有没有一种方法可以使用GridLayer复制L.LayerGroup.eachLayer()的行为?我正在使用Leaflet.VectorGrid(L.VectorGrid.Slicer)来在世界范围内包装一些GeoJSON,并且我想将每个要素添加到一个或多个图层组中。例如,下面的代码适用于GeoJSON对象,但不适用于网格图层。
// want to do something like this; layer groups defined previously
L.geoJSON(usData, {
style: // styling logic
})
.eachLayer(layer => {
layerGroup1.addLayer(layer);
if (category2.indexOf(layer.someProperty) !== -1) {
layerGroup2.addLayer(layer);
}
if (category3.indexOf(layer.someProperty) !== -1) {
layerGroup3.addLayer(layer);
}
})
.addTo(mapObject);
// no eachLayer() method for grid layers or slicers; how could you do this with grid layers?
L.vectorGrid.slicer(usData, {
vectorTileLayerStyles: {
sliced: properties => someFunction(properties)
},
interactive: true
})
.eachLayer(layer => {
// do something with each layer
})
.addTo(mapObject);
最佳答案
创建几个L.VectorGrid.Slicer
实例,每个所需的LayerGroup
实例。相应地过滤您的GeoJSON数据。