是否动态添加要素组到图层控件或从图层控件中删除要素组? [英] Dynamically adding/removing FeatureGroup to/from the Layer Control?

问题描述

我目前正在使用leaflet.draw插件绘制多边形和线条.该插件依赖FeatureGroup进行存储和编辑.我想像图层控件中那样管理这些几何(例如，打开或关闭它们的可见性).

I am currently using leaflet.draw plugin to draw polygons and lines. The plugin depends on FeatureGroup for storing and editing. I want to manage these geometries (e.g. turn their visibility on or off) like those in the layer control.

最终，我希望能够添加和删除这些功能组.

Ultimately, I want to be able to add and remove these FeatureGroups.

这可以实现吗?

这是我要实现的目标: 1.将FeatureGroup视为动态图层(可以添加或删除或编辑).在这里我可以绘制几何图形并放置标记 2.添加FeatureGroup后，它应该位于图层控件"中，以便用户可以打开或关闭可见性.

Here is what I want to achieve: 1. Treat FeatureGroup like dynamic layers (can add or remove or edit). It is where I can draw geometries and place markers 2. When a FeatureGroup is added, it should be in the Layer Control so user can turn the visibility on or off.

推荐答案

是的，这是可能的.您可以将任何类型的图层添加到L.Control.Layers，这也意味着对图层进行分组:

Yes, that's possible. You can add any type of layer to L.Control.Layers, that also means grouping layers:

new L.Control.Layers(null, {
    'Markers': new L.FeatureGroup([
        new L.Marker([45, 0]),
        new L.Marker([-45, 0]),
        new L.Marker([0, 45]),
        new L.Marker([0, -45])
    ]),
    'Polylines': new L.FeatureGroup([
        new L.Polyline([[-45, -45], [45, 45]]),
        new L.Polyline([[45, -45], [-45, 45]])
    ])
}).addTo(map);

在Plunker上的工作示例: http://plnkr.co/edit/6mC6HTfPmzG9AblK1wyg?p=preview

Working example on Plunker: http://plnkr.co/edit/6mC6HTfPmzG9AblK1wyg?p=preview

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