+var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var map;
var markers;
var popup;
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.ScaleLine()
],
+ maxResolution: 156543,
units: "m"
});
}
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);
function openMapPopup(marker, description) {
closeMapPopup();
- popup = new OpenLayers.Popup.AnchoredBubble("popup", marker.lonlat,
- sizeMapPopup(description),
- "<p style='padding-right: 28px'>" + 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;
}
}
-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() {
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);
}