【Geopandas】提取组成Polygon对象的点的坐标
·
思路
先将geometry转为json格式，再从json中提取各个多边形的点的坐标
代码
import geopandas as gs
import json
gdf = gs.read_file("F:\\Zhujie\\JY_Data\\test_blocks.shp")
polygon = gdf.geometry.to_json()
polygon_dict = json.loads(polygon)
print(polygon_dict["features"][0]["geometry"]["coordinates"][0])
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Polygon的JSON格式示意
{
"type":"FeatureCollection",
"features":[
{
"id":"0",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38252.22289886114,
26990.60187920509
],
[
38250.09489885916,
26956.393047173216
],
[
38183.25694679691,
26964.288855180555
],
[
38185.645106799144,
26993.967959208243
],
[
38252.22289886114,
26990.60187920509
]
]
]
},
"bbox":[
38183.25694679691,
26956.393047173216,
38252.22289886114,
26993.967959208243
]
},
{
"id":"1",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38373.378098973975,
26911.757975131688
],
[
38370.98981097175,
26879.424855101566
],
[
38369.98712297081,
26868.49704709137
],
[
38373.1820029738,
26863.740055086964
],
[
38370.804018971576,
26831.978839057385
],
[
38350.94891495308,
26834.60283905978
],
[
38342.8060029455,
26835.522967060682
],
[
38331.841010935284,
26837.474967062473
],
[
38312.72504291748,
26842.325847067
],
[
38299.58981090525,
26847.145879071497
],
[
38278.116914885264,
26856.62197508029
],
[
38249.999922859075,
26869.438039092234
],
[
38240.701042850415,
26873.543063096065
],
[
38240.55710685026,
26878.99688710115
],
[
38243.767154853274,
26900.2259431209
],
[
38267.71089887556,
26898.191959118998
],
[
38267.90795487576,
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],
[
38271.71211487929,
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],
[
38275.20209888255,
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],
[
38343.19390694588,
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],
[
38363.4371069647,
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],
[
38365.942002967065,
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],
[
38367.549042968545,
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],
[
38368.9028989698,
26921.338967140593
],
[
38370.57489897136,
26919.62683913898
],
[
38372.60011497327,
26916.786071136365
],
[
38373.408114974016,
26914.840983134523
],
[
38373.378098973975,
26911.757975131688
]
]
]
},
"bbox":[
38240.55710685026,
26831.978839057385,
38373.408114974016,
26934.057047152426
]
},
{
"id":"2",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38620.64805120428,
26735.126870967157
],
[
38651.991155233445,
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],
[
38634.49912321716,
26631.0398948702
],
[
38627.37489921053,
26630.73704686994
],
[
38603.38200318819,
26736.172950968146
],
[
38605.10110718978,
26757.667990988182
],
[
38620.62590720423,
26757.05506298755
],
[
38621.88504320541,
26750.163094981166
],
[
38618.55480320231,
26745.590870976917
],
[
38620.64805120428,
26735.126870967157
]
]
]
},
"bbox":[
38603.38200318819,
26628.959062868264,
38651.991155233445,
26757.667990988182
]
},
{
"id":"3",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38112.52190673104,
26999.999895213812
],
[
38112.97790673145,
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],
[
38112.024114730564,
26993.981079208257
],
[
38111.82801873039,
26993.166999207464
],
[
38111.12504272973,
26991.079063205514
],
[
38110.1279227288,
26989.042071203647
],
[
38108.91915472769,
26987.214999201944
],
[
38107.825010726665,
26985.911959200694
],
[
38106.72011472565,
26984.82395919971
],
[
38105.04190672408,
26983.494039198442
],
[
38103.407922722545,
26982.487959197548
],
[
38101.443122720724,
26981.579863196705
],
[
38100.1428987195,
26981.13499919628
],
[
38098.80990671826,
26980.79496719595
],
[
38052.62705867525,
26983.533975198516
],
[
38053.00190667561,
27009.18799122243
],
[
38111.95301073051,
27006.02997521946
],
[
38112.52190673104,
26999.999895213812
]
]
]
},
"bbox":[
38052.62705867525,
26980.79496719595,
38112.97790673145,
27009.18799122243
]
},
{
"id":"4",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38533.143155122765,
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],
[
38529.569011119434,
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],
[
38453.76581104883,
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],
[
38426.91000302383,
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],
[
38421.73912301902,
26936.183959154412
],
[
38403.520115002066,
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],
[
38401.90392300054,
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],
[
38399.880050998654,
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],
[
38398.12901099702,
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],
[
38396.66801899567,
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],
[
38395.733042994805,
26945.791895163362
],
[
38395.27512299436,
26947.31995916477
],
[
38395.27889899438,
26951.60687116877
],
[
38395.769906994836,
26958.92795917561
],
[
38533.143155122765,
26945.192087162814
]
]
]
},
"bbox":[
38395.27512299436,
26921.68488714093,
38533.143155122765,
26958.92795917561
]
},
{
"id":"5",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38048.35691467129,
26956.212055173066
],
[
38045.519922668645,
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],
[
37920.581810552285,
26902.367063122918
],
[
37856.90712249297,
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],
[
37848.40504248505,
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],
[
37796.31390643655,
26909.777047129817
],
[
37800.4481144404,
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],
[
37956.30501058556,
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],
[
38000.00011462625,
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],
[
38048.35691467129,
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]
]
]
},
"bbox":[
37796.31390643655,
26893.395095114538,
38048.35691467129,
26973.62696718925
]
},
{
"id":"6",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
38436.5231230328,
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],
[
38403.58609900211,
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],
[
38401.05201899973,
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],
[
38400.297010999064,
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],
[
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],
[
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
[
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],
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]
]
]
},
"bbox":[
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38523.16811511349,
26749.26805498032
]
},
{
"id":"7",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
37826.4300024646,
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],
[
37795.95390643622,
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],
[
37778.86705842029,
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],
[
37812.42405045155,
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],
[
37826.4300024646,
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]
]
]
},
"bbox":[
37778.86705842029,
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26545.236054790323
]
},
{
"id":"8",
"type":"Feature",
"properties":{
},
"geometry":{
"type":"Polygon",
"coordinates":[
[
[
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],
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],
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],
[
38425.99889902299,
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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],
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]
]
]
},
"bbox":[
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]
}
],
"bbox":[
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]
}
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