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site/jpgraph/src/Examples/contourex04.php 1.36 KB
d72ac078   Guillaume   Ajout graphe V1.1
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  <?php // content="text/plain; charset=utf-8"
  // Contour plot example 04
  
  require_once ('jpgraph/jpgraph.php');
  require_once ('jpgraph/jpgraph_contour.php');
  
  $data = array(
      array (12,12,10,10,8,4),
      array (10,10,8,14,10,3),
      array (7,7,13,17,12,8),
      array (4,5,8,12,7,6),
      array (10,8,7,8,10,4));
  
  // Setup a basic graph context with some generous margins to be able
  // to fit the legend
  $graph = new Graph(500,380);
  $graph->SetMargin(40,140,60,40);
  
  $graph->title->Set("Example of interpolated contour plot");
  $graph->title->SetFont(FF_ARIAL,FS_BOLD,14);
  $graph->title->SetMargin(10);
  
  // For contour plots it is custom to use a box style ofr the axis
  $graph->legend->SetPos(0.05,0.5,'right','center');
  $graph->SetScale('intint');
  
  // Setup axis and grids
  $graph->SetAxisStyle(AXSTYLE_BOXOUT);
  $graph->xgrid->SetLineStyle('dashed');
  $graph->xgrid->Show(true);
  $graph->ygrid->SetLineStyle('dashed');
  $graph->ygrid->Show(true);
  
  // A simple contour plot with 10 isobar lines and flipped Y-coordinates
  // Make the data smoother by interpolate the original matrice by a factor of two
  // which will make each grid cell half the original size
  $cp = new ContourPlot($data,10, 2);
  
  $cp->UseHighContrastColor(true);
  
  // Display the legend
  $cp->ShowLegend();
  
  // Make the isobar lines slightly thicker
  $graph->Add($cp);
  
  // ... and send the graph back to the browser
  $graph->Stroke();
  
  ?>