simwrapper/scripts/create-rvr-geojson-network.py at master · tomstephen/simwrapper · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
# matsim network converter
try:
    import sys, json, gzip
    import matsim
    from dfply import *
    from pyproj import Transformer
except:
    print("OOPS! Error importing required libraries.")
    print('try "pip3 install matsim-tools dfply pyproj"')

if len(sys.argv) != 3:
    print(
        "USAGE:  python create-geojson-network.py  [network]  [coord-system]"
    )
    sys.exit(1)


# keep = {'length', 'freespeed','capacity','permlanes','modes',
#         "zoneGroup", 'allowed_speed','bicycleInfrastructureSpeedFactor',
#         "origid", "surface", "type", "zoneName"
#         }
keep = {'length', "type" }
print('Keeping columns:', keep)

p_network = sys.argv[1]
p_coords = sys.argv[2]
out_file = p_network + ".geojson.gz"

coord_transformer = Transformer.from_crs(p_coords, "EPSG:4326")

print("reading network:", p_network)
network = matsim.read_network(p_network)

# Build link x/y lookup
nodes = network.nodes >> mutate(to_node=X.node_id, from_node=X.node_id)


links = (
    network.links
    >> inner_join(nodes, by="from_node")
    >> mutate(x0=X.x, y0=X.y, to_node=X.to_node_x)
    >> inner_join(nodes, by="to_node")
    >> rename(from_node=X.node_id_x, to_node=X.node_id_y)
    >> drop(['x_x', 'y_x', 'z_x','z_y','to_node'])
)
    # >> select(X.link_id, X.from_node, X.to_node_x, X.x, X.y)
    # >> select(X.link_id, X.x0, X.y0, X.x_y, X.y_y)

# insert column with insert(location, column_name, column_value)
column_to_move = links.pop("link_id")
links.insert(0, "link_id", column_to_move)

column_to_move = links.pop("x0")
links.insert(1, "x0", column_to_move)
column_to_move = links.pop("y0")
links.insert(2, "y0", column_to_move)
column_to_move = links.pop("x_y")
links.insert(3, "x_y", column_to_move)
column_to_move = links.pop("y_y")
links.insert(4, "y_y", column_to_move)

link_basics = {}

# convert coords to lat/lon
print("reprojecting coordinates")

converted_links = {}
for link in links.values:
    coords = []

    fromY, fromX = coord_transformer.transform(link[1],link[2])
    coords.extend([round(fromX, 6), round(fromY, 6)])
    toY, toX = coord_transformer.transform(link[3], link[4])
    coords.extend([round(toX, 6), round(toY, 6)])

    converted_links[link[0]] = coords

links = (
    links >> drop(['x0','y0','x_y','y_y','from_node_x', 'from_node_y', 'to_node_x', 'to_node_y'])
)

columnsList = links.columns.tolist()[1:]

# one more lookup
for zlink in links.values:
    props = {}
    b = 0
    for col in columnsList:
        b += 1
        if col not in keep: continue
        props[col] = zlink[b]
    link_basics[zlink[0]] = props

# convert to geojson
print("creating geojson")
geojson = {
    "type": "FeatureCollection",
    "features": []
}

# think about link attributes
attributes = {}
for attr in network.link_attrs.values:
    if attr[1] not in keep: continue
    linkID = attr[0]
    if linkID not in attributes: attributes[linkID] = {}
    attributes[linkID][attr[1]] = attr[2]

# for link in link.values:

for link_id in converted_links:
    points = converted_links[link_id]
    merged_props = link_basics[link_id]
    attrMega = attributes.get(link_id) or {}
    merged_props.update(attrMega)

    geojson["features"].append({
        "type": "Feature",
        "id": link_id,
        "properties": merged_props,
        "geometry": {
            "type": "LineString",
            "coordinates": [ [points[0],points[1]], [points[2],points[3]]]
        }
    })


# write it out
print("writing:", out_file)
#links_bytes = json.dumps(geojson, separators=(',',":")).encode("utf-8")
links_bytes = json.dumps(geojson).encode("utf-8")

with gzip.open(out_file, "wb") as f:
    f.write(links_bytes)

print(len(converted_links), "links written.")