How to use the osmnx.graph_from_place function in osmnx

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github gboeing / osmnx / tests / test_osmnx.py View on Github external
def test_osm_xml_output():
    G = ox.graph_from_place('Piedmont, California, USA')
    ox.save_graph_osm(G)
github martinfleis / momepy / tests / test_utils.py View on Github external
G = networkx.MultiGraph()
        key = 0
        for index, row in self.df_streets.iterrows():
            first = row.geometry.coords[0]
            last = row.geometry.coords[-1]

            data = [row[f] for f in list(self.df_streets.columns)]
            attributes = dict(zip(list(self.df_streets.columns), data))
            G.add_edge(first, last, key=key, **attributes)
            key += 1
        nodes, edges = mm.nx_to_gdf(G)
        assert len(nodes) == 29
        assert len(edges) == 35

        # osmnx compatibility
        G = ox.graph_from_place("Preborov, Czechia", network_type="drive")
        pts, lines = mm.nx_to_gdf(G)
        assert len(pts) == 7
        assert len(lines) == 16

        # LineString Z
        line1 = LineString([(0, 0, 0), (1, 1, 1)])
        line2 = LineString([(0, 0, 0), (-1, -1, -1)])
        gdf = gpd.GeoDataFrame(geometry=[line1, line2])
        G = mm.gdf_to_nx(gdf)
        pts, lines = mm.nx_to_gdf(G)
        assert pts.iloc[0].geometry.wkt == "POINT Z (0 0 0)"
        assert lines.iloc[0].geometry.wkt == "LINESTRING Z (0 0 0, 1 1 1)"
github gboeing / osmnx / tests / test_osmnx.py View on Github external
def test_plots():
    G = ox.graph_from_place('Piedmont, California, USA', network_type='drive', simplify=False)
    G2 = ox.simplify_graph(G, strict=False)

    # test getting colors
    co = ox.get_colors(n=5, return_hex=True)
    nc = ox.get_node_colors_by_attr(G2, 'osmid')
    ec = ox.get_edge_colors_by_attr(G2, 'length')

    # save a plot to disk as png
    fig, ax = ox.plot_graph(G, save=True, file_format='png')

    # save a plot to disk as svg
    G_simplified = ox.simplify_graph(G)
    fig, ax = ox.plot_graph(G_simplified, show=False, save=True, close=True, file_format='svg')

    G_projected = ox.project_graph(G_simplified)
    fig, ax = ox.plot_graph(G_projected)
github gboeing / osmnx / tests / test_osmnx.py View on Github external
G1 = ox.graph_from_bbox(north, south, east, west, network_type='drive_service')
    G1 = ox.graph_from_bbox(north, south, east, west, network_type='drive_service', truncate_by_edge=True)

    # graph from point
    location_point = (37.791427, -122.410018)
    bbox = ox.bbox_from_point(location_point, project_utm=True)
    G2 = ox.graph_from_point(location_point, distance=750, distance_type='bbox', network_type='drive')
    G3 = ox.graph_from_point(location_point, distance=500, distance_type='network')

    # graph from address
    G4 = ox.graph_from_address(address='350 5th Ave, New York, NY', distance=1000, distance_type='network',
                               network_type='bike')

    # graph from list of places
    places = ['Los Altos, California, USA', {'city': 'Los Altos Hills', 'state': 'California'}, 'Loyola, California']
    G5 = ox.graph_from_place(places, network_type='all', clean_periphery=False)

    # graph from polygon
    polygon = wkt.loads(
        'POLYGON ((-122.418083 37.754154, -122.418082 37.766028, -122.410909 37.766028, -122.410908 37.754154, -122.418083 37.754154))')
    G6 = ox.graph_from_polygon(polygon, network_type='walk')

    # test custom query filter
    filtr = ('["area"!~"yes"]'
             '["highway"!~"motor|proposed|construction|abandoned|platform|raceway"]'
             '["foot"!~"no"]'
             '["service"!~"private"]'
             '["access"!~"private"]')
    G = ox.graph_from_point(location_point, network_type='walk', custom_filter=filtr)
github gboeing / osmnx / tests / test_osmnx.py View on Github external
def test_overpass():
    import pytest

    # Test changing the endpoint. This should fail because we didn't provide a valid endpoint
    ox.config(
        overpass_endpoint="http://NOT_A_VALID_ENDPOINT/api/"
    )
    with pytest.raises(Exception):
        G = ox.graph_from_place('Piedmont, California, USA')

    ox.config(overpass_endpoint="http://overpass-api.de/api")
github gboeing / osmnx / tests / test_osmnx.py View on Github external
def test_network_saving_loading():
    # save/load graph as shapefile and graphml file
    G = ox.graph_from_place('Piedmont, California, USA')
    G_projected = ox.project_graph(G)
    ox.save_graph_shapefile(G_projected)
    ox.save_graphml(G_projected)
    ox.save_graphml(G_projected, filename='gephi.graphml', gephi=True)
    G2 = ox.load_graphml('graph.graphml')
    G3 = ox.load_graphml('graph.graphml', node_type=str)

    # convert graph to node/edge GeoDataFrames and back again
    gdf_nodes, gdf_edges = ox.graph_to_gdfs(G, nodes=True, edges=True, node_geometry=True, fill_edge_geometry=True)
    G4 = ox.gdfs_to_graph(gdf_nodes, gdf_edges)

    # find graph nodes nearest to some set of points
    X = gdf_nodes['x'].head()
    Y = gdf_nodes['y'].head()
    nn1 = ox.get_nearest_nodes(G, X, Y)
    nn2 = ox.get_nearest_nodes(G, X, Y, method='kdtree')
github PacktPublishing / Learning-Geospatial-Analysis-with-Python-Third-Edition / Chapter04 / B13346_04_32-osmnx.py View on Github external
import osmnx as ox
G = ox.graph_from_place('Bay Saint Louis, MS , USA', network_type='drive')
stats = ox.basic_stats(G)
print(stats["street_length_avg"])