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Add and Remove operations for between stops
Add and Remove operations for between stops

file:b/betweenpoint.add.php (new)
  <?php
  /*
  * GeoPo Encode in PHP
  * @author : Shintaro Inagaki
  * @param $location (Array)
  * @return $geopo (String)
  */
  function geopoEncode($lat, $lng)
  {
  // 64characters (number + big and small letter + hyphen + underscore)
  $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
 
  $geopo = "";
  $scale = 7;
 
  // Change a degree measure to a decimal number
  $lat = ($lat + 90) / 180 * pow(8, 10);
  $lng = ($lng + 180) / 360 * pow(8, 10);
  // Compute a GeoPo code from head and concatenate
  for ($i = 0; $i < $scale; $i++) {
  $geopo .= substr($chars, floor($lat / pow(8, 9 - $i) % 8) + floor($lng / pow(8, 9 - $i) % 8) * 8, 1);
  }
  return $geopo;
  }
 
 
  $conn = pg_connect("dbname=bus user=postgres password=snmc");
  if (!$conn) {
  echo "An error occured.\n";
  exit;
  }
  if ($_REQUEST['newlatlng']) {
  $latlng = explode(";", $_REQUEST['newlatlng']);
  $lat = (float)$latlng[0];
  $lng = (float)$latlng[1];
 
  $geoPo = geopoEncode($lat, $lng);
  $nodelat = (int)($lat * 10000000);
  $nodelon = (int)($lng * 10000000);
  echo($nodelat . "," . $nodelon . "=$geoPo<br>");
  $sql = "INSERT INTO stops (geohash,lat,lng) VALUES ('$geoPo', '$nodelat', '$nodelon')";
  $result = pg_query($conn, $sql);
  if (!$result) {
  echo("Error in SQL query: " . pg_last_error() . "<br>\n");
  } else {
  echo "Inserted new point at $geoPo <br>";
  }
  }
  flush();
  ?>
file:b/betweenpoint.delete.php (new)
  <?php
 
  $conn = pg_connect("dbname=bus user=postgres password=snmc");
  if (!$conn) {
  echo "An error occured.\n";
  exit;
  }
  if ($_REQUEST['oldgeopo']) {
 
  $sql = " DELETE from stops WHERE geohash = '{$_REQUEST['oldgeopo']}'";
  $result = pg_query($conn, $sql);
  if (!$result) {
  echo("Error in SQL query: " . pg_last_error() . "<br>\n");
  } else {
  echo "Deleted {$_REQUEST['oldgeopo']}<br>";
  }
  }
  flush();
  ?>
file:b/betweenpoint.move.php (new)
  <?php
  /*
  * GeoPo Encode in PHP
  * @author : Shintaro Inagaki
  * @param $location (Array)
  * @return $geopo (String)
  */
  function geopoEncode($lat, $lng)
  {
  // 64characters (number + big and small letter + hyphen + underscore)
  $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
 
  $geopo = "";
  $scale = 7;
 
  // Change a degree measure to a decimal number
  $lat = ($lat + 90) / 180 * pow(8, 10);
  $lng = ($lng + 180) / 360 * pow(8, 10);
  // Compute a GeoPo code from head and concatenate
  for ($i = 0; $i < $scale; $i++) {
  $geopo .= substr($chars, floor($lat / pow(8, 9 - $i) % 8) + floor($lng / pow(8, 9 - $i) % 8) * 8, 1);
  }
  return $geopo;
  }
 
  /*
  * GeoPo Decode in PHP
  * @author : Shintaro Inagaki
  * @param $geopo (String)
  * @return $location (Array)
  */
  function geopoDecode($geopo)
  {
  // 64characters (number + big and small letter + hyphen + underscore)
  $chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_";
  // Array for geolocation
  $location = array();
 
  for ($i = 0; $i < strlen($geopo); $i++) {
  // What number of character that equal to a GeoPo code (0-63)
  $order = strpos($chars, substr($geopo, $i, 1));
  // Lat/Lng plus geolocation value of scale
  $location['lat'] = $location['lat'] + floor($order % 8) * pow(8, 9 - $i);
  $location['lng'] = $location['lng'] + floor($order / 8) * pow(8, 9 - $i);
  }
 
  // Change a decimal number to a degree measure, and plus revised value that shift center of area
  $location['lat'] = $location['lat'] * 180 / pow(8, 10) + 180 / pow(8, strlen($geopo)) / 2 - 90;
  $location['lng'] = $location['lng'] * 360 / pow(8, 10) + 360 / pow(8, strlen($geopo)) / 2 - 180;
  $location['scale'] = strlen($geopo);
 
  return $location;
  }
 
  $conn = pg_connect("dbname=bus user=postgres password=snmc");
  if (!$conn) {
  echo "An error occured.\n";
  exit;
  }
  if ($_REQUEST['newlatlng']) {
  $latlng = explode(";", $_REQUEST['newlatlng']);
  $lat = (float)$latlng[0];
  $lng = (float)$latlng[1];
 
  $geoPo = geopoEncode($lat, $lng);
  $nodelat = (int)($lat * 10000000);
  $nodelon = (int)($lng * 10000000);
  echo($nodelat . "," . $nodelon . "=$geoPo<br>");
  $sql = "UPDATE stops SET geohash='$geoPo', lat='$nodelat', lng='$nodelon', name=null, suburb=null WHERE geohash = '{$_REQUEST['oldgeopo']}'";
  $result = pg_query($conn, $sql);
  if (!$result) {
  echo("Error in SQL query: " . pg_last_error() . "<br>\n");
  } else if (pg_affected_rows($result) == 0) {
  echo ("Error 0 points moved, please refresh page and try again");
  } else {
  echo $_REQUEST['oldgeopo'] . " replaced with $geoPo <br>";
  $updatedroutes = 0;
  $result_outdatedroutes = pg_query($conn, "Select * FROM between_stops where points LIKE '%" . $_REQUEST['oldgeopo'] . ";%'");
  while ($outdatedroute = pg_fetch_assoc($result_outdatedroutes)) {
  $newpoints = str_replace($_REQUEST['oldgeopo'], $geoPo, $outdatedroute['points']);
  $sql = "UPDATE between_stops set points='$newpoints' where fromlocation = '{$outdatedroute['fromlocation']}' AND tolocation = '{$outdatedroute['tolocation']}' ";
  $result = pg_query($conn, $sql);
  if (!$result) {
  echo("Error in SQL query: " . pg_last_error() . "<br>\n");
  }
  $updatedroutes++;
  }
  echo "updated $updatedroutes routes<br>";
  }
  }
  flush();
  ?>
file:a/betweenpoint.php -> file:b/betweenpoint.php
<html xmlns="http://www.w3.org/1999/xhtml"> <html xmlns="http://www.w3.org/1999/xhtml">
<head> <head>
<script src="openlayers/OpenLayers.js"></script> <script src="openlayers/OpenLayers.js"></script>
<SCRIPT TYPE="text/javascript" SRC="OpenStreetMap.js"></SCRIPT> <SCRIPT TYPE="text/javascript" SRC="OpenStreetMap.js"></SCRIPT>
<script type="text/javascript" src="jquery.1.3.2.min.js"></script> <script type="text/javascript" src="jquery.1.3.2.min.js"></script>
<script type="text/javascript"> <script type="text/javascript">
   
function init() function init()
{ {
// create the ol map object // create the ol map object
var map = new OpenLayers.Map('map'); var map = new OpenLayers.Map('map');
var osmtiles = new OpenLayers.Layer.OSM("local", "http://127.0.0.1/tiles/${z}/${x}/${y}.png") var osmtiles = new OpenLayers.Layer.OSM("local", "http://10.0.1.154/tiles/${z}/${x}/${y}.png")
// use http://open.atlas.free.fr/GMapsTransparenciesImgOver.php and http://code.google.com/p/googletilecutter/ to make tiles // use http://open.atlas.free.fr/GMapsTransparenciesImgOver.php and http://code.google.com/p/googletilecutter/ to make tiles
markers = new OpenLayers.Layer.Markers("Between Stop Markers"); markers = new OpenLayers.Layer.Markers("Between Stop Markers");
  //hanlde mousedown on regions that are not points by reporting latlng
  OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {
  defaultHandlerOptions: {
  'single': true,
  'double': false,
  'pixelTolerance': 0,
  'stopSingle': false,
  'stopDouble': false
  },
   
  initialize: function(options) {
  this.handlerOptions = OpenLayers.Util.extend(
  {}, this.defaultHandlerOptions
  );
  OpenLayers.Control.prototype.initialize.apply(
  this, arguments
  );
  this.handler = new OpenLayers.Handler.Click(
  this, {
  'click': this.trigger
  }, this.handlerOptions
  );
  },
   
  trigger: function(e) {
  var lonlat = map.getLonLatFromViewPortPx(e.xy).transform(
  new OpenLayers.Projection("EPSG:900913"),
  new OpenLayers.Projection("EPSG:4326")
  );
  $('form input[name="newlatlng"]').val(lonlat.lat + ";" + lonlat.lon );
  }
   
  });
  var click = new OpenLayers.Control.Click();
  map.addControl(click);
  click.activate();
<?php <?php
$conn = pg_connect("dbname=bus user=postgres password=snmc"); $conn = pg_connect("dbname=bus user=postgres password=snmc");
if (!$conn) { if (!$conn) {
echo "An error occured.\n"; echo "An error occured.\n";
exit; exit;
} }
$result_stops = pg_query($conn, "Select * FROM stops"); $result_stops = pg_query($conn, "Select * FROM stops");
while ($stop = pg_fetch_assoc($result_stops)) { while ($stop = pg_fetch_assoc($result_stops)) {
echo 'marker = new OpenLayers.Marker(new OpenLayers.LonLat(' . ($stop['lng'] / 10000000) . "," . ($stop['lat'] / 10000000) . ') echo 'marker = new OpenLayers.Marker(new OpenLayers.LonLat(' . ($stop['lng'] / 10000000) . "," . ($stop['lat'] / 10000000) . ')
.transform( .transform(
new OpenLayers.Projection("EPSG:4326"), // transform from WGS 1984 new OpenLayers.Projection("EPSG:4326"), // transform from WGS 1984
new OpenLayers.Projection("EPSG:900913") // to Spherical Mercator Projection new OpenLayers.Projection("EPSG:900913") // to Spherical Mercator Projection
));'; ));';
echo ' echo '
marker.id="' . $stop['geohash'] . '"; marker.id="' . $stop['geohash'] . '";
markers.addMarker(marker); markers.addMarker(marker);
marker.events.register("mousedown", marker, function() { marker.events.register("mousedown", marker, function() {
   
document.getElementById("between_points").innerHTML += this.id+";"; document.getElementById("between_points").innerHTML += this.id+";";
  $(\'form input[name="oldgeopo"]\').val(this.id);
}); });
'; ';
} }
?> ?>
var timeicon = new OpenLayers.Icon("http://maps.google.com/mapfiles/kml/pushpin/grn-pushpin.png",new OpenLayers.Size(32,32)); var timeicon = new OpenLayers.Icon("http://maps.google.com/mapfiles/kml/pushpin/grn-pushpin.png",new OpenLayers.Size(32,32));
var timepoints = new OpenLayers.Layer.GeoRSS("Timing Points", "displaytimepoints.georss.php", { icon: timeicon }); var timepoints = new OpenLayers.Layer.GeoRSS("Timing Points", "displaytimepoints.georss.php", { icon: timeicon });
   
map.addLayers([osmtiles, markers,timepoints]); map.addLayers([osmtiles, markers,timepoints]);
map.addControl(new OpenLayers.Control.LayerSwitcher()); map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToExtent(markers.getDataExtent()); map.zoomToExtent(markers.getDataExtent());
} }
</script> </script>
<script type="text/javascript"> <script type="text/javascript">
function submitBetween () { function submitBetween () {
$.post("betweenpoint.submit.php", $("#inputform").serialize(