],$txtlayout[$i][1],'right');
      $txtbox[$i]->SetWordwrap($txtlayout[$i][2]);
      $txtbox[$i]->SetParagraphAlign($txtlayout[$i][3]);
      $txtbox[$i]->SetColor($txtlayout[$i][4]);
      $txtbox[$i]->SetBox($txtlayout[$i][5]);
      if( count($txtlayout[$i]) > 6 )
  	$txtbox[$i]->SetFont($txtlayout[$i][6],$txtlayout[$i][7],$txtlayout[$i][8]);
  }
  $graph->Add($txtbox);
  
  // Create the windrose plot.
  $wp = new WindrosePlot($data);
  
  // Set background color for plot area
  $wp->SetColor('lightyellow');
  
  // Add a box around the plot
  $wp->SetBox();
  
  // 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);
  $wp->scale->SetFontColor('navy');
  
  // Set the diameter and position for plot
  $wp->SetSize(190);
  $wp->SetPos(0.35,0.53);
  
  $wp->SetZCircleSize(0.2);
  
  // Adjust the font and font color for compass directions
  $wp->SetFont(FF_ARIAL,FS_NORMAL,10);
  $wp->SetFontColor('darkgreen');
  
  // Adjust the margin to the compass directions
  $wp->SetLabelMargin(50);
  
  // Adjust grid colors
  $wp->SetGridColor('silver','blue');
  
  // Add (m/s) text to legend
  $wp->legend->SetText('(m/s)');
  $wp->legend->SetMargin(20,5);
  
  // Add plot and send back to client
  $graph->Add($wp);
  $graph->Stroke();
  ?>