Stop Browser Map
[busui.git] / labs / stopBrowser.kml.php
blob:a/labs/stopBrowser.kml.php -> blob:b/labs/stopBrowser.kml.php
  <?php
  header('Content-type: application/vnd.google-earth.kml+xml');
  //http://wiki.openstreetmap.org/wiki/OpenLayers_Dynamic_KML
   
  // Creates the KML/XML Document.
  $dom = new DOMDocument('1.0', 'UTF-8');
   
  // Creates the root KML element and appends it to the root document.
  $node = $dom->createElementNS('http://earth.google.com/kml/2.1', 'kml');
  $parNode = $dom->appendChild($node);
   
  // Creates a KML Document element and append it to the KML element.
  $dnode = $dom->createElement('Document');
  $docNode = $parNode->appendChild($dnode);
   
   
  $bbox = $_GET['bbox']; // get the bbox param from google earth
  list($bbox_south, $bbox_west, $bbox_north,$bbox_east) = explode(",", $bbox); // west, south, east, north
   
  include ('../include/common.inc.php');
  $debugOkay = Array();
  $contents = getNearbyStops( (($bbox_west+ $bbox_east) /2), ($bbox_south + $bbox_north)/2 ,50, 3000);
  foreach ($contents as $stop) {
  $description = 'http://bus.lambdacomplex.org/' . 'stop.php?stopid=' . $stop['stop_id'] ." <br>";
  $trips = getStopTripsWithTimes($stop['stop_id'], "", "", "", 3);
  if ($trips) {
  foreach ($trips as $key => $row) {
  if ($key < 3) {
  $description .= $row['route_short_name'] . ' ' . $row['route_long_name'] . ' @ ' . $row['arrival_time'] . "<br>";
  }
  }
  } else {
  $description .= "No more trips today";
  }
  // Creates a Placemark and append it to the Document.
  $node = $dom->createElement('Placemark');
  $placeNode = $docNode->appendChild($node);
   
  // Creates an id attribute and assign it the value of id column.
  $placeNode->setAttribute('id', 'placemark' . $stop['stop_id']);
   
  // Create name, and description elements and assigns them the values of the name and address columns from the results.
  $nameNode = $dom->createElement('name',htmlentities($stop['stop_name']));
  $descriptionNode = $dom->createElement('description',$description);
  $placeNode->appendChild($nameNode);
  $placeNode->appendChild($descriptionNode);
   
  // Creates a Point element.
  $pointNode = $dom->createElement('Point');
  $placeNode->appendChild($pointNode);
   
  // Creates a coordinates element and gives it the value of the lng and lat columns from the results.
  $coorStr = $stop['stop_lon'] . ',' . $stop['stop_lat'];
  $coorNode = $dom->createElement('coordinates', $coorStr);
  $pointNode->appendChild($coorNode);
  }
   
   
  $kmlOutput = $dom->saveXML();
  echo $kmlOutput;
  ?>