shapefile到geojson转换python 3
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【中文标题】shapefile到geojson转换python 3【英文标题】:Shapefile into geojson conversion python 3 【发布时间】:2017-08-24 10:45:12 【问题描述】:output_buffer = []
for features in range(0,layer.GetFeatureCount()):
feat = layer.GetNextFeature()
geom = feat.GetGeometryRef()
result = feat.ExportToJson()
output_buffer.append(result)
当我转换成 geojson 时,我得到了输出,但只有一个特征被格式化为 JSON
我得到这样的输出:
"geometry": "coordinates": [488081.726322771, 2360837.62927308], "type": "Point", "type": "Feature", "id": 0, "properties": "EntityHand": null, "Layer": "pipe", "Linetype": null, "Text": "BB_D2", "ExtendedEn": null, "SubClasses": null"geometry": "coordinates": [487523.119248441, 2361228.95273474], "type": "Point", "type": "Feature", "id": 1, "properties": "EntityHand": null, "Layer": "pipe", "Linetype": null, "Text": "Mil_D2", "ExtendedEn": null, "SubClasses": null..................
我想得到这样的输出:
"geometry": "coordinates": [488081.726322771, 2360837.62927308], "type": "Point", "type": "Feature", "id": 0, "properties": "EntityHand": null, "Layer": "pipe", "Linetype": null, "Text": "BB_D2", "ExtendedEn": null, "SubClasses": null**,**
"geometry": "coordinates": [487523.119248441, 2361228.95273474], "type": "Point", "type": "Feature", "id": 1, "properties": "EntityHand": null, "Layer": "pipe", "Linetype": null, "Text": "Mil_D2", "ExtendedEn": null, "SubClasses": null**,**
【问题讨论】:
请将您的问题格式化为清晰易读的内容... 如果您提供一个工作示例会有所帮助。如果您的问题无法复制,则无法回答。 @RutgerKassies。正确的程序是在这种情况下进行适当的近距离投票。 你在用什么库? 嘿,Srinuvas Bathula:这个答案获得了很多关注,已经快 3 年了。由于这是唯一的答案,并且问题和答案得到了相当多的积极反馈,您介意将其标记为正确吗? :) 【参考方案1】:请查看以下库:https://pypi.python.org/pypi/pyshp/1.1.7
import shapefile
from json import dumps
# read the shapefile
reader = shapefile.Reader("my.shp")
fields = reader.fields[1:]
field_names = [field[0] for field in fields]
buffer = []
for sr in reader.shapeRecords():
atr = dict(zip(field_names, sr.record))
geom = sr.shape.__geo_interface__
buffer.append(dict(type="Feature", \
geometry=geom, properties=atr))
# write the GeoJSON file
geojson = open("pyshp-demo.json", "w")
geojson.write(dumps("type": "FeatureCollection", "features": buffer, indent=2) + "\n")
geojson.close()
如其他答案所述,您可以使用 geopandas:
import geopandas
shp_file = geopandas.read_file('myshpfile.shp')
shp_file.to_file('myshpfile.geojson', driver='GeoJSON')
【讨论】:
【参考方案2】:对于 shapefile 和 geojson 之间的转换,我肯定会使用 geopandas:
import geopandas
myshpfile = geopandas.read_file('myshpfile.shp')
myshpfile.to_file('myJson.geojson', driver='GeoJSON')
【讨论】:
【参考方案3】:添加到@alexisdevarennes。
您现在可以使用 PyShp 在 1 或 2 行中转换为 geojson:
import shapefile
with shapefile.Reader("shapefile.shp") as shp:
geojson_data = shp.__geo_interface__
或
geojson_data = shapefile.Reader("shapefile.shp").__geo_interface__
示例用法:
>>> geojson_data["type"]
'MultiPolygon'
【讨论】:
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