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[rails.git] / public / javascripts / map.js

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index a52cd0a7047dcd43006ae2bd68466b5d8e64affe..c63461fe203be6c6559464f2c06f649e935ada0d 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -57,9 +57,9 @@ function createMap(divName, options) {
 
    var nonamekey = nonamekeys[document.domain];
    var noname = new OpenLayers.Layer.OSM("NoName", [
-      "http://a.tile.cloudmade.com/" + nonamekey + "/3/256/",
-      "http://b.tile.cloudmade.com/" + nonamekey + "/3/256/",
-      "http://c.tile.cloudmade.com/" + nonamekey + "/3/256/"
+      "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,
@@ -74,6 +74,7 @@ function createMap(divName, options) {
    map.addLayer(maplint);
 
    var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
+
    markers = new OpenLayers.Layer.Markers("Markers", {
       displayInLayerSwitcher: false,
       numZoomLevels: numZoomLevels,
@@ -83,17 +84,6 @@ function createMap(divName, options) {
       projection: "EPSG:900913"
    });
    map.addLayer(markers);
-   
-   vectors = new OpenLayers.Layer.Vector("Vectors", {
-      displayInLayerSwitcher: false,
-      numZoomLevels: numZoomLevels,
-      maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
-      maxResolution: 156543,
-      units: "m",
-      projection: "EPSG:900913"
-   });
-   map.addLayer(vectors);
-   
 
    return map;
 }
@@ -118,16 +108,59 @@ function addMarkerToMap(position, icon, description) {
    return marker;
 }
 
-function addBoxToMap(boxbounds) {      
-   box = new OpenLayers.Feature.Vector(
-            boxbounds.toGeometry().transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject()) );
+function addObjectToMap(url, zoom, callback) {
+   var layer = new OpenLayers.Layer.GML("Objects", url, {
+      format: OpenLayers.Format.OSM,
+      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
+   });
    
-   box.style = {
-         'strokeWidth': 3,
-         'strokeColor': '#0000ff',
-         'fillOpacity': 0,
-       };
    vectors.addFeatures(box);
+
    return box;
 }