63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
|
function jumpTo(lon, lat, zoom) {
|
||
|
|
var x = Lon2Merc(lon);
|
||
|
|
var y = Lat2Merc(lat);
|
||
|
|
map.setCenter(new OpenLayers.LonLat(x, y), zoom);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
function Lon2Merc(lon) {
|
||
|
|
return 20037508.34 * lon / 180;
|
||
|
|
}
|
||
|
|
|
||
|
|
function Lat2Merc(lat) {
|
||
|
|
var PI = 3.14159265358979323846;
|
||
|
|
lat = Math.log(Math.tan( (90 + lat) * PI / 360)) / (PI / 180);
|
||
|
|
return 20037508.34 * lat / 180;
|
||
|
|
}
|
||
|
|
|
||
|
|
function addMarker(layer, lon, lat, popupContentHTML) {
|
||
|
|
|
||
|
|
var ll = new OpenLayers.LonLat(Lon2Merc(lon), Lat2Merc(lat));
|
||
|
|
var feature = new OpenLayers.Feature(layer, ll);
|
||
|
|
feature.closeBox = true;
|
||
|
|
feature.popupClass = OpenLayers.Class(OpenLayers.Popup.FramedCloud, {minSize: new OpenLayers.Size(300, 180) } );
|
||
|
|
feature.data.popupContentHTML = popupContentHTML;
|
||
|
|
feature.data.overflow = "hidden";
|
||
|
|
|
||
|
|
var marker = new OpenLayers.Marker(ll);
|
||
|
|
marker.feature = feature;
|
||
|
|
|
||
|
|
var markerClick = function(evt) {
|
||
|
|
if (this.popup == null) {
|
||
|
|
this.popup = this.createPopup(this.closeBox);
|
||
|
|
map.addPopup(this.popup);
|
||
|
|
this.popup.show();
|
||
|
|
} else {
|
||
|
|
this.popup.toggle();
|
||
|
|
}
|
||
|
|
OpenLayers.Event.stop(evt);
|
||
|
|
};
|
||
|
|
marker.events.register("mousedown", feature, markerClick);
|
||
|
|
|
||
|
|
layer.addMarker(marker);
|
||
|
|
map.addPopup(feature.createPopup(feature.closeBox));
|
||
|
|
}
|
||
|
|
|
||
|
|
function getCycleTileURL(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);
|
||
|
|
|
||
|
|
if (y < 0 || y >= limit)
|
||
|
|
{
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
x = ((x % limit) + limit) % limit;
|
||
|
|
|
||
|
|
return this.url + z + "/" + x + "/" + y + "." + this.type;
|
||
|
|
}
|
||
|
|
}
|