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build_shapes: replace unary union from shapely by geopandas equivalent

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Fabian 2023-02-07 14:07:44 +01:00
parent c25f02d681
commit efedfa945b
1 changed files with 2 additions and 3 deletions
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5
scripts/build_shapes.py
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@ -80,7 +80,6 @@ import pandas as pd
import pycountry as pyc import pycountry as pyc
from _helpers import configure_logging from _helpers import configure_logging
from shapely.geometry import MultiPolygon, Polygon from shapely.geometry import MultiPolygon, Polygon
from shapely.ops import unary_union
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@ -158,8 +157,7 @@ def country_cover(country_shapes, eez_shapes=None):
shapes = country_shapes shapes = country_shapes
if eez_shapes is not None: if eez_shapes is not None:
shapes = pd.concat([shapes, eez_shapes]) shapes = pd.concat([shapes, eez_shapes])
europe_shape = shapes.unary_union
europe_shape = unary_union(shapes)
if isinstance(europe_shape, MultiPolygon): if isinstance(europe_shape, MultiPolygon):
europe_shape = max(europe_shape, key=attrgetter("area")) europe_shape = max(europe_shape, key=attrgetter("area"))
return Polygon(shell=europe_shape.exterior) return Polygon(shell=europe_shape.exterior)
@ -265,6 +263,7 @@ if __name__ == "__main__":
) )
offshore_shapes.reset_index().to_file(snakemake.output.offshore_shapes) offshore_shapes.reset_index().to_file(snakemake.output.offshore_shapes)
europe_shape = gpd.GeoDataFrame( europe_shape = gpd.GeoDataFrame(
geometry=[country_cover(country_shapes, offshore_shapes.geometry)] geometry=[country_cover(country_shapes, offshore_shapes.geometry)]
) )