X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/48a3a317bc2100f6952e78462087bbab29cee635..afe8dd51ece21325eea8a108515b9426764de5b2:/public/javascripts/map.js diff --git a/public/javascripts/map.js b/public/javascripts/map.js index 71f5b8ff8..608f4c264 100644 --- a/public/javascripts/map.js +++ b/public/javascripts/map.js @@ -1,61 +1,101 @@ +var epsg4326 = new OpenLayers.Projection("EPSG:4326"); var map; var markers; var popup; -function createMap(divName, centre, zoom) { - 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); - map.addControl(new OpenLayers.Control.LayerSwitcher()); - map.setCenter(centre, zoom); + 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); 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) { - if (markers == null) { - markers = new OpenLayers.Layer.Markers("markers"); - map.addLayer(markers); - } - - var marker = new OpenLayers.Marker(position, icon); + var marker = new OpenLayers.Marker(position.clone().transform(epsg4326, map.getProjectionObject()), icon); markers.addMarker(marker); @@ -67,19 +107,12 @@ function addMarkerToMap(position, icon, description) { } function openMapPopup(marker, description) { -// var box = document.createElement("div"); -// box.innerHTML = description; -// box.style.display = 'none'; -// box.style.width = "200px"; -// document.body.appendChild(box); - closeMapPopup(); - popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat, - new OpenLayers.Size(200, 50), - "

" + description + "

", - 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; @@ -96,22 +129,67 @@ function removeMarkerFromMap(marker){ markers.removeMarker(marker); } -function mercatorToLonLat(merc) { - var lon = (merc.lon / 20037508.34) * 180; - var lat = (merc.lat / 20037508.34) * 180; +function getMapCenter(center, zoom) { + return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326); +} + +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); +} + +function setMapExtent(extent) { + map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject())); +} + +function getMapExtent(extent) { + return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326); +} + +function getEventPosition(event) { + return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326); +} + +function getMapLayers() { + var layerConfig = ""; + + for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) { + layerConfig += layers[i] == map.baseLayer ? "B" : "0"; + } - lat = 180/Math.PI * (2 * Math.atan(Math.exp(lat * Math.PI / 180)) - Math.PI / 2); + 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; + + for (var layers = map.getLayersBy("isBaseLayer", true), i = 0; i < layers.length; i++) { + var c = layerConfig.charAt(l++); - lat = lat * 20037508.34 / 180; + if (c == "B") { + map.setBaseLayer(layers[i]); + } + } - return new OpenLayers.LonLat(lon, lat); + 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) {