Javascript 如何在Mapbox GL JS中的可单击多边形顶部放置可单击标记
我用mapbox gl js制作了一张地图,并添加了停车场图层,当单击这些图层时,会打开一个带有方向的弹出窗口。然后我在停车场层的顶部放置了一些可点击的标记(用于公共汽车站、无障碍停车场等)。当我单击停车场上的标记时,停车场弹出窗口和标记弹出窗口都会弹出。如果存在标记弹出窗口,如何防止多边形层触发弹出窗口?我不想两个弹出窗口都显示出来 以下是相关代码:Javascript 如何在Mapbox GL JS中的可单击多边形顶部放置可单击标记,javascript,mapbox-gl-js,Javascript,Mapbox Gl Js,我用mapbox gl js制作了一张地图,并添加了停车场图层,当单击这些图层时,会打开一个带有方向的弹出窗口。然后我在停车场层的顶部放置了一些可点击的标记(用于公共汽车站、无障碍停车场等)。当我单击停车场上的标记时,停车场弹出窗口和标记弹出窗口都会弹出。如果存在标记弹出窗口,如何防止多边形层触发弹出窗口?我不想两个弹出窗口都显示出来 以下是相关代码: // Add a layer showing the parking lots map.addLayer({ "id": "parkin
// Add a layer showing the parking lots
map.addLayer({
"id": "parking-layer",
"type": "fill",
"source": "parking-buttons",
"layout": {},
"paint": {
"fill-color": "hsla(0, 0%, 0%, 0)",
"fill-outline-color": "hsla(0, 0%, 0%, 0)"
}
});
// Add a layer showing the bus stop
map.addLayer({
"id": "bus",
"type": "symbol",
"source": "bus",
"layout": {
"icon-image": "{icon}-11",
"icon-allow-overlap": true
},
"paint": {
"icon-opacity": {"stops": [[15.49, 0], [15.5, 1]]}
}
});
// When a click event occurs for a polygon, open a popup with details
map.on('click', function (e) {
var features = map.queryRenderedFeatures(e.point, { layers: ['parking-layer', 'buildings-layer'] });
if (!features.length) {
return;
}
var feature = features[0];
// Populate the popup and set its coordinates
var popup = new mapboxgl.Popup()
.setLngLat(map.unproject(e.point))
.setHTML(feature.properties.description)
.addTo(map);
});
// When a click event occurs for a node, open a popup with details
map.on('click', function (e) {
var features = map.queryRenderedFeatures(e.point, { layers: ['bus', 'ephone'] });
if (!features.length) {
return;
}
var feature = features[0];
// Populate the popup and set its coordinates
var popup = new mapboxgl.Popup()
.setLngLat(feature.geometry.coordinates)
.setHTML(feature.properties.description)
.addTo(map);
});
您正在
单击事件上注册两个单独的处理程序,如果有重叠的功能,这两个事件都会显示一个弹出窗口
我会尝试在一个单击处理程序中处理不同的结果,而不是在两个:
// When a click event occurs for a polygon, open a popup with details
map.on('click', function (e) {
var pointFeatures = map.queryRenderedFeatures(e.point, { layers: ['bus', 'ephone'] });
if (pointFeatures.length > 0) {
var feature = pointFeatures[0];
// Populate the popup and set its coordinates
var popup = new mapboxgl.Popup()
.setLngLat(feature.geometry.coordinates)
.setHTML(feature.properties.description)
.addTo(map);
return; // don't display any more pop ups
}
var polygonFeatures = map.queryRenderedFeatures(e.point, { layers: ['parking-layer', 'buildings-layer'] });
if (!polygonFeatures.length) {
return;
}
var feature = polygonFeatures [0];
// Populate the popup and set its coordinates
var popup = new mapboxgl.Popup()
.setLngLat(map.unproject(e.point))
.setHTML(feature.properties.description)
.addTo(map);
});
我对这个库不太了解,但看起来您正在注册两个click
处理程序,它们都是单独执行的。因此,您将看到两个弹出窗口。我建议只在单个处理程序中处理单击事件,然后根据返回的特性实现一些显示弹出窗口的逻辑。