[Sommaire] [Imprimer]

   1  <?php
   2  include  ("../jpgraph.php");
   3  include  ("../jpgraph_line.php");
   4  
   5  DEFINE('WORLDMAP','worldmap1.jpg');
   6  
   7  function markCallback($y,$x) {
   8      // Return array width
   9      // width,color,fill color, marker filename, imgscale
  10      // any value can be false, in that case the default value will
  11      // be used.
  12      // We only make one pushpin another color
  13      if( $x == 54 ) 
  14      return array(false,false,false,'red',0.8);
  15      else
  16      return array(false,false,false,'green',0.8);
  17  }
  18  
  19  // Data arrays
  20  $datax = array(10,20,30,40,54,60,70,80);
  21  $datay = array(12,23,65,18,84,28,86,44);
  22  
  23  // Setup the graph
  24  $graph = new Graph(400,270);
  25  
  26  // We add a small 1pixel left,right,bottom margin so the plot area
  27  // doesn't cover the frame around the graph.
  28  $graph->img->SetMargin(1,1,1,1);
  29  $graph->SetScale('linlin',0,100,0,100);
  30  
  31  // We don't want any axis to be shown
  32  $graph->xaxis->Hide();
  33  $graph->yaxis->Hide();
  34  
  35  // Use a worldmap as the background and let it fill the plot area
  36  $graph->SetBackgroundImage(WORLDMAP,BGIMG_FILLPLOT);
  37  
  38  // Setup a nice title with a striped bevel background
  39  $graph->title->Set("Pushpin graph");
  40  $graph->title->SetFont(FF_ARIAL,FS_BOLD,16);
  41  $graph->title->SetColor('white');
  42  $graph->SetTitleBackground('darkgreen',TITLEBKG_STYLE1,TITLEBKG_FRAME_BEVEL);
  43  $graph->SetTitleBackgroundFillStyle(TITLEBKG_FILLSTYLE_HSTRIPED,'blue','darkgreen');
  44  
  45  // Finally create the lineplot
  46  $lp = new LinePlot($datay,$datax);
  47  $lp->SetColor('lightgray');
  48  
  49  // We want the markers to be an image
  50  $lp->mark->SetType(MARK_IMG_PUSHPIN,'blue',0.6);
  51  
  52  // Install the Y-X callback for the markers
  53  $lp->mark->SetCallbackYX('markCallback');
  54  
  55  // ...  and add it to the graph
  56  $graph->Add($lp);    
  57  
  58  // .. and output to browser
  59  $graph->Stroke();
  60  
  61  ?>
  62  
  63