[英]How to add a marker to a MapBox GL JS map?
我正在嘗試在HTML / Javascript地圖中為MapBox-GL-JS地圖添加標記。
我試着建立一個小樣本:這里是你的代碼
<html>
<head>
<meta charset="utf-8">
<title>Test MapBox</title>
<!-- *** References for MapBox GL JS ... -->
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.37.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.37.0/mapbox-gl.css' rel='stylesheet' />
<style>
html, body {
min-height: 100%;
min-width: 100%;
margin: 0;
padding: 0;
}
table {
width: 95vw;
height: 95vh;
}
td {
width: 50%;
height: 50%;
}
</style>
</head>
<body>
<div id="maps-images">
<center>
<table border=1>
<!-- second row -->
<tr id="row2">
<td id="osm">
<div id="osm_map" style="width:100%;height:100%"></div>
</td>
</tr>
</table>
</center>
</div>
<script>
mapboxgl.accessToken = '<PUT_YOUR_MAPBOX_KEY_HERE';
// *** Create and configure the map ...
var osm_map = new mapboxgl.Map({
container: 'osm_map', // container id
style: 'mapbox://styles/mapbox/bright-v9', //stylesheet location
center: [13.291408333333237,42.628386111111126], // starting position
zoom: 16 // starting zoom
});
// *** Add zoom and rotation controls to the map ...
osm_map.addControl(new mapboxgl.NavigationControl());
marker = new mapboxgl.Marker()
.setLngLat([13.291408333333237, 42.628386111111126])
.addTo(osm_map);
</script>
</body>
</html>
代碼工作正常,但我的地圖上沒有顯示標記....
建議/例子?
標記沒有任何默認樣式。 您需要創建一個HTML元素並傳遞它。 看這里的例子:
var el = document.createElement('div');
el.className = 'marker';
el.style.backgroundImage = 'url(https://placekitten.com/g/' + marker.properties.iconSize.join('/') + '/)';
el.style.width = marker.properties.iconSize[0] + 'px';
el.style.height = marker.properties.iconSize[1] + 'px';
el.addEventListener('click', function() {
window.alert(marker.properties.message);
});
// add marker to map
new mapboxgl.Marker(el, {offset: [-marker.properties.iconSize[0] / 2, -marker.properties.iconSize[1] / 2]})
.setLngLat(marker.geometry.coordinates)
.addTo(map);
});
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