X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/25885677e277cc5def58fdd31e83fb474a9565a3..1288a89bdcb1299d8dded7b24c8afce0c4dac7b8:/public/javascripts/map.js

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index 9a834593d..f79e3ae31 100644
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -1,14 +1,29 @@
+var epsg4326 = new OpenLayers.Projection("EPSG:4326");
 var map;
 var markers;
+var vectors;
 var popup;
 
+var nonamekeys = {
+   'openstreetmap.org': '2f59745a6b525b4ebdb100891d5b6711',
+   'www.openstreetmap.org': 'fd093e52f0965d46bb1c6c6281022199',
+   'openstreetmap.com': '4c60e7f5f31c576a9bb8da71c8d61152',
+   'www.openstreetmap.com': '142f25a0770a51a9a400b3513834a199',
+   'openstreetmap.net': '687c58fd1d715596bfc94abe653d8ac0',
+   'www.openstreetmap.net': '0bd1654141c85d30b9c2ccdb5302f2e4'
+};
+
 OpenLayers._getScriptLocation = function () {
+  // Should really have this file as an erb, so that this can return
+  // the real rails root
    return "/openlayers/";
 }
 
-function createMap(divName) {
+function createMap(divName, options) {
+   options = options || {};
+
    map = new OpenLayers.Map(divName, {
-      controls: [
+      controls: options.controls || [
          new OpenLayers.Control.ArgParser(),
          new OpenLayers.Control.Attribution(),
          new OpenLayers.Control.LayerSwitcher(),
@@ -16,7 +31,10 @@ function createMap(divName) {
          new OpenLayers.Control.PanZoomBar(),
          new OpenLayers.Control.ScaleLine()
       ],
-      units: "m"
+      units: "m",
+      maxResolution: 156543.0339,
+      numZoomLevels: 20,
+      displayProjection: new OpenLayers.Projection("EPSG:4326")
    });
 
    var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
@@ -31,6 +49,24 @@ function createMap(divName) {
    });
    map.addLayer(osmarender);
 
+   var cyclemap = new OpenLayers.Layer.OSM.CycleMap("Cycle Map", {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true
+   });
+   map.addLayer(cyclemap);
+
+   var nonamekey = nonamekeys[document.domain];
+   var noname = new OpenLayers.Layer.OSM("NoName", [
+      "http://a.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png",
+      "http://b.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png",
+      "http://c.tile.cloudmade.com/" + nonamekey + "/3/256/${z}/${x}/${y}.png"
+   ], {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true,
+      numZoomLevels: 19
+   });
+   map.addLayer(noname);
+
    var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", {
       displayOutsideMaxExtent: true,
       wrapDateLine: true
@@ -38,6 +74,7 @@ function createMap(divName) {
    map.addLayer(maplint);
 
    var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
+
    markers = new OpenLayers.Layer.Markers("Markers", {
       displayInLayerSwitcher: false,
       numZoomLevels: numZoomLevels,
@@ -60,7 +97,7 @@ function getArrowIcon() {
 }
 
 function addMarkerToMap(position, icon, description) {
-   var marker = new OpenLayers.Marker(position, icon);
+   var marker = new OpenLayers.Marker(position.clone().transform(epsg4326, map.getProjectionObject()), icon);
 
    markers.addMarker(marker);
 
@@ -71,6 +108,70 @@ function addMarkerToMap(position, icon, description) {
    return marker;
 }
 
+function addObjectToMap(url, zoom, callback) {
+   var layer = new OpenLayers.Layer.GML("Objects", url, {
+      format: OpenLayers.Format.OSM,
+      style: {
+          strokeColor: "blue",
+          strokeWidth: 3,
+          strokeOpacity: 0.5,
+          fillOpacity: 0.2,
+          fillColor: "lightblue",
+          pointRadius: 6
+      },
+      projection: new OpenLayers.Projection("EPSG:4326"),
+      displayInLayerSwitcher: false
+   });
+
+   layer.events.register("loadend", layer, function() {
+      var extent;
+
+      if (this.features.length) {
+         extent = this.features[0].geometry.getBounds();
+
+         for (var i = 1; i < this.features.length; i++) {
+            extent.extend(this.features[i].geometry.getBounds());
+         }
+
+         if (zoom) {
+            if (extent) {
+               this.map.zoomToExtent(extent);
+            } else {
+               this.map.zoomToMaxExtent();
+            }
+         }
+      }
+
+      if (callback) {
+         callback(extent);
+      }
+   });
+
+   map.addLayer(layer);
+
+   layer.loadGML();
+}
+
+function addBoxToMap(boxbounds) {
+   if(!vectors) {
+     // Be aware that IE requires Vector layers be initialised on page load, and not under deferred script conditions
+     vectors = new OpenLayers.Layer.Vector("Box Layer", {
+        displayInLayerSwitcher: false
+     });
+     map.addLayer(vectors);
+   }
+   var geometry = boxbounds.toGeometry().transform(epsg4326, map.getProjectionObject());
+   var box = new OpenLayers.Feature.Vector(geometry, {}, {
+      strokeWidth: 2,
+      strokeColor: '#ee9900',
+      fillOpacity: 0
+   });
+
+   vectors.addFeatures(box);
+
+   return box;
+}
+
 function openMapPopup(marker, description) {
    closeMapPopup();
 
@@ -94,51 +195,71 @@ function removeMarkerFromMap(marker){
    markers.removeMarker(marker);
 }
 
-function getMapLayers() {
-   var layers = "";
+function removeBoxFromMap(box){
+   vectors.removeFeature(box);
+}
 
-   for (var i=0; i< this.map.layers.length; i++) {
-      var layer = this.map.layers[i];
+function getMapCenter(center, zoom) {
+   return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
+}
 
-      if (layer.isBaseLayer) {
-         layers += (layer == this.map.baseLayer) ? "B" : "0";
-      } else {
-         layers += (layer.getVisibility()) ? "T" : "F";
-      }
-   }
+function setMapCenter(center, zoom) {
+   zoom = parseInt(zoom);
+   var numzoom = map.getNumZoomLevels();
+   if (zoom >= numzoom) zoom = numzoom - 1;
+   map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom);
+}
 
-   return layers;
+function setMapExtent(extent) {
+   map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
 }
 
-function setMapLayers(layers) {
-   for (var i=0; i < layers.length; i++) {
-      var layer = map.layers[i];
-      var c = layers.charAt(i);
+function getMapExtent() {
+   return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
+}
 
-      if (c == "B") {
-         map.setBaseLayer(layer);
-      } else if ( (c == "T") || (c == "F") ) {
-         layer.setVisibility(c == "T");
-      }
-   }
+function getEventPosition(event) {
+   return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
 }
 
-function mercatorToLonLat(merc) {
-   var lon = (merc.lon / 20037508.34) * 180;
-   var lat = (merc.lat / 20037508.34) * 180;
+function getMapLayers() {
+   var layerConfig = "";
+
+   for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) {
+      layerConfig += layers[i] == map.baseLayer ? "B" : "0";
+   }
 
-   lat = 180/Math.PI * (2 * Math.atan(Math.exp(lat * Math.PI / 180)) - Math.PI / 2);
+   for (var layers = map.getLayersBy("isBaseLayer", false), i = 0; i < layers.length; i++) {
+      layerConfig += layers[i].getVisibility() ? "T" : "F";
+   }
 
-   return new OpenLayers.LonLat(lon, lat);
+   return layerConfig;
 }
 
-function lonLatToMercator(ll) {
-   var lon = ll.lon * 20037508.34 / 180;
-   var lat = Math.log(Math.tan((90 + ll.lat) * Math.PI / 360)) / (Math.PI / 180);
+function setMapLayers(layerConfig) {
+   var l = 0;
 
-   lat = lat * 20037508.34 / 180;
+   for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) {
+      var c = layerConfig.charAt(l++);
 
-   return new OpenLayers.LonLat(lon, lat);
+      if (c == "B") {
+         map.setBaseLayer(layers[i]);
+      }
+   }
+
+   while (layerConfig.charAt(l) == "B" || layerConfig.charAt(l) == "0") {
+      l++;
+   }
+
+   for (var layers = map.getLayersBy("isBaseLayer", false), i = 0; i < layers.length; i++) {
+      var c = layerConfig.charAt(l++);
+
+      if (c == "T") {
+         layers[i].setVisibility(true);
+      } else if(c == "F") {
+         layers[i].setVisibility(false);
+      }
+   }
 }
 
 function scaleToZoom(scale) {