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site/jpgraph/Examples/pushpinex1.php 1.72 KB
8ec98c9f   Guillaume   MAJ
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  <?php // content="text/plain; charset=utf-8"
  require_once ('jpgraph/jpgraph.php');
  require_once ('jpgraph/jpgraph_scatter.php');
  
  DEFINE('WORLDMAP','worldmap1.jpg');
  
  function markCallback($y,$x) {
      // Return array width
      // width,color,fill color, marker filename, imgscale
      // any value can be false, in that case the default value will
      // be used.
      // We only make one pushpin another color
      if( $x == 54 ) 
  	return array(false,false,false,'red',0.8);
      else
  	return array(false,false,false,'green',0.8);
  }
  
  // Data arrays
  $datax = array(10,20,30,40,54,60,70,80);
  $datay = array(12,23,65,18,84,28,86,44);
  
  // Setup the graph
  $graph = new Graph(400,270);
  
  // We add a small 1pixel left,right,bottom margin so the plot area
  // doesn't cover the frame around the graph.
  $graph->img->SetMargin(1,1,1,1);
  $graph->SetScale('linlin',0,100,0,100);
  
  // We don't want any axis to be shown
  $graph->xaxis->Hide();
  $graph->yaxis->Hide();
  
  // Use a worldmap as the background and let it fill the plot area
  $graph->SetBackgroundImage(WORLDMAP,BGIMG_FILLPLOT);
  
  // Setup a nice title with a striped bevel background
  $graph->title->Set("Pushpin graph");
  $graph->title->SetFont(FF_ARIAL,FS_BOLD,16);
  $graph->title->SetColor('white');
  $graph->SetTitleBackground('darkgreen',TITLEBKG_STYLE1,TITLEBKG_FRAME_BEVEL);
  $graph->SetTitleBackgroundFillStyle(TITLEBKG_FILLSTYLE_HSTRIPED,'blue','darkgreen');
  
  // Finally create the scatterplot
  $sp = new ScatterPlot($datay,$datax);
  
  // We want the markers to be an image
  $sp->mark->SetType(MARK_IMG_PUSHPIN,'blue',0.6);
  
  // Install the Y-X callback for the markers
  $sp->mark->SetCallbackYX('markCallback');
  
  // ...  and add it to the graph
  $graph->Add($sp);    
  
  // .. and output to browser
  $graph->Stroke();
  
  ?>