pyl7vp 支持 GeoDataFrame 类型

[lvisei]

当前使用 GeoDataFrame 类型的方式

import pandas as pd
import geopandas
import shapely.wkt
from shapely import to_geojson
import json

gdf = geopandas.read_file("xx.geojson")

# convert geodataframe to dataframe
df = pd.DataFrame(gdf)

name = gdf.geometry.name

# convert shapely.geometry to geometry
df[name] = df.geometry.apply(lambda x: json.loads(to_geojson(x)))

# or convert shapely.geometry to wkt
# df[name] = df.geometry.apply(lambda x: shapely.wkt.dumps(x))

l7vp_map.add_dataset({"id": "my_dataset", "type": 'local', "data": df})

pyl7vp 支持 GeoDataFrame 类型后

from shapely.geometry import Point
d = {'col1': ['name1', 'name2'], 'geometry': [Point(1, 2), Point(2, 1)]}
gdf = geopandas.GeoDataFrame(d, crs="EPSG:4326")

l7vp_map.add_dataset({"id": "my_dataset", "type": 'local', "data": gdf})

import pandas as pd
d = {'col1': ['name1', 'name2'], 'wkt': ['POINT (1 2)', 'POINT (2 1)']}
df = pd.DataFrame(d)
gs = geopandas.GeoSeries.from_wkt(df['wkt'])
gdf = geopandas.GeoDataFrame(df, geometry=gs, crs="EPSG:4326")

l7vp_map.add_dataset({"id": "my_dataset", "type": 'local', "data": gdf})

gdf = geopandas.read_file("xx.geojson")

l7vp_map.add_dataset({"id": "my_dataset", "type": 'local', "data": gdf})

考虑点

如果内置 geopandas，geopandas 依赖 C 写的 (GEOS, GDAL, PROJ)，以后安装 pyl7vp 会有些难安装。