vibes

pipeline/transform/postcode_boundaries/__init__.py

@@ -8,9 +8,10 @@ Algorithm per OA:
   1. Single-postcode OA → entire OA polygon assigned to that postcode
   2. Multi-postcode OA:
      a. Assign INSPIRE parcels to postcodes via UPRN point-in-polygon majority vote
-     b. Union INSPIRE parcels per postcode, clip to OA → "claimed" area
-     c. Distribute remaining (unclaimed) OA area via Voronoi of UPRN points
-     d. Final polygon = claimed + Voronoi share
+     b. Assign INSPIRE parcels with no contained UPRN to the nearest UPRN postcode
+     c. Union parcel claims per postcode, clip to OA → "claimed" area
+     d. Distribute remaining non-parcel OA area via Voronoi of UPRN points
+     e. Final polygon = parcel claims + Voronoi share
 
 Memory-efficient design (<12GB total):
   - INSPIRE polygons stored as raw coordinate bytes in parquet; Shapely objects built