+var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var map;
var markers;
+var vectors;
var popup;
-function createMap(divName) {
- OpenLayers.Util.onImageLoadError = function() {
- this.src = OpenLayers.Util.getImagesLocation() + "404.png";
- }
-
- map = new OpenLayers.Map(divName,
- { maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
- numZoomLevels: 19,
- maxResolution: 156543,
- units: 'm',
- projection: "EPSG:41001" });
+var nonamekeys = {
+ 'openstreetmap.org': '2f59745a6b525b4ebdb100891d5b6711',
+ 'www.openstreetmap.org': 'fd093e52f0965d46bb1c6c6281022199',
+ 'openstreetmap.com': '4c60e7f5f31c576a9bb8da71c8d61152',
+ 'www.openstreetmap.com': '142f25a0770a51a9a400b3513834a199',
+ 'openstreetmap.net': '687c58fd1d715596bfc94abe653d8ac0',
+ 'www.openstreetmap.net': '0bd1654141c85d30b9c2ccdb5302f2e4'
+};
+
+OpenLayers._getScriptLocation = function () {
+ // Should really have this file as an erb, so that this can return
+ // the real rails root
+ return "/openlayers/";
+}
- var mapnik = new OpenLayers.Layer.TMS("Mapnik",
- "http://tile.openstreetmap.org/",
- { type: 'png', getURL: getTileURL, displayOutsideMaxExtent: true });
+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.PanZoomBar(),
+ new OpenLayers.Control.ScaleLine()
+ ],
+ units: "m",
+ maxResolution: 156543.0339,
+ numZoomLevels: 20,
+ displayProjection: new OpenLayers.Projection("EPSG:4326")
+ });
+
+ var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true
+ });
map.addLayer(mapnik);
- var osmarender = new OpenLayers.Layer.TMS("Osmarender",
- "http://dev.openstreetmap.org/~ojw/Tiles/tile.php/",
- { type: 'png', getURL: getTileURL, 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 cyclemap = new OpenLayers.Layer.OSM.CycleMap("Cycle Map", {
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true
+ });
+ map.addLayer(cyclemap);
+
+ 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/"
+ ], {
+ displayOutsideMaxExtent: true,
+ wrapDateLine: true,
+ numZoomLevels: 19
+ });
+ map.addLayer(noname);
+
+ 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());
-
+
return map;
}
-function getTileURL(bounds) {
- var res = this.map.getResolution();
- var x = Math.round((bounds.left - this.maxExtent.left) / (res * this.tileSize.w));
- var y = Math.round((this.maxExtent.top - bounds.top) / (res * this.tileSize.h));
- var z = this.map.getZoom();
- var limit = Math.pow(2, z);
+function getArrowIcon() {
+ var size = new OpenLayers.Size(25, 22);
+ var offset = new OpenLayers.Pixel(-30, -27);
+ var icon = new OpenLayers.Icon("/images/arrow.png", size, offset);
- if (y < 0 || y >= limit)
- {
- return null;
- }
- else
- {
- x = ((x % limit) + limit) % limit;
-
- return this.url + z + "/" + x + "/" + y + "." + this.type;
- }
+ return icon;
}
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);
- markers.setVisibility(true);
if (description) {
marker.events.register("click", marker, function() { openMapPopup(marker, description) });
return marker;
}
-function openMapPopup(marker, description) {
-// var box = document.createElement("div");
-// box.innerHTML = description;
-// box.style.display = 'none';
-// box.style.width = "200px";
-// document.body.appendChild(box);
+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
+ });
+
+ vectors.addFeatures(box);
+
+ return box;
+}
+function openMapPopup(marker, description) {
closeMapPopup();
- popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat,
- new OpenLayers.Size(200, 50),
- "<p>" + description + "</p>",
- marker.icon, true);
+ popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat, null,
+ description, marker.icon, true);
popup.setBackgroundColor("#E3FFC5");
+ popup.autoSize = true;
map.addPopup(popup);
return popup;
markers.removeMarker(marker);
}
-function getMapLayers() {
- var layers = "";
+function removeBoxFromMap(box){
+ vectors.removeFeature(box);
+}
- for (var i=0; i< this.map.layers.length; i++) {
- var layer = this.map.layers[i];
+function getMapCenter(center, zoom) {
+ return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
+}
- if (layer.isBaseLayer) {
- layers += (layer == this.map.baseLayer) ? "B" : "0";
- } else {
- layers += (layer.getVisibility()) ? "T" : "F";
- }
- }
+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);
+}
- return layers;
+function setMapExtent(extent) {
+ map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
}
-function setMapLayers(layers) {
- for (var i=0; i < layers.length; i++) {
- var layer = map.layers[i];
- var c = layers.charAt(i);
+function getMapExtent() {
+ return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
+}
- if (c == "B") {
- map.setBaseLayer(layer);
- } else if ( (c == "T") || (c == "F") ) {
- layer.setVisibility(c == "T");
- }
- }
+function getEventPosition(event) {
+ return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
}
-function mercatorToLonLat(merc) {
- var lon = (merc.lon / 20037508.34) * 180;
- var lat = (merc.lat / 20037508.34) * 180;
+function getMapLayers() {
+ var layerConfig = "";
- 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++) {
+ 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 new OpenLayers.LonLat(lon, lat);
+ return layerConfig;
}
-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);
+function setMapLayers(layerConfig) {
+ var l = 0;
- lat = lat * 20037508.34 / 180;
+ 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]);
+ }
+ }
+
+ while (layerConfig.charAt(l) == "B" || layerConfig.charAt(l) == "0") {
+ l++;
+ }
+
+ for (var layers = map.getLayersBy("isBaseLayer", false), i = 0; i < layers.length; i++) {
+ var c = layerConfig.charAt(l++);
+
+ if (c == "T") {
+ layers[i].setVisibility(true);
+ } else if(c == "F") {
+ layers[i].setVisibility(false);
+ }
+ }
}
function scaleToZoom(scale) {
projects / rails.git / blobdiff