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Layer groups

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Create layer group toggle buttons

This example shows how to create layer group toggle buttons for the layer manager.

Uncomment the following line to install leafmap if needed.

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# %pip install "leafmap[maplibre]"

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import leafmap.maplibregl as leafmap

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m = leafmap.Map()

## Add basemap layers
m.add_basemap("USGS.Imagery")
m.add_basemap("OpenTopoMap")

# Add GeoJSON layers
point_url = (
    "https://github.com/opengeos/datasets/releases/download/world/world_cities.geojson"
)
m.add_geojson(point_url, name="Points")
line_url = (
    "https://github.com/opengeos/datasets/releases/download/vector/cables.geojson"
)
m.add_geojson(line_url, name="Lines")

# Create layer groups
groups = {"Basemap": ["USGS.Imagery", "OpenTopoMap"], "GeoJSON": ["Points", "Lines"]}

# Add a layer manager with group toggle buttons
m.add_layer_manager(label="Layer Manager", groups=groups)

# Display the map
m

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