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Incomplete geometry
Data qualityA polygon with fewer than 4 coordinates (or a ring truncated mid-transfer) is not a valid closed shape and will fail or misbehave in a filler.
Detection
Ring vertex count < 4 after closing, or coordinate array truncated relative to declared length/checksum.
Mitigation
- Validate vertex count and ring closure on ingest
- Checksum or row-count validate file transfers to catch truncation
Affected conversions
- PolygonH3 (center-contained)
- PolygonH3 (fully-contained)
- PolygonH3 (intersects)