1.4 KiB
1.4 KiB
Ground Zero Neighbor Edge Verification
The Ground Zero tile and its eight immediate neighbor placeholders were checked against the tile registry before any multi-tile stitching work.
Inputs
- Registry:
Data/Tiles/ground_zero_tiles.json - Verification script:
Scripts/verify_ground_zero_neighbor_edges.py - Output:
Data/Terrain/Analysis/gz_us_ca_pacifica_utm10n_e544_n4160/gz_us_ca_pacifica_utm10n_e544_n4160_neighbor_edge_verification.json
Result
The registry coordinate pass succeeded.
- Ground Zero tile:
gz_us_ca_pacifica_utm10n_e544_n4160 - Ground Zero bounds:
544000,4160000 -> 545000,4161000in EPSG:26910 / UTM zone 10N. - Verified tile count:
9 - Found neighbor count:
8 - All tiles use
1000 m x 1000 mbounds. - All tile IDs match their minimum UTM kilometer coordinates.
- North, south, east, and west neighbors share exact full 1 km edges with the Ground Zero tile.
- Northeast, southeast, southwest, and northwest neighbors touch Ground Zero at corners only.
Stitching Decision
The registry is ready for coordinate-based neighbor stitching around Ground Zero. This pass verifies tile bounds and adjacency only; it does not verify elevation seam continuity because neighbor DEM extraction has not been run yet.
The next terrain stitching pass should extract or generate the relevant neighbor DEMs, compare edge sample elevations, and then choose the seam blending rule.