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site/jpgraph/Examples/comb90dategraphex01.php 2.65 KB
8ec98c9f   Guillaume   MAJ
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  <?php // content="text/plain; charset=utf-8"
  require_once ('jpgraph/jpgraph.php');
  require_once ('jpgraph/jpgraph_line.php');
  require_once ('jpgraph/jpgraph_date.php');
  require_once ('jpgraph/jpgraph_mgraph.php');
  
  // Setup some fake data to simulate some wind speed and direction
  
  DEFINE('NDATAPOINTS',420);
  DEFINE('SAMPLERATE',300);
  $start = time();
  $end = $start+NDATAPOINTS*SAMPLERATE;
  $data = array();
  $xdata = array();
  $data_winddirection[0] = rand(100,200);
  $data_windspeed[0] = rand(7,10);
  for( $i=0; $i < NDATAPOINTS-1; ++$i ) {
      $data_winddirection[$i+1] = $data_winddirection[$i] + rand(-4,4);
      if($data_winddirection[$i+1] < 0 || $data_winddirection[$i+1] > 359)
          $data_winddirection[$i+1] = 0;
  
      $data_windspeed[$i+1] = $data_windspeed[$i] + rand(-2,2);
      if($data_windspeed[$i+1] < 0 )
          $data_windspeed[$i+1] = 0;
  
      $xdata[$i] = $start + $i * SAMPLERATE;
  }
  $xdata[$i] = $start + $i * SAMPLERATE;
  
  
  // Setup the Wind direction graph
  $graph = new Graph(300,800);
  $graph->clearTheme();
  $graph->SetMarginColor('lightgray:1.7');
  $graph->SetScale('datlin',0,360);
  $graph->Set90AndMargin(50,30,60,30);
  $graph->SetFrame(true,'white',0);
  $graph->SetBox();
  
  $graph->title->Set('Wind direction');
  $graph->title->SetFont(FF_ARIAL,FS_BOLD,14);
  $graph->title->SetMargin(10);
  
  $graph->xaxis->SetFont(FF_ARIAL,FS_NORMAL,9);
  $graph->xaxis->scale->SetDateFormat('h:i');
  $graph->xgrid->Show();
  
  $graph->yaxis->SetLabelAngle(45);
  $graph->yaxis->SetFont(FF_ARIAL,FS_NORMAL,9);
  $graph->yaxis->SetLabelMargin(0);
  $graph->yaxis->scale->SetAutoMin(0);
  
  $line = new LinePlot($data_winddirection,$xdata);
  $line->SetStepStyle();
  $line->SetColor('blue');
  
  $graph->Add($line);
  
  // Setup the wind speed graph
  $graph2 = new Graph(300,800);
  $graph2->clearTheme();
  $graph2->SetScale('datlin');
  $graph2->Set90AndMargin(50,30,60,30);
  $graph2->SetMarginColor('lightgray:1.7');
  $graph2->SetFrame(true,'white',0);
  $graph2->SetBox();
  
  $graph2->title->Set('Windspeed');
  $graph2->title->SetFont(FF_ARIAL,FS_BOLD,14);
  $graph2->title->SetMargin(10);
  
  $graph2->xaxis->SetFont(FF_ARIAL,FS_NORMAL,9);
  $graph2->xaxis->scale->SetDateFormat('h:i');
  $graph2->xgrid->Show();
  
  $graph2->yaxis->SetLabelAngle(45);
  $graph2->yaxis->SetFont(FF_ARIAL,FS_NORMAL,9);
  $graph2->yaxis->SetLabelMargin(0);
  $graph2->yaxis->scale->SetAutoMin(0);
  
  $line2 = new LinePlot($data_windspeed,$xdata);
  $line2->SetStepStyle();
  $line2->SetColor('red');
  
  $graph2->Add($line2);
  
  //-----------------------
  // Create a multigraph
  //----------------------
  $mgraph = new MGraph();
  $mgraph->SetMargin(2,2,2,2);
  $mgraph->SetFrame(true,'darkgray',2);
  $mgraph->SetFillColor('lightgray');
  $mgraph->Add($graph);
  $mgraph->Add($graph2,300,0);
  $mgraph->Stroke();
  
  ?>