我是 Mapbox 的新手。我在 mapbox studio 中创建了一个自定义样式地图，然后使用 geoJson 添加标记。这是示例代码：
mapboxgl.accessToken = 'pk.eyJ1Ijoic2Fua3ljc2Uhhcc.mb22KHuonjywQ-eaWQ';
var map = new mapboxgl.Map({
container: 'map_geo',
style: 'mapbox://styles/abcd/cipjtsdhyh04ebam5tndf4jaj',
zoom: 3.7,
center: [81.30, 22.76]
});
var geoJson = {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"properties": {
"title": "Nagpur",
"description": "Nagpur",
"marker-symbol": "marker",
},
"geometry": {
"coordinates": [79.0882, 21.1845],
"type": "Point"
},
"id": "223e9579f03849c87abec10dfed64c37"
}, {
"type": "Feature",
"properties": {
"title": "Lucknow",
"description": "Lucknow",
"marker-symbol": "marker",
},
"geometry": {
"coordinates": [80.9462, 26.8467],
"type": "Point"
},
"id": "2cc757705489152c8bccb33635708427"
}]
};
map.on('load', function () {
map.addSource("markers", {
"type": "geojson",
"data": geoJson
});
map.addLayer({
"id": "markers",
"type": "symbol",
"source": "markers",
"layout": {
"icon-image": "{marker-symbol}-15",
"text-field": "{title}",
"text-font": ["Open Sans Semibold", "Arial Unicode MS Bold"],
"text-offset": [0, 0.6],
"text-anchor": "top",
},
"paint": {
"text-size": 16,
"text-color": "#fff",
}
});
});
map.scrollZoom.disable();
map.on('click', function (e) {
var features = map.queryRenderedFeatures(e.point, { layers: ['markers'] });
if (!features.length) {
return;
}
// here I want to change the marker color to highlight the selected marker
});
现在我想通过单击任何标记来更改标记颜色以显示选定的标记。提前致谢。