我使用以下示例在地图上添加了一些标记：
https://www.mapbox.com/mapbox-gl-js/example/geojson-markers/
现在我想在用户单击标记图像时显示弹出窗口，但我找不到优雅的解决方案。有什么帮助吗？
我也遇到了同样的问题，但我找到了一种解决方法，而无需创建 html 元素。
我使用了
getElement() this.service.getAllData().forEach(e => {
// create MapBox Marker
const marker = new mapboxgl.Marker().setLngLat([e.lon, e.lat]).addTo(this.map);
// use GetElement to get HTML Element from marker and add event
marker.getElement().addEventListener('click', () => {
alert("Clicked");
});
});
考虑最近发布的 MapBox-Gl-js。可以直接完成，只需添加带有标记的弹出窗口即可。
// create a simple popup.
var popup = new mapboxgl.Popup({offset: 25})
.setText('Construction on the Washington Monument began in 1848.');
// create DOM element for the marker
var el = document.createElement('div');
el.innerHTML = "Marker1";
el.id = 'marker';
// create the marker
new mapboxgl.Marker(el, {offset:[-25, -25]})
.setLngLat(monument)
.setPopup(popup) // sets a popup on this marker
.addTo(map);
休息你就可以拥有自己设计的弹出窗口了
var html = '<div class="marker-popup">I am a custom pop-up</div>';
var customPopUp = new mapboxgl.Popup(
{
anchor: 'bottom', // To show popup on top
offset: { 'bottom': [0, -10] }, // To prevent popup from over shadowing the marker.
closeOnClick: false // To prevent close on mapClick.
}
).setHTML(html); // You can set any valid HTML.
供参考https://www.mapbox.com/mapbox-gl-js/example/set-popup/
还有一个更有用的东西，要在标记上附加单击事件，您可以通过在标记元素上附加单击事件侦听器来完成，例如
el.addEventListener('click', () =>
{
alert("Marker Clicked.");
}
);
以下代码片段来自 Mapbox-gl-js 示例：单击时显示弹出窗口
map.on('click', function (e) {
var features = map.queryRenderedFeatures(e.point, { layers: ['places'] });
if (!features.length) {
return;
}
var feature = features[0];
//Use Feature and put your code
// Populate the popup and set its coordinates
// based on the feature found.
var popup = new mapboxgl.Popup()
.setLngLat(feature.geometry.coordinates)
.setHTML(feature.properties.description)
.addTo(map);
});
// Use the same approach as above to indicate that the symbols are clickable
// by changing the cursor style to 'pointer'.
map.on('mousemove', function (e) {
var features = map.queryRenderedFeatures(e.point, { layers: ['places'] });
map.getCanvas().style.cursor = (features.length) ? 'pointer' : '';
});
对于初学者来说，在您可能用来向地图添加标记的map.addLayer()函数中，您需要在配置对象中设置 "interactive": true 。
map.addLayer({
"id": "YOUR LAYER ID",
"interactive": true,
"type": "symbol",
"source": "YOUR LAYER SOURCE",
"layout": {
"icon-image": "YOUR LAYER ICON IMAGE",
"text-font": "Open Sans Semibold, Arial Unicode MS Bold",
"text-offset": [0, 0.6],
"text-anchor": "top"
},
"paint": {
"text-size": 12,
"icon-size": 1,
"icon-opacity": 0
}
});
之后，您需要在地图上设置一个点击处理程序，并检查该点是否位于您的某个要素（标记）上方。
map.on('click', function(e) {
console.log(e);
map.featuresAt(e.point, {radius: 100, layer: 'YOUR MARKER LAYER ID'}, function(err, features) {
console.log(features[0]);
});
});
您可以在他们的网站查看文档以获取更多信息。如果您有任何问题，请告诉我。
<link href="https://api.tiles.mapbox.com/mapbox-gl-js/v0.53.1/mapbox-gl.css" rel="stylesheet" />
<style>
html, body, #mapContainer {
height: 100%;
margin: 0;
}
/* Change the cursor to a pointer on hover so the user knows it's clickable */
.mapboxgl-marker:hover {
cursor: pointer;
}
/* darken the marker on hover */
.mapboxgl-marker:hover svg > g > g:nth-child(2) {
fill: #7993a5;
}
#info-box {
position: absolute;
z-index: 10;
left: 7px;
font-family: sans-serif;
background: #dedede;
padding: 12px;
border-radius: 8px;
font-size: 2rem;
border: 1px solid #969696;
bottom: 34px;
}
</style>
<div id="mapContainer"></div>
<div id="info-box">Click a City</div>
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.53.1/mapbox-gl.js'></script>
<script>
mapboxgl.accessToken = 'YOUR MAPBOX TOKEN';
const map = new mapboxgl.Map({
container: 'mapContainer',
style: 'mapbox://styles/mapbox/light-v9',
center: [-100.52, 37.67],
zoom: 3.05,
pitch: 36,
hash: true,
});
// Add zoom and rotation controls to the map.
map.addControl(new mapboxgl.NavigationControl());
// extend mapboxGL Marker so we can pass in an onClick handler
class ClickableMarker extends mapboxgl.Marker {
// new method onClick, sets _handleClick to a function you pass in
onClick(handleClick) {
this._handleClick = handleClick;
return this;
}
// the existing _onMapClick was there to trigger a popup
// but we are hijacking it to run a function we define
_onMapClick(e) {
const targetElement = e.originalEvent.target;
const element = this._element;
if (this._handleClick && (targetElement === element || element.contains((targetElement)))) {
this._handleClick();
}
}
};
const cities = [
{
name: 'New York',
coordinates: [ -73.969145, 40.669116 ],
},
{
name: 'Washington, D.C.',
coordinates: [ -77.047119, 38.856820 ],
},
{
name: 'Chicago',
coordinates: [ -87.662659, 41.865470 ],
},
{
name: 'Seattle',
coordinates: [ -122.266846, 47.591346 ],
},
{
name: 'St. Louis',
coordinates: [ -90.304871, 38.634036 ],
},
{
name: 'Houston',
coordinates: [ -95.377808, 29.754840 ],
},
];
cities.forEach((city) => {
new ClickableMarker()
.setLngLat(city.coordinates)
.onClick(() => { // onClick() is a thing now!
document.getElementById('info-box')
.innerHTML = `You clicked ${city.name}!`;
})
.addTo(map);
});
</script>
https://bl.ocks.org/chriswhong/8977c0d4e869e9eaf06b4e9fda80f3ab
这是解决方案。
单独添加点击事件
希望这会有所帮助
在 maplibre 上，我可以将 onClick 事件附加到标记，如下所示：
marker.getElement().addEventListener('click', () => console.log('click event'))