I'm currently trying to read a shape file into a geopandas dataframe. Once in, I am then trying to write the dataframe to a postgres database with postgis this way: df.postgis.to_postgis(con=eng, table_name=fl_nm, geometry='Polygon', if_exists='append', chunksize=20000,...
数据库数据都写入到列表之后,我们就只需要对列表进行一下简单的拼接就可以保存shp文件了,你可以使用.to_file命令导出shp格式或者是geojson格式数据,也可以使用.to_postgis命令导出到空间数据库中。 fordbintqdm(layers):df=pd.DataFrame()dfname=str(type_table[type_table["图层"]==db]["数据分层"].tolist()...
类方法GeoDataFrame.from_postgis(sql,con,geom_col='geom',crs=None,index_col=None,coerce_float=True,params=None) 从PostGIS数据库文件中加载GeoDataFrame。 GeoSeries.to_crs(crs=None,epsg=None,inplace=False) 转换GeoDataFrame的geometry列中的所有几何图形到其他坐标参考系统。当前GeoSeries的crs属性必须被...
geopandas是建立在GEOS、GDAL、PROJ等开源地理空间计算相关框架之上的,类似pandas语法风格的空间数据分析Python库,其目标是尽可能地简化Python中的地理空间数据处理,减少对Arcgis、PostGIS等工具的依赖,使得处理地理空间数据变得更加高效简洁,打造纯Python式的空间数据处理工作流。本系列文章就将围绕geopandas及其使用过程中涉...
The PostGIS IO functionality now quotes table names to ensure it works with case-sensitive names (#1825). Fix the GeoSeries constructor without passing data but only an index (#1798).Notes on (optional) dependencies:GeoPandas 0.9.0 dropped support for Python 3.5. Further, the minimum required...
ENH: support for sqlalchemy connections in to_postgis to support exte… eabe404· Jan 14, 2021 History1,313 Commits .github CI: add Python3.9 to CI matrix (geopandas#1703) Nov 27, 2020 benchmarks ENH: add public has_sindex method (geopandas#1627) Nov 11, 2020 ci/envs DEP: No ...
2.5 to_file()方法在driver参数缺省时可自动识别导出文件类型 在新版本中,若未在to_file()中指定driver参数,geopandas会自动根据文件后缀名来自动推断要导出的矢量文件类型: 代码语言:javascript 复制 importos gdf1.to_file('test.shp')gdf1.to_file('test.geojson')[fileforfileinos.listdir()if'test.'infi...
Change geopandas column value from postgis query I have some QGIS layers and I am performing some spatial queries with them using GeoPandas. I'm using psycopg2 to make a connection to a local PostgreSQL/PostGIS database. Then I use the read_postgis()... ...
s.to_file(tempfilename) 开发者ID:silky,项目名称:geopandas,代码行数:7,代码来源:test_geodataframe.py 示例6: main ▲点赞 1▼ defmain():# Read in Datagrid =GeoDataFrame.from_file(igrid) points = pd.read_csv(ipoints)# create geopointsgeopoints = points2geo(points, lat, lon)# match ...
I'm facing the following error with GeoPandas 0.12.2 when trying to write a very simple GeoDataFrame containing simple points into an existing PostGIS database: import geopandas as gpd from sqlalchemy import create_engine # stuff... engine = create_engine("postgresql+psycopg:...