利用geopy从多边形几何中获取中心位置

Question

我在为我所在城市的每个街区找一个位置。我想要一个单一的lat/log对每个社区，这样我就可以使用它与folium。地方政府以GEO-JSON的形式提供开放数据，但它包含周长、面积和限制。你知道吗

这是完整的文件：http://cdn.buenosaires.gob.ar/datosabiertos/datasets/barrios/barrios.geojson

这是一个例子：

features": [
{
"type": "Feature",
"properties": {
"barrio": "CHACARITA",
"comuna": 15,
"perimetro": 7724.85295457,
"area": 3115707.10627
},
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-58.4528200492791,
-34.5959886570639
],
[
-58.453655193137,
-34.5965557163041
],
[
-58.4537674321647,
-34.5966342484152
],
[
-58.4538163134148,
-34.5966684788922
],
[
-58.4547947928051,
-34.5973527273644
],
[
-58.4554840815948,
-34.5978347610252
],
[
-58.4559204833296,
-34.5976953435829
],
[
-58.4560093721285,
-34.5976669530232
],
[
-58.4560576047802,
-34.5976515472868
],
[
-58.4562363723257,
-34.5975900748435
],
[
-58.4564940053845,
-34.597501563774
],
[
-58.4570733158433,
-34.5973024999733
],
[
-58.4576142986162,
-34.5971165306991
],
[
-58.4578298572666,
-34.5970394940224
],
[
-58.4579314199407,
-34.5970031094655
],
[
-58.4579383597537,
-34.5970006235554
],
[
-58.457939151188,
-34.5970004324802
],
[
-58.4580314840712,
-34.5969781271249
],
[
-58.4582467474022,
-34.5969261254882
],
[
-58.4592081863103,
-34.5966936826245
],
[
-58.4592753814056,
-34.5966774864904
],
[
-58.4607717313584,
-34.5965908256843
],
[
-58.461008489241,
-34.5965771669178
],
[
-58.461500184562,
-34.5965469590603
],
[
-58.4615048306101,
-34.5965466787569
],
[
-58.4623220712384,
-34.5965110490604
],
[
-58.4624802220071,
-34.5965042183086
],
[
-58.4625206541306,
-34.5965018079147
],
[
-58.4637678264729,
-34.5964274496069
],
[
-58.4638637221527,
-34.5964294210885
],
[
-58.4646140234657,
-34.5964785682445
],
[
-58.4651592721924,
-34.5965757917791
],
[
-58.4651613793847,
-34.5965761676386
],
[
-58.4652710724273,
-34.5966020115654
],
[
-58.465339885911,
-34.5966119403979
],
[
-58.4654505835153,
-34.59661891152
],
[
-58.4655402165487,
-34.5966463016308
],
[
-58.4656201094845,
-34.5967043067336
],
[
-58.4655768128541,
-34.5965577078058
],
[
-58.465554434696,
-34.5964822872553
],
[
-58.4655118251641,
-34.5963386864843
],
[
-58.4654546732526,
-34.5961458635988
],
[
-58.4651988343882,
-34.5953364276981
],
[
-58.4650736836825,
-34.5949011987359
],
[
-58.4648267024928,
-34.5940422724471
],
[
-58.4644540217146,
-34.5927935584922
],
[
-58.4643817851099,
-34.5925515163591
],
[
-58.4644091198271,
-34.592467286843
],
[
-58.4650280527625,
-34.591936410724
],
[
-58.4658796865855,
-34.5912081588557
],
[
-58.4660489985854,
-34.5910867180571
],
[
-58.4663928573575,
-34.5908622593099
],
[
-58.4665306488686,
-34.5907723125485
],
[
-58.4665923016107,
-34.5907351963295
],
[
-58.4668281722696,
-34.5905930920952
],
[
-58.4657830008229,
-34.5896043925249
],
[
-58.4645332635208,
-34.5884221360889
],
[
-58.4630744816449,
-34.5870649213261
],
[
-58.4629751205092,
-34.5869805400343
],
[
-58.461952645947,
-34.5861122031234
],
[
-58.4618702043843,
-34.5860421891544
],
[
-58.4614638213396,
-34.5858332613902
],
[
-58.4603788016938,
-34.5855276845223
],
[
-58.4604139194362,
-34.5854024167589
],
[
-58.4604462802733,
-34.5852877643506
],
[
-58.4604255057231,
-34.5852032534777
],
[
-58.4604706411008,
-34.5850361353814
],
[
-58.4605356159209,
-34.5849439493523
],
[
-58.4605345318123,
-34.5840461665945
],
[
-58.4605331978237,
-34.5829502757213
],
[
-58.460531948912,
-34.5818532587471
],
[
-58.4605306146064,
-34.580772157502
],
[
-58.4605292809645,
-34.5796668306049
],
[
-58.4605276992685,
-34.5782946601008
],
[
-58.4605232166307,
-34.5782946690354
],
[
-58.4602248340306,
-34.5782952880515
],
[
-58.4601985594291,
-34.5782953479127
],
[
-58.4601021385732,
-34.5782955676544
],
[
-58.4597845714173,
-34.5783147333419
],
[
-58.4596950535931,
-34.5783201362424
],
[
-58.4585384246269,
-34.5783900346815
],
[
-58.4577639164538,
-34.57843681251
],
[
-58.4577436676417,
-34.5784380358534
],
[
-58.4573407479054,
-34.5785467557746
],
[
-58.457161766713,
-34.5785949886772
],
[
-58.4571475839219,
-34.5785988155734
],
[
-58.4559708829345,
-34.5789162808655
],
[
-58.4553992793144,
-34.579070479135
],
[
-58.4548623268909,
-34.5792427067768
],
[
-58.453533474128,
-34.5796688999369
],
[
-58.4530206113015,
-34.5798333742389
],
[
-58.4521930272086,
-34.5800988095872
],
[
-58.4521387166742,
-34.5801162118211
],
[
-58.4520222992006,
-34.5801535152443
],
[
-58.4512517652657,
-34.5804006516243
],
[
-58.451017590163,
-34.5804757586408
],
[
-58.4510096596172,
-34.5804789048291
],
[
-58.450952449802,
-34.5805016004481
],
[
-58.4505172245318,
-34.5806742198247
],
[
-58.4499989853758,
-34.5808797606534
],
[
-58.4496743253071,
-34.5810085114951
],
[
-58.449595440632,
-34.5810397949394
],
[
-58.4494416523924,
-34.5810963999448
],
[
-58.4491919812231,
-34.5811882776714
],
[
-58.448459568068,
-34.5814579241167
],
[
-58.4483934029757,
-34.5814822833589
],
[
-58.4483258230482,
-34.5815071661386
],
[
-58.4482895615355,
-34.5815205167813
],
[
-58.4482796339798,
-34.5815241718727
],
[
-58.4482750418364,
-34.5815261463976
],
[
-58.4480518326744,
-34.5816220940359
],
[
-58.4470924721564,
-34.5820344712672
],
[
-58.4461817147653,
-34.5824259258651
],
[
-58.4457859875885,
-34.5825960105066
],
[
-58.4446425154933,
-34.5830874842646
],
[
-58.4444715140105,
-34.5831609807395
],
[
-58.4444485731026,
-34.5831708409276
],
[
-58.4444069042627,
-34.583188756327
],
[
-58.4443997765097,
-34.5831918210746
],
[
-58.4444002339388,
-34.5831933878554
],
[
-58.4447856534,
-34.5845135514129
],
[
-58.4445857679104,
-34.5846657823276
],
[
-58.4434772519387,
-34.5854009946445
],
[
-58.4424251828668,
-34.5860987403321
],
[
-58.4413975399073,
-34.586780283069
],
[
-58.441089226108,
-34.5869846738708
],
[
-58.4401565270955,
-34.5876011493313
],
[
-58.4393890485044,
-34.5881083499955
],
[
-58.4386143204607,
-34.5886204031453
],
[
-58.4385455945534,
-34.5886617712813
],
[
-58.4385357500838,
-34.5886677008384
],
[
-58.4385362274348,
-34.5886679479287
],
[
-58.4385831147669,
-34.5886918427826
],
[
-58.4386416493153,
-34.5887216732237
],
[
-58.4506005822013,
-34.5943989522846
],
[
-58.4506310848741,
-34.5944213498744
],
[
-58.4509568590193,
-34.5946605554372
],
[
-58.4517045016343,
-34.5952095178055
],
[
-58.451886479147,
-34.5953370036164
],
[
-58.4520837007571,
-34.5954757585265
],
[
-58.4526072418644,
-34.5958441274193
],
[
-58.4528200492791,
-34.5959886570639
]
]
]
}
}

我要做的是为每个社区获得一个lat/lon对。有办法计算吗？我一直在四处张望，但我能想清楚。？也许地质学不是解决这个问题的工具？你知道吗

谢谢你的指导

干杯。你知道吗

Answer 1

地质学绝对不是解决这个问题的工具。geopy是地理编码服务的包装器，而您需要一个几何引擎，例如shapely。你知道吗

import requests
from shapely.geometry import shape


collection = requests.get('http://cdn.buenosaires.gob.ar/datosabiertos/datasets/barrios/barrios.geojson').json()
features = collection["features"]
for feature in features:
    s = shape(feature["geometry"])
    print(s.centroid)

这将产生以下结果：

POINT (-58.4541801235578 -34.58836865970172)
POINT (-58.46866483674238 -34.59742117689778)
POINT (-58.44272494823578 -34.59882966797721)
POINT (-58.49067707673827 -34.60424663818866)
POINT (-58.4217445234198 -34.60922725926523)
POINT (-58.44360306345074 -34.61682541891132)
POINT (-58.48295678746965 -34.61619345688689)
POINT (-58.50658094855392 -34.61929776178798)
...