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base_network: return zero underwater fraction if no link geometry given (closes #53)

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fixes #53
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Fabian Neumann 2019-08-11 16:59:56 +02:00 committed by GitHub
parent 4a6355265b
commit f7159de47f
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1 changed files with 7 additions and 4 deletions
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scripts/base_network.py
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@ -412,6 +412,9 @@ def _replace_b2b_converter_at_country_border_by_link(n):
def _set_links_underwater_fraction(n):
if n.links.empty: return
if not hasattr(n.links, 'geometry'):
n.links['underwater_fraction'] = 0.
else:
offshore_shape = gpd.read_file(snakemake.input.offshore_shapes).unary_union
links = gpd.GeoSeries(n.links.geometry.dropna().map(shapely.wkt.loads))
n.links['underwater_fraction'] = links.intersection(offshore_shape).length / links.length