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Fix deprecated unary_union in mergeinstances #9

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Fix deprecated unary_union in mergeinstances #9

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17 changes: 12 additions & 5 deletions src/instancemaker/mergeinstances.py
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Original file line number Diff line number Diff line change
Expand Up @@ -342,12 +342,19 @@ def process_tile_at(self, target_tile):
logging.warning(f"No polygons found for tile {target_tile}")
return False



# Combine all polygons
logging.debug("Combining polygons from adjacent tiles")
all_combine = pd.concat(retrieved_polygons,
ignore_index=True).unary_union
polygons = list(all_combine.geoms)
logging.debug(f"Combined into {len(polygons)} polygons")
all_combine = pd.concat(
retrieved_polygons,
ignore_index=True
).geometry.union_all()

if all_combine.geom_type == "Polygon":
polygons = [all_combine]
else:
polygons = list(all_combine.geoms)


# Assign polygons to tiles
tile_polygons = {tile['tilename']: [] for tile in adjacent_tiles}
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