+var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var map;
var markers;
+var vectors;
var popup;
-OpenLayers._getScriptLocation = function () {
- return "/openlayers/";
-}
-
-function createMap(divName) {
- map = new OpenLayers.Map(divName);
+var nonamekeys = {
+ 'openstreetmap.org': '2f59745a6b525b4ebdb100891d5b6711',
+ 'www.openstreetmap.org': 'fd093e52f0965d46bb1c6c6281022199',
+ 'openstreetmap.com': '4c60e7f5f31c576a9bb8da71c8d61152',
+ 'www.openstreetmap.com': '142f25a0770a51a9a400b3513834a199',
+ 'openstreetmap.net': '687c58fd1d715596bfc94abe653d8ac0',
+ 'www.openstreetmap.net': '0bd1654141c85d30b9c2ccdb5302f2e4'
+};
+
+function createMap(divName, options) {
+ options = options || {};
+
+ map = new OpenLayers.Map(divName, {
+ controls: options.controls || [
+ new OpenLayers.Control.ArgParser(),
+ new OpenLayers.Control.Attribution(),
+ new OpenLayers.Control.LayerSwitcher(),
+ new OpenLayers.Control.Navigation(),
+ new OpenLayers.Control.PanZoom(),
+ new OpenLayers.Control.PanZoomBar(),
+ new OpenLayers.Control.ScaleLine({geodesic: true})
+ ],
+ units: "m",
+ maxResolution: 156543.0339,
+ numZoomLevels: 20,
+ displayProjection: new OpenLayers.Projection("EPSG:4326")
+ });
- var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { displayOutsideMaxExtent: true });
+ var mapnik = new OpenLayers.Layer.OSM.Mapnik(i18n("javascripts.map.base.mapnik"), {
+ keyid: "mapnik",
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true,
+ layerCode: "M"
+ });
map.addLayer(mapnik);
- var osmarender = new OpenLayers.Layer.OSM.Osmarender("Osmarender", { displayOutsideMaxExtent: true });
+ var osmarender = new OpenLayers.Layer.OSM.Osmarender(i18n("javascripts.map.base.osmarender"), {
+ keyid: "osmarender",
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true,
+ layerCode: "O"
+ });
map.addLayer(osmarender);
- var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", { displayOutsideMaxExtent: true });
- map.addLayer(maplint);
+ var cyclemap = new OpenLayers.Layer.OSM.CycleMap(i18n("javascripts.map.base.cycle_map"), {
+ keyid: "cyclemap",
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true,
+ layerCode: "C"
+ });
+ map.addLayer(cyclemap);
+
+ var nonamekey = nonamekeys[document.domain];
+ var noname = new OpenLayers.Layer.OSM(i18n("javascripts.map.base.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,
+ layerCode: "N"
+ });
+ map.addLayer(noname);
var numZoomLevels = Math.max(mapnik.numZoomLevels, osmarender.numZoomLevels);
- markers = new OpenLayers.Layer.Markers("Markers", {
- displayInLayerSwitcher: false, numZoomLevels: 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:41001"
+ projection: "EPSG:900913"
});
map.addLayer(markers);
- map.addControl(new OpenLayers.Control.LayerSwitcher());
- map.addControl(new OpenLayers.Control.KeyboardDefaults());
-
return map;
}
}
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);
if (description) {
- marker.events.register("click", marker, function() { openMapPopup(marker, description) });
+ marker.events.register("mouseover", marker, function() { openMapPopup(marker, description) });
+ marker.events.register("mouseout", marker, function() { closeMapPopup() });
}
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, id, outline) {
+ 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("Boxes", {
+ displayInLayerSwitcher: false
+ });
+ map.addLayer(vectors);
+ }
+ var geometry;
+ if (outline) {
+ vertices = boxbounds.toGeometry().getVertices();
+ vertices.push(new OpenLayers.Geometry.Point(vertices[0].x, vertices[0].y));
+ geometry = new OpenLayers.Geometry.LineString(vertices).transform(epsg4326, map.getProjectionObject());
+ } else {
+ geometry = boxbounds.toGeometry().transform(epsg4326, map.getProjectionObject());
+ }
+ var box = new OpenLayers.Feature.Vector(geometry, {}, {
+ strokeWidth: 2,
+ strokeColor: '#ee9900',
+ fillOpacity: 0
+ });
+ box.fid = id;
+
+ vectors.addFeatures(box);
+
+ return box;
+}
+
function openMapPopup(marker, description) {
closeMapPopup();
- popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat,
- sizeMapPopup(description),
- "<p style='padding-right: 28px'>" + description + "</p>",
- marker.icon, true);
+ popup = new OpenLayers.Popup.FramedCloud("popup", marker.lonlat, null,
+ description, marker.icon, true);
popup.setBackgroundColor("#E3FFC5");
map.addPopup(popup);
}
}
-function sizeMapPopup(text) {
- var box = document.createElement("div");
+function removeMarkerFromMap(marker){
+ markers.removeMarker(marker);
+}
+
+function removeBoxFromMap(box){
+ vectors.removeFeature(box);
+}
- box.innerHTML = text;
- box.style.visibility = "hidden";
- box.style.position = "absolute";
- box.style.top = "0px";
- box.style.left = "0px";
- box.style.width = "200px";
- box.style.height = "auto";
+function getMapCenter() {
+ return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
+}
- document.body.appendChild(box);
+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);
+}
- var width = box.offsetWidth;
- var height = box.offsetHeight;
+function setMapExtent(extent) {
+ map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
+}
- document.body.removeChild(box);
+function getMapExtent() {
+ return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
+}
- return new OpenLayers.Size(width + 30, height + 24);
+function getMapZoom() {
+ return map.getZoom();
}
-function removeMarkerFromMap(marker){
- markers.removeMarker(marker);
+function getEventPosition(event) {
+ return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
}
function getMapLayers() {
- var layers = "";
+ var layerConfig = "";
- for (var i=0; i< this.map.layers.length; i++) {
- var layer = this.map.layers[i];
-
- if (layer.isBaseLayer) {
- layers += (layer == this.map.baseLayer) ? "B" : "0";
- } else {
- layers += (layer.getVisibility()) ? "T" : "F";
+ for (var i = 0; i < map.layers.length; i++) {
+ if (map.layers[i].layerCode && map.layers[i].getVisibility()) {
+ layerConfig += map.layers[i].layerCode;
}
}
- return layers;
+ return layerConfig;
}
-function setMapLayers(layers) {
- for (var i=0; i < layers.length; i++) {
- var layer = map.layers[i];
- var c = layers.charAt(i);
+function setMapLayers(layerConfig) {
+ if (layerConfig.charAt(0) == "B" || layerConfig.charAt(0) == "0") {
+ var l = 0;
+
+ for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) {
+ var c = layerConfig.charAt(l++);
- if (c == "B") {
- map.setBaseLayer(layer);
- } else if ( (c == "T") || (c == "F") ) {
- layer.setVisibility(c == "T");
+ if (c == "B") {
+ map.setBaseLayer(layers[i]);
+ } else {
+ map.layers[i].setVisibility(false);
+ }
+ }
+ } else {
+ for (var i = 0; i < map.layers.length; i++) {
+ if (map.layers[i].layerCode) {
+ if (layerConfig.indexOf(map.layers[i].layerCode) >= 0) {
+ if (map.layers[i].isBaseLayer) {
+ map.setBaseLayer(map.layers[i]);
+ } else {
+ map.layers[i].setVisibility(true);
+ }
+ } else {
+ map.layers[i].setVisibility(false);
+ }
+ }
}
}
}
-function mercatorToLonLat(merc) {
- var lon = (merc.lon / 20037508.34) * 180;
- var lat = (merc.lat / 20037508.34) * 180;
-
- lat = 180/Math.PI * (2 * Math.atan(Math.exp(lat * Math.PI / 180)) - Math.PI / 2);
-
- return new OpenLayers.LonLat(lon, lat);
-}
-
-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);
-
- lat = lat * 20037508.34 / 180;
-
- 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);
}
projects / rails.git / blobdiff