Files
openlayers/examples/overlay-and-popup.js
2012-10-18 14:22:23 +02:00

48 lines
1.3 KiB
JavaScript

goog.require('goog.debug.Console');
goog.require('goog.debug.Logger');
goog.require('goog.debug.Logger.Level');
goog.require('ol.Collection');
goog.require('ol.Coordinate');
goog.require('ol.Map');
goog.require('ol.overlay.Overlay');
goog.require('ol.source.MapQuestOpenAerial');
if (goog.DEBUG) {
goog.debug.Console.autoInstall();
goog.debug.Logger.getLogger('ol').setLevel(goog.debug.Logger.Level.INFO);
}
var layer = new ol.layer.TileLayer({
source: new ol.source.MapQuestOpenAerial()
});
var map = new ol.Map({
center: new ol.Coordinate(0, 0),
layers: new ol.Collection([layer]),
target: 'map',
zoom: 2
});
// Vienna label
var vienna = new ol.overlay.Overlay({
map: map,
coordinate: ol.Projection.transformWithCodes(
new ol.Coordinate(16.3725, 48.208889), 'EPSG:4326', 'EPSG:3857'),
element: document.getElementById('vienna')
});
// Popup showing the position the user clicked
var popup = new ol.overlay.Overlay({
map: map,
element: document.getElementById('popup')
});
map.addEventListener('click', function(evt) {
var coordinate = evt.getCoordinate();
popup.getElement().innerHTML =
'Welcome to ol3. The location you clicked was<br>' +
ol.Coordinate.toStringHDMS(ol.Projection.transformWithCodes(
coordinate, 'EPSG:3857', 'EPSG:4326'));
popup.setCoordinate(coordinate);
});