Merge 7744:7922 from trunk.

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

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index 9a834593d996cb1377f0e72910c4faaced68d276..2bdba6229b589b8d52ae3a96fd8e21e5d8b361d9 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -1,3 +1,4 @@
+var epsg4326 = new OpenLayers.Projection("EPSG:4326");
 var map;
 var markers;
 var popup;
@@ -6,9 +7,11 @@ OpenLayers._getScriptLocation = function () {
    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 +19,9 @@ function createMap(divName) {
          new OpenLayers.Control.PanZoomBar(),
          new OpenLayers.Control.ScaleLine()
       ],
-      units: "m"
+      units: "m",
+      maxResolution: 156543.0339,
+      numZoomLevels: 20
    });
 
    var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
@@ -31,6 +36,12 @@ function createMap(divName) {
    });
    map.addLayer(osmarender);
 
+   var cyclemap = new OpenLayers.Layer.OSM.CycleMap("Cycle Map", {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true
+   });
+   map.addLayer(cyclemap);
+
    var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", {
       displayOutsideMaxExtent: true,
       wrapDateLine: true
@@ -60,7 +71,7 @@ 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);
 
@@ -94,51 +105,60 @@ function removeMarkerFromMap(marker){
    markers.removeMarker(marker);
 }
 
-function getMapLayers() {
-   var layers = "";
+function getMapCenter(center, zoom) {
+   return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
+}
 
-   for (var i=0; i< this.map.layers.length; i++) {
-      var layer = this.map.layers[i];
+function setMapCenter(center, zoom) {
+   map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom);
+}
 
-      if (layer.isBaseLayer) {
-         layers += (layer == this.map.baseLayer) ? "B" : "0";
-      } else {
-         layers += (layer.getVisibility()) ? "T" : "F";
-      }
-   }
+function setMapExtent(extent) {
+   map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
+}
+
+function getMapExtent(extent) {
+   return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
+}
 
-   return layers;
+function getEventPosition(event) {
+   return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
 }
 
-function setMapLayers(layers) {
-   for (var i=0; i < layers.length; i++) {
-      var layer = map.layers[i];
-      var c = layers.charAt(i);
+function getMapLayers() {
+   var layerConfig = "";
 
-      if (c == "B") {
-         map.setBaseLayer(layer);
-      } else if ( (c == "T") || (c == "F") ) {
-         layer.setVisibility(c == "T");
-      }
+   for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) {
+      layerConfig += layers[i] == map.baseLayer ? "B" : "0";
    }
+
+   for (var layers = map.getLayersBy("isBaseLayer", false), i = 0; i < layers.length; i++) {
+      layerConfig += layers[i].getVisibility() ? "T" : "F";
+   }
+
+   return layerConfig;
 }
 
-function mercatorToLonLat(merc) {
-   var lon = (merc.lon / 20037508.34) * 180;
-   var lat = (merc.lat / 20037508.34) * 180;
+function setMapLayers(layerConfig) {
+   var l = 0;
 
-   lat = 180/Math.PI * (2 * Math.atan(Math.exp(lat * Math.PI / 180)) - Math.PI / 2);
+   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]);
+      }
+   }
 
-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);
+   while (layerConfig.charAt(l) == "B" || layerConfig.charAt(l) == "0") {
+      l++;
+   }
 
-   lat = lat * 20037508.34 / 180;
+   for (var layers = map.getLayersBy("isBaseLayer", false), i = 0; i < layers.length; i++) {
+      var c = layerConfig.charAt(l++);
 
-   return new OpenLayers.LonLat(lon, lat);
+      layers[i].setVisibility(c == "T");
+   }
 }
 
 function scaleToZoom(scale) {