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Back to the catalogueData qualityCase 07 of 14
Incomplete geometry
A 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.
Class
Case to account for
Affects
3 conversions
01
Detection
Ring vertex count < 4 after closing, or coordinate array truncated relative to declared length/checksum.
02
Mitigation
01
Validate vertex count and ring closure on ingest
02
Checksum or row-count validate file transfers to catch truncation
03
Affected conversions
PolygonH3 (center-contained)
OPENPolygonH3 (fully-contained)
OPENPolygonH3 (intersects)
OPENMore in Data quality
Accuracy-radius attritionAxis-order reversal (lat/lng swap)Coastal / mixed pixelsConfidence-convention mismatchDuplicated region IDsGeocoding uncertaintyMissing CRS declarationMissing polygonsRaster no-data valuesRaster/cell resolution mismatchRounded / truncated coordinatesWrong CRS assumedZero-island coordinates