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This commit is contained in:
Andras Schmelczer 2026-05-31 20:20:41 +01:00
parent 8688b7475e
commit e8345cbdc1
40 changed files with 1980 additions and 904 deletions
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6
pipeline/utils/postcode_mapping.py
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@ -13,7 +13,11 @@ def build_postcode_mapping(arcgis_path: Path) -> pl.DataFrame:
Uses OS National Grid coordinates (east1m, north1m) which are Cartesian metres,
so Euclidean distance via cKDTree gives accurate results without projection.
"""
arcgis = pl.scan_parquet(arcgis_path).filter(pl.col("ctry25cd") == "E92000001")
arcgis = (
pl.scan_parquet(arcgis_path)
.filter(pl.col("ctry25cd") == "E92000001")
.with_columns(pl.col("doterm").cast(pl.Utf8).alias("doterm"))
)
active = (
arcgis.filter(pl.col("doterm").is_null())