<!doctype html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://tiles.locationiq.com/v3/libs/openlayers/8.2.0/ol.css" type="text/css">
<script src="https://tiles.locationiq.com/v3/libs/openlayers/8.2.0/ol.js"></script>
<style>
body { margin:0px; padding:0px; }
#map { position:absolute; top:0px; bottom:0px; width:100%; }
</style>
<script src="https://tiles.locationiq.com/v3/libs/olms/12.0.0/olms.js" type="text/javascript"></script>
<title>Draw Polygons</title>
</head>
<body>
<div id="map"></div>
<script type="text/javascript">
var key = 'pk.aa7f5d0539c5675b7f3429402939d8fa'; //Insert your LocationIQ access token here
var styleJson = 'https://tiles-staging.locationiq.com/v3/streets/vector.json?key=' + key;
const map = new ol.Map({
target: 'map',
view: new ol.View({
center: ol.proj.fromLonLat([-122.42, 37.779]),
zoom: 12
})
});
//type of feature to draw, Other possible values : 'Point', 'LineString', 'Circle', 'Polygon'
var featureType = 'Polygon';
//Let’s include the markers and create a vector source with it
var vectorSource = new ol.source.Vector({});
//Let’s create a vector layer, with a source created above
var vectorLayer = new ol.layer.Vector({
source: vectorSource,
zIndex: 1
});
map.addLayer(vectorLayer);
// draw interaction logic
// global variable so that we can remove it later
// To activate freehand drawing for lines, polygons, and circles, hold the Shift key.
var draw;
function addInteraction() {
draw = new ol.interaction.Draw({
source: vectorSource,
type: featureType
});
map.addInteraction(draw);
}
map.onclick = function() {
map.removeInteraction(draw);
addInteraction();
};
addInteraction();
olms.apply(map, styleJson);
</script>
</body>
</html>