GeoJsonLayer

The deck.gl GeoJsonLayer is best suited for rendering vector data such as polygons, lines, and points. You can pass a Python dict representing GeoJSON, a filename, or any other serializable object that deck.gl understands.

The example below renders a short line segment that highlights the Golden Gate Bridge. Styling options such as get_line_color and line_width_min_pixels map directly to deck.gl and are forwarded to the front end when the widget is rendered.

from ipydeck import Deck, Layer, ViewState

bridge = {
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "properties": {"name": "Golden Gate Bridge"},
            "geometry": {
                "type": "LineString",
                "coordinates": [
                    [-122.483696, 37.832275],
                    [-122.478977, 37.819928],
                ],
            },
        }
    ],
}

geojson_layer = Layer(
 type="GeoJsonLayer",
    data=bridge,
    get_line_color=[255, 99, 71],
    line_width_min_pixels=3,
    pickable=True,
)

Deck(
    layers=[geojson_layer],
    initial_view_state=ViewState(latitude=37.8267, longitude=-122.4805, zoom=12.5),
    tooltip={"text": "{name}"},
)

For larger datasets you can point data at a remote GeoJSON URL or any mapping library that yields compatible features.