Turn on wrapDateLine for all layers.

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

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index 0c13b016e93c0422a421e69634bb44b0444a7e43..fb952daf2bb849456952e0a91c8c1ed891a9152a 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -7,30 +7,45 @@ OpenLayers._getScriptLocation = function () {
 }
    
 function createMap(divName) {
-   map = new OpenLayers.Map(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()
+      ]
+   });
 
-   var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { displayOutsideMaxExtent: true });
+   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);
 
-   var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", { displayOutsideMaxExtent: true });
+   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,
+      displayInLayerSwitcher: false,
+      numZoomLevels: numZoomLevels,
       maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
       maxResolution: 156543,
       units: "m",
-      projection: "EPSG:41001"
+      projection: "EPSG:900913",
    });
    map.addLayer(markers);
 
-   map.addControl(new OpenLayers.Control.LayerSwitcher());
-   map.addControl(new OpenLayers.Control.KeyboardDefaults());
-
    return map;
 }
 
@@ -146,56 +161,6 @@ function lonLatToMercator(ll) {
    return new OpenLayers.LonLat(lon, lat);
 }
 
-// for interacting with the PostGIS database which uses non spherical
-// Mercator. Taken from Freemap which in turn was taken from a standard
-// algorithm off the net.
-
-function lonLatToNonSphericalMercator(ll) {
-    var custLat  = ll.lat * (Math.PI/180);
-    var a = 6378137;
-    var b = 6356752.3142;
-    var f = (a-b)/a;
-    var e = Math.sqrt(2*f-Math.pow(f,2));
-    custLat=a*Math.log(Math.tan(Math.PI/4+custLat/2)*
-        Math.pow(( (1-e*Math.sin(custLat)) / (1+e*Math.sin(custLat))),e/2));
-    custLon = ll.lon * (Math.PI/180) * 6378137;
-    return new OpenLayers.LonLat (custLon,custLat);
-}
-
-function nonSphericalMercatorToLonLat(merc) {
-    var lon_deg, lat_deg;
-    var a = 6378137.0;
-    var b = 6356752.3142;
-    var k0 = 1.0;
-    var t = 1.0 - b/a;
-    var es = 2*t - t*t;
-    var e = Math.sqrt(es);
-    lon_deg = merc.lon;
-    lat_deg = merc.lat;
-    lon_deg /= a;
-    lat_deg /= a;
-    lon_deg /= k0;
-    lat_deg = phi2(Math.exp(-lat_deg/k0), e);
-    lon_deg *= (180/M_PI);
-    lat_deg *= (180/M_PI);
-    return new OpenLayers.LonLat(lon_deg,lat_deg);
-}
-
-function phi2 (ts,e) {
-    var eccnth = 0.5*e;
-    var Phi = (PI/2) - 2.0*Math.atan(ts);
-    var dphi;
-    var i=15;
-    do {
-        var con = e*Math.sin(Phi);
-        dphi = (PI/2) - 2.0*Math.atan(ts*Math.pow((1.0-con)/(1.0+con),eccnth))
-            - Phi;
-        Phi += dphi;
-    }
-    while(Math.abs(dphi) > 0.0000000001 && --i);
-    return Phi;
-}
-
 function scaleToZoom(scale) {
    return Math.log(360.0/(scale * 512.0)) / Math.log(2.0);
 }