Arc layer

Add Arc Layer

Uncomment the following line to install leafmap if needed.

In [ ]:

# %pip install leafmap

# %pip install leafmap

In [ ]:

import pandas as pd
import geopandas as gpd
import ipywidgets as widgets
import leafmap.maplibregl as leafmap

import pandas as pd import geopandas as gpd import ipywidgets as widgets import leafmap.maplibregl as leafmap

In [ ]:

route_url = (
    "https://github.com/opengeos/datasets/releases/download/world/airport_routes.csv"
)
df = pd.read_csv(route_url)
df.head()

route_url = ( "https://github.com/opengeos/datasets/releases/download/world/airport_routes.csv" ) df = pd.read_csv(route_url) df.head()

In [ ]:

airport_url = (
    "https://github.com/opengeos/datasets/releases/download/world/airports.geojson"
)
gdf = gpd.read_file(airport_url)
gdf.head()

airport_url = ( "https://github.com/opengeos/datasets/releases/download/world/airports.geojson" ) gdf = gpd.read_file(airport_url) gdf.head()

In [ ]:

m = leafmap.Map(style="liberty")
m.add_gdf(gdf, name="Airports", fit_bounds=False)
container = m.create_container()

m = leafmap.Map(style="liberty") m.add_gdf(gdf, name="Airports", fit_bounds=False) container = m.create_container()

In [ ]:

dropdown = widgets.Dropdown(
    description="Airport", options=df["src_airport"].unique().tolist(), value=None
)
map_widget = widgets.VBox([m.container])
main_widget = widgets.VBox([dropdown, map_widget])


def on_airport_change(change):

    if change["new"]:
        airport = change["new"]
        selected_df = df[df["src_airport"] == airport]
        dst_airports = selected_df["dst_airport"].unique().tolist() + [airport]
        selected_gdf = gdf[gdf["id"].isin(dst_airports)]
        m = leafmap.Map(style="liberty")
        m.add_basemap(
            "Esri.WorldImagery", visible=False, before_id=m.first_symbol_layer_id
        )
        m.add_gdf(selected_gdf, name="Airports", fit_bounds=False)
        m.add_arc_layer(
            selected_df,
            src_lon="src_lon",
            src_lat="src_lat",
            dst_lon="dst_lon",
            dst_lat="dst_lat",
        )
        m.create_container()
        map_widget.children = [m.container]


dropdown.observe(on_airport_change, names="value")
main_widget

dropdown = widgets.Dropdown( description="Airport", options=df["src_airport"].unique().tolist(), value=None ) map_widget = widgets.VBox([m.container]) main_widget = widgets.VBox([dropdown, map_widget]) def on_airport_change(change): if change["new"]: airport = change["new"] selected_df = df[df["src_airport"] == airport] dst_airports = selected_df["dst_airport"].unique().tolist() + [airport] selected_gdf = gdf[gdf["id"].isin(dst_airports)] m = leafmap.Map(style="liberty") m.add_basemap( "Esri.WorldImagery", visible=False, before_id=m.first_symbol_layer_id ) m.add_gdf(selected_gdf, name="Airports", fit_bounds=False) m.add_arc_layer( selected_df, src_lon="src_lon", src_lat="src_lat", dst_lon="dst_lon", dst_lat="dst_lat", ) m.create_container() map_widget.children = [m.container] dropdown.observe(on_airport_change, names="value") main_widget