X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/0d60c397217218dabb439a8c38cb4c84261da693..2f925b919718961b682e84dcca4fd53fed13b2c1:/public/javascripts/map.js diff --git a/public/javascripts/map.js b/public/javascripts/map.js index c0fd4bbd6..51cd9f6a5 100644 --- a/public/javascripts/map.js +++ b/public/javascripts/map.js @@ -1,3 +1,4 @@ +var epsg4326 = new OpenLayers.Projection("EPSG:4326"); var map; var markers; var popup; @@ -5,19 +6,22 @@ var popup; OpenLayers._getScriptLocation = function () { return "/openlayers/"; } - + function createMap(divName) { map = new OpenLayers.Map(divName, { controls: [ - new OpenLayers.Control.ArgParser(), + new OpenLayers.Control.ArgParser(), new OpenLayers.Control.Attribution(), new OpenLayers.Control.LayerSwitcher(), - new OpenLayers.Control.Navigation(), - new OpenLayers.Control.PanZoomBar() - ] + new OpenLayers.Control.Navigation(), + new OpenLayers.Control.PanZoomBar(), + new OpenLayers.Control.ScaleLine() + ], + maxResolution: 156543, + units: "m" }); - var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { + var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", { displayOutsideMaxExtent: true, wrapDateLine: true }); @@ -29,20 +33,14 @@ function createMap(divName) { }); map.addLayer(osmarender); - var mapnik_local = new OpenLayers.Layer.OSM("Mapnik (Local)", "http://bericote.uk.cyberscience.com/tiles/", { - displayOutsideMaxExtent: true, - wrapDateLine: true - }); - map.addLayer(mapnik_local); - - var maplint = new OpenLayers.Layer.OSM.Maplint("Maplint", { + 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", { + markers = new OpenLayers.Layer.Markers("Markers", { displayInLayerSwitcher: false, numZoomLevels: numZoomLevels, maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508), @@ -64,7 +62,7 @@ function getArrowIcon() { } 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); @@ -78,11 +76,10 @@ function addMarkerToMap(position, icon, description) { function openMapPopup(marker, description) { closeMapPopup(); - popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat, - sizeMapPopup(description), - "

" + 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; @@ -95,29 +92,24 @@ function closeMapPopup() { } } -function sizeMapPopup(text) { - var box = document.createElement("div"); - - 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"; - - document.body.appendChild(box); +function removeMarkerFromMap(marker){ + markers.removeMarker(marker); +} - var width = box.offsetWidth; - var height = box.offsetHeight; +function getMapCenter(center, zoom) { + return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326); +} - document.body.removeChild(box); +function setMapCenter(center, zoom) { + map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom); +} - return new OpenLayers.Size(width + 30, height + 24); +function setMapExtent(extent) { + map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject())); } -function removeMarkerFromMap(marker){ - markers.removeMarker(marker); +function getEventPosition(event) { + return map.getLonLatFromViewPortPx(e.xy).clone().transform(epsg4326, map.getProjectionObject()); } function getMapLayers() { @@ -139,34 +131,19 @@ function getMapLayers() { function setMapLayers(layers) { for (var i=0; i < layers.length; i++) { var layer = map.layers[i]; - var c = layers.charAt(i); - if (c == "B") { - map.setBaseLayer(layer); - } else if ( (c == "T") || (c == "F") ) { - layer.setVisibility(c == "T"); + if (layer) { + var c = layers.charAt(i); + + if (c == "B") { + map.setBaseLayer(layer); + } else if ( (c == "T") || (c == "F") ) { + layer.setVisibility(c == "T"); + } } } } -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); -} - function scaleToZoom(scale) { return Math.log(360.0/(scale * 512.0)) / Math.log(2.0); }