从外部访问 Leaflet.js GeoJson 功能-前端问题

Accessing Leaflet.js GeoJson features from outside(从外部访问 Leaflet.js GeoJson 功能)

本文介绍了从外部访问 Leaflet.js GeoJson 功能的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想与 L. 领域之外的传单驱动地图的 GeoJson 覆盖(多边形)进行交互，但我似乎无法访问由 创建的对象L..

I want to interact with a leaflet powered map's GeoJson overlay (polygons) from outside of L.'s realm, but I don't seem to be able to access objects created by L..

互动包括:

getBounds(myFeature)
fitBounds(myFeature)
设置样式等等

我可以看到 Leaflet 暴露了 L.GeoJSON.getFeature()，但我似乎无法从中挤出任何东西.没有文档，检查员似乎建议它不接受参数...:

I can see Leaflet exposing L.GeoJSON.getFeature(), but I don't seem to be able to squeeze anything out of it. No documentation, and the inspector seems to suggest it does not take arguments... :

这只是为了未来的发展吗?

Is this just there for future development?

推荐答案

您可以使用 getLayer 通过其 id 获取该功能.
http://leafletjs.com/reference.html#layergroup-getlayer

You may use getLayer to get the feature by its id.
http://leafletjs.com/reference.html#layergroup-getlayer

var geojsonLayer = L.geoJson(data,{
    onEachFeature: function(feature, layer) {
        layer._leaflet_id = feature.id;                                    
    }});
geojsonLayer.addTo(map);

feature = geojsonLayer.getLayer(12345); //your feature id here
alert(feature.feature.id);

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