var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var map;
var markers;
var vectors;
var popup;
function createMap(divName, options) {
options = options || {};
map = new OpenLayers.Map(divName, {
controls: options.controls || [
new OpenLayers.Control.ArgParser(),
new OpenLayers.Control.Attribution(),
new SimpleLayerSwitcher(),
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.Zoom(),
new OpenLayers.Control.SimplePanZoom(),
new OpenLayers.Control.ScaleLine({geodesic: true})
],
numZoomLevels: 20,
displayProjection: new OpenLayers.Projection("EPSG:4326"),
theme: "<%= asset_path 'theme/openstreetmap/style.css' %>"
});
var mapnik = new OpenLayers.Layer.OSM.Mapnik(I18n.t("javascripts.map.base.standard"), {
attribution: "",
keyid: "mapnik",
displayOutsideMaxExtent: true,
wrapDateLine: true,
layerCode: "M"
});
map.addLayer(mapnik);
var cyclemap = new OpenLayers.Layer.OSM.CycleMap(I18n.t("javascripts.map.base.cycle_map"), {
attribution: "Tiles courtesy of Andy Allan",
keyid: "cyclemap",
displayOutsideMaxExtent: true,
wrapDateLine: true,
layerCode: "C"
});
map.addLayer(cyclemap);
var transportmap = new OpenLayers.Layer.OSM.TransportMap(I18n.t("javascripts.map.base.transport_map"), {
attribution: "Tiles courtesy of Andy Allan",
keyid: "transportmap",
displayOutsideMaxExtent: true,
wrapDateLine: true,
layerCode: "T"
});
map.addLayer(transportmap);
var mapquest = new OpenLayers.Layer.OSM(I18n.t("javascripts.map.base.mapquest"), [
"http://otile1.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
"http://otile2.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
"http://otile3.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
"http://otile4.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png"
], {
attribution: "Tiles courtesy of MapQuest ",
keyid: "mapquest",
displayOutsideMaxExtent: true,
wrapDateLine: true,
numZoomLevels: 19,
layerCode: "Q"
});
map.addLayer(mapquest);
markers = new OpenLayers.Layer.Markers("Markers", {
displayInLayerSwitcher: false,
numZoomLevels: 20,
projection: "EPSG:900913"
});
map.addLayer(markers);
map.dataLayer = new OpenLayers.Layer(I18n.t('browse.start_rjs.data_layer_name'), {
visibility: false,
displayInLayerSwitcher: false
});
map.addLayer(map.dataLayer);
$("#" + divName).on("resized", function () {
map.updateSize();
});
return map;
}
function getArrowIcon() {
var size = new OpenLayers.Size(25, 22);
var offset = new OpenLayers.Pixel(-22, -20);
var icon = new OpenLayers.Icon("<%= asset_path 'arrow.png' %>", size, offset);
return icon;
}
function addMarkerToMap(position, icon, description) {
var marker = new OpenLayers.Marker(proj(position), icon);
markers.addMarker(marker);
if (description) {
marker.events.register("mouseover", marker, function() {
openMapPopup(marker, description);
});
}
return marker;
}
function addObjectToMap(url, zoom, callback) {
var layer = new OpenLayers.Layer.Vector("Objects", {
strategies: [
new OpenLayers.Strategy.Fixed()
],
protocol: new OpenLayers.Protocol.HTTP({
url: url,
format: new 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);
}
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 = proj(new OpenLayers.Geometry.LineString(vertices));
} else {
geometry = proj(boxbounds.toGeometry());
}
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.FramedCloud("popup", marker.lonlat, null,
description, marker.icon, true);
popup.setBackgroundColor("#E3FFC5");
map.addPopup(popup);
return popup;
}
function closeMapPopup() {
if (popup) {
map.removePopup(popup);
delete popup;
}
}
function removeMarkerFromMap(marker){
markers.removeMarker(marker);
}
function proj(x) {
return x.clone().transform(epsg4326, map.getProjectionObject());
}
function unproj(x) {
return x.clone().transform(map.getProjectionObject(), epsg4326);
}
function setMapCenter(center, zoom) {
zoom = parseInt(zoom, 10);
var numzoom = map.getNumZoomLevels();
if (zoom >= numzoom) zoom = numzoom - 1;
map.setCenter(proj(center), zoom);
}
function getEventPosition(event) {
return map.getLonLatFromViewPortPx(event.xy).clone().transform(map.getProjectionObject(), epsg4326);
}
function getMapLayers() {
var layerConfig = "";
for (var i = 0; i < map.layers.length; i++) {
if (map.layers[i].layerCode && map.layers[i].getVisibility()) {
layerConfig += map.layers[i].layerCode;
}
}
return layerConfig;
}
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(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 if (!map.layers[i].isBaseLayer) {
map.layers[i].setVisibility(false);
}
}
}
}
}