[英]Highlight(change color) roads, footpaths or cycle paths in mapbox gl js
[英]Mapbox GL JS change builidng color on click
我必須在單擊時更改建築物的顏色或邊框。
HTML和JS
就像將鼠標懸停在國家/地區上的示例一樣,但是單擊而不是國家/地區->建築物。
如果使用其他插件更輕松,請這樣說。 3D並非“必備”。
我的代碼:
<script>
mapboxgl.accessToken = 'hidden';
var map = new mapboxgl.Map({
style: 'mapbox://styles/mapbox/light-v9',
center: [7.3337859, 50.8403206],
zoom: 19.8,
pitch: 60,
bearing: -70,
hash: true,
container: 'map'
});
// The 'building' layer in the mapbox-streets vector source contains building-height
// data from OpenStreetMap.
map.on('load', function() {
// Insert the layer beneath any symbol layer.
var layers = map.getStyle().layers;
var labelLayerId;
for (var i = 0; i < layers.length; i++) {
if (layers[i].type === 'symbol' && layers[i].layout['text-field']) {
labelLayerId = layers[i].id;
break;
}
}
map.addLayer({
'id': '3d-buildings',
'source': 'composite',
'source-layer': 'building',
'filter': ['==', 'extrude', 'true'],
'type': 'fill-extrusion',
'minzoom': 15,
'paint': {
'fill-extrusion-color': '#aaa',
// use an 'interpolate' expression to add a smooth transition effect to the
// buildings as the user zooms in
'fill-extrusion-height': [
"interpolate", ["linear"], ["zoom"],
15, 0,
15.05, ["get", "height"]
],
'fill-extrusion-base': [
"interpolate", ["linear"], ["zoom"],
15, 0,
15.05, ["get", "min_height"]
],
'fill-extrusion-opacity': .6
}
}, labelLayerId);
map.on('click', '3d-buildings', function(e) {
console.log(e.features[0]);
//map.setPaintProperty('3d-buildings', 'fill-extrude-color', '#FF0000');
map.setPaintProperty('3d-buildings', 'fill-color', '#faafee');
});
});
謝謝 :)
您需要添加一個圖層,以在其上顯示所選建築物。 例如:
map.addSource('currentBuildings', {
type: 'geojson',
data: {
"type": "FeatureCollection",
"features": []
}
});
map.addLayer({
"id": "highlight",
"source": "currentBuildings",
'type': 'line',
'minzoom': 15,
'paint': {
'line-color': '#f00',
'line-width': 3
}
}, labelLayerId);
map.on('click', '3d-buildings', function(e) {
map.getSource('currentBuildings').setData({
"type": "FeatureCollection",
"features": e.features[0]]
});
});
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.