<!DOCTYPE html>
<html>
<head>
<title>Overlay</title>
<link rel="stylesheet" href="https://openlayers.org/en/v5.3.0/css/ol.css" type="text/css">
<!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
<script src="https://openlayers.org/en/v5.3.0/build/ol.js"></script>
<script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<style>
#marker {
width: 20px;
height: 20px;
border: 1px solid #088;
border-radius: 10px;
background-color: #0FF;
opacity: 0.5;
}
#vienna {
text-decoration: none;
color: white;
font-size: 11pt;
font-weight: bold;
text-shadow: black 0.1em 0.1em 0.2em;
}
.popover-content {
min-width: 180px;
}
</style>
</head>
<body>
<div id="map" class="map"></div>
<div style="display: none;">
<!-- Clickable label for Vienna -->
<a class="overlay" id="vienna" target="_blank" href="http://en.wikipedia.org/wiki/Vienna">Vienna</a>
<div id="marker" title="Marker"></div>
<!-- Popup -->
<div id="popup" title="Welcome to OpenLayers"></div>
</div>
<script>
var fillpt = new ol.style.Fill({
color: 'rgba(255,255,0,0.5)'
});
var fill = new ol.style.Fill({
color: 'rgba(255,0,0,0.5)'
});
var stroke = new ol.style.Stroke({
color: '#3399CC',
width: 1.25
});
var styles = [
new ol.style.Style({
image: new ol.style.Circle({
fill: fillpt,
stroke: stroke,
radius: 15
}),
fill: fill
,
stroke: stroke
})
];
var labelCoords_org=[120, 40];
var labelCoords=ol.proj.transform(labelCoords_org, "EPSG:4326", "EPSG:3857");
var feature = new ol.Feature({
geometry: new ol.geom.Point(labelCoords)
});
// vLayer
var vLayer = new ol.layer.Vector({
source: new ol.source.Vector({features:[feature]}),
style:styles
});
var layer = new ol.layer.Tile({
source: new ol.source.OSM()
});
var map = new ol.Map({
layers: [layer,vLayer],
target: 'map',
view: new ol.View({
center: [0, 0],
zoom: 2
})
});
var pos = ol.proj.fromLonLat([16.3725, 48.208889]);
// Vienna marker
var marker = new ol.Overlay({
position: pos,
positioning: 'center-center',
element: document.getElementById('marker'),
stopEvent: false
});
map.addOverlay(marker);
// Vienna label
var vienna = new ol.Overlay({
position: pos,
element: document.getElementById('vienna')
});
map.addOverlay(vienna);
// Popup showing the position the user clicked
var popup = new ol.Overlay({
element: document.getElementById('popup')
});
map.addOverlay(popup);
map.on('click', function(evt) {
var pixel = map.getEventPixel(evt.originalEvent);
var feature = map.forEachFeatureAtPixel(pixel, function(feature) {
return feature;
});
if(feature){
var element = popup.getElement();
var coordinate = evt.coordinate;
var hdms = ol.coordinate.toStringHDMS(ol.proj.transform(
coordinate, 'EPSG:3857', 'EPSG:4326'));
$(element).popover('destroy');
popup.setPosition(coordinate);
// the keys are quoted to prevent renaming in ADVANCED mode.
$(element).popover({
'placement': 'top',
'animation': false,
'html': true,
'content': '<p>The location you clicked was:</p><code>' + hdms + '</code>'
});
$(element).popover('show');
}else{
var element = popup.getElement();
$(element).popover('destroy');
}
