Add a scale control to the map. Closes #51.

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

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index 0f842cf48d697e08e98fb6c60c6bb78d64d83b4b..4a23d8590ea290f528ee80b168e3b5b053587d71 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -2,25 +2,52 @@ var map;
 var markers;
 var popup;
 
-function createMap(divName) {
-   map = new OpenLayers.Map(divName,
-                            { maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
-                              maxResolution: 156543,
-                              units: 'm',
-                              projection: "EPSG:41001" });
+OpenLayers._getScriptLocation = function () {
+   return "/openlayers/";
+}
 
-   var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { displayOutsideMaxExtent: true });
+function createMap(divName) {
+   map = new OpenLayers.Map(divName, {
+      controls: [
+         new OpenLayers.Control.ArgParser(),
+         new OpenLayers.Control.Attribution(),
+         new OpenLayers.Control.LayerSwitcher(),
+         new OpenLayers.Control.Navigation(),
+         new OpenLayers.Control.PanZoomBar(),
+         new OpenLayers.Control.ScaleLine()
+      ],
+      units: "m"
+   });
+
+   var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true
+   });
    map.addLayer(mapnik);
 
-   var osmarender = new OpenLayers.Layer.OSM.Osmarender("Osmarender", { displayOutsideMaxExtent: true });
+   var osmarender = new OpenLayers.Layer.OSM.Osmarender("Osmarender", {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true
+   });
    map.addLayer(osmarender);
 
-   markers = new OpenLayers.Layer.Markers("markers", { visibility: false });
+   var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", {
+      displayOutsideMaxExtent: true,
+      wrapDateLine: true
+   });
+   map.addLayer(maplint);
+
+   var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
+   markers = new OpenLayers.Layer.Markers("Markers", {
+      displayInLayerSwitcher: false,
+      numZoomLevels: numZoomLevels,
+      maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
+      maxResolution: 156543,
+      units: "m",
+      projection: "EPSG:900913"
+   });
    map.addLayer(markers);
 
-   map.addControl(new OpenLayers.Control.LayerSwitcher());
-   map.addControl(new OpenLayers.Control.KeyboardDefaults());
-
    return map;
 }
 
@@ -36,7 +63,6 @@ function addMarkerToMap(position, icon, description) {
    var marker = new OpenLayers.Marker(position, icon);
 
    markers.addMarker(marker);
-   markers.setVisibility(true);
 
    if (description) {
       marker.events.register("click", marker, function() { openMapPopup(marker, description) });