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Leaflet.groupedlayercontrol

Leaflet layer control with support for grouping overlays together. The layer groups also may be made collapsible.

preview

Demo

Usage

Initialization

Add groupings to your overlay layers object, and swap out the default layer control with the new one.

var groupedOverlays = {
  "Landmarks": {
    "Motorways": motorways,
    "Cities": cities
  },
  "Points of Interest": {
    "Restaurants": restaurants
  }
};

var layerControl = L.control.groupedLayers(baseLayers, groupedOverlays, {'groupedlayers' : {'collapsible': true, 'collapsed' : true, 'expandFirst' : true}});
map.addControl(layerControl);

The example shows some basic CSS styling of the new control elements.

Adding a layer

Adding a layer individually works similarly to the default layer control, but requires that you also specify the group name, along with the layer and layer name.

layerControl.addOverlay(cities, "Cities", "Landmarks").

Note

This plugin only affects how the layers are dislpayed in the layer control, and not how they are rendered or layered on the map.

Grouping base layers is not currently supported.

License

Leaflet.groupedlayercontrol is free software, and may be redistributed under the MIT-LICENSE.