momepy.get_node_id#

momepy.get_node_id(objects, nodes, edges, node_id, edge_id=None, edge_keys=None, edge_values=None, verbose=True)[source]#

Snap each building to the closest street network node on the closest network edge. Adds node ID to objects (preferably buildings). Gets ID of edge (momepy.get_network_id() or get_network_ratio()), and determines which of its end points is closer to the building centroid. Pass either edge_id with a single value or edge_keys and edge_values with ratios.

Parameters
objectsGeoDataFrame

A GeoDataFrame containing objects to snap.

nodesGeoDataFrame

A GeoDataFrame containing street nodes with unique node IDs. If there is none, it can be generated by momepy.unique_id().

edgesGeoDataFrame

A GeoDataFrame containing street edges with unique edge IDs and IDs of start and end points of each segment. Start and endpoints are default outcome of momepy.nx_to_gdf().

node_idstr, list, np.array, pd.Series

The name of the nodes dataframe column, np.array, or pd.Series with a unique ID.

edge_idstr (default None)

The name of the objects dataframe column with unique edge IDs (like an outcome of momepy.get_network_id()).

edge_keysstr (default None)

The name of the objects dataframe column with edgeID_keys (like an outcome of momepy.get_network_ratio()).

edge_valuesstr (default None)

The name of the objects dataframe column with edgeID_values (like an outcome of momepy.get_network_ratio()).

verbosebool (default True)

If True, shows progress bars in loops and indication of steps.

Returns
node_idsSeries

A Series containing node the ID for objects.