feat: provision regional Kempen buildings

2026-07-14 19:01:49 +02:00
parent 8586921ae6
commit 4b0c016df9
14 changed files with 1323 additions and 29 deletions
@@ -106,6 +106,24 @@ boundaries.
  no interactive request or application startup may download the entire
  region or silently substitute missing data.

+### Regional building partition policy
+
+The current GRB building snapshot is fetched in one resumable partition per
+registered municipality. Partitions are source/provenance artifacts, not 28
+independent user-facing layers. A building intersecting more than one member
+boundary is owned by the member with the largest intersection area; the lower
+NIS code resolves exact ties. The retained geometry is clipped to the regional
+union, preserving complete in-scope coverage while guaranteeing one source ID
+per regional dataset.
+
+After all partitions pass validation, one combined immutable GeoJSON artifact
+is copied into managed storage and indexed in bounded batches through the
+normal DatasetService/VectorFeatureService ownership boundary. The resulting
+reference dataset uses `source_name=grb`, `reference_layer_name=buildings`,
+`coverage_scope=kempen-transport-region` and an exact `feature_count`
+selection aggregation. Existing viewport and bbox selection APIs remain the
+only interactive delivery path.
+
 ## User-uploaded raster strategy
 V1 must support controlled local datasets because public raster access and model compatibility can be difficult.