index.html
<!DOCTYPE html>
<html>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>3D - Marker with altitude</title>
<style type="text/css">
html,body{margin:0px;height:100%;width:100%}
.container{width:100%;height:100%}
</style>
<link rel="stylesheet" href="https://unpkg.com/maptalks/dist/maptalks.css">
<script type="text/javascript" src="https://unpkg.com/maptalks/dist/maptalks.min.js"></script>
<body>
<div id="map" class="container"></div>
<script>
var map = new maptalks.Map('map', {
center: [-0.113049, 51.498568],
zoom: 14,
pitch : 56,
baseLayer: new maptalks.TileLayer('base', {
urlTemplate: 'https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
subdomains: ["a","b","c","d"],
attribution: '© <a href="http://osm.org">OpenStreetMap</a> contributors, © <a href="https://carto.com/">CARTO</a>'
})
});
// point with altitude
var point = new maptalks.Marker(
[-0.113049, 51.498568, 400]
);
// same point without altitude
var point0 = new maptalks.Marker(
[-0.113049, 51.498568]
).updateSymbol({
markerOpacity : 0.5,
markerFill : '#bbb'
});
new maptalks.VectorLayer('vector', [point0, point], {
enableAltitude: true // enable altitude
}).addTo(map);
</script>
</body>
</html>