[Sommaire] [Imprimer]

   1  <?php
   2  // A simple Polar graph,
   3  
   4  include  "../jpgraph.php";
   5  include  "../jpgraph_polar.php";
   6  
   7  
   8  $data = array(0,1,30,2,30,25,40,60,
   9            50,110,60,160,70,210,75,230,80,260,85,370,
  10            90,480,
  11            95,370,100,260,105,230,
  12            110,210,120,160,130,110,140,60,
  13            150,25,150,2,180,1);
  14  
  15  $n = count($data);
  16  for($i=0; $i < $n; $i+=2 ) {
  17      $data[$n+$i] = 360-$data[$i];
  18      $data[$n+$i+1] = $data[$i+1];
  19  }
  20  
  21  
  22  $graph = new PolarGraph(300,400);
  23  $graph->SetScale('log',100);
  24  $graph->SetType(POLAR_360);
  25  $graph->SetPlotSize(220,300);
  26  
  27  // Hide frame around graph (by setting width=0)
  28  $graph->SetFrame(true,'white',1);
  29  
  30  $graph->SetBackgroundGradient('blue:1.3','brown:1.4',GRAD_MIDHOR,BGRAD_PLOT);
  31  
  32  // Set color for gradient lines
  33  $graph->axis->SetGridColor('gray','gray','gray');
  34  
  35  $graph->title->Set('Polar plot #7-2');
  36  $graph->title->SetFont(FF_ARIAL,FS_BOLD,16);
  37  $graph->title->SetColor('navy');
  38  
  39  // Adjust legen box position and color
  40  $graph->legend->SetColor('navy','darkgray');
  41  $graph->legend->SetFillColor('white');
  42  $graph->legend->SetShadow('darkgray@0.5',5);
  43  
  44  $p = new PolarPlot($data);
  45  $p->SetFillColor('yellow@0.6');
  46  $p->mark->SetType(MARK_SQUARE);
  47  $p->SetLegend("Mirophone #1\n(No amps)");
  48  
  49  $graph->Add($p);
  50  
  51  $graph->Stroke();
  52  
  53  ?>