Geometry QC Checks

Following is a list of common Geometry QC Quality Control checks that may be processed. Additional or variations of these checks, including the check name, may apply to your site based on your QC check configuration.

Identifies invalid and complex geometry. See Complex Geometry.

Identifies records in a feature class with no associated geometry. An empty geometry record is a feature within a feature class that contains an attribute Nonspatial information about a geographic feature in a GIS, usually stored in a table and linked to the feature by a unique identifier. For example, attributes of a river might include its name, length, and sediment load at a gauging station. record, but no geometry. See Empty Geometry.

Identifies where a line feature crosses a polygon feature without being split into two lines at the intersection point. See Features Not Split at Polygon

Identifies when a point or line feature is located outside of a designated polygon layer. The feature is not covered by the polygon layer. See Features Outside of Polygon.

Identifies features that contain more than one geometry per record. For example, if clicking Hawaii in an attribute table selects several islands, these islands are multipart geometries. See Multipart Geometry.

Identifies where gaps exist in a polygon layer when compared to another authoritative polygon layer. See Polygon - Multi-Layer Gap.

Identifies overhangs where one polygon layer extends beyond the outer limits of another polygon layer. See Polygon - Multi-Layer Overhang.

Identifies overlaps where a polygon intersects with other polygons within that layer. See Polygon - Single Layer Overlap.

Identifies gaps where a polygon is not properly aligned to other polygons within that layer. See Polygon - Single Layer Gap.

Identifies line segments that are not snapped to another nearby line segment. See Segment Snapped to Adjacent Segment - Same Layer.