definite indefinite positionApproximate virtual
This enumeration is used by GeometricObject.
definite: The feature complies with positional accuracy (assuming that the spatial entity to which this refers has included an attribute from the domain Quality in its definition.).
indefinite: The feature was partially obscured on the input source material and so compliance with positional acuracy (as defined under quality of the spatial entity in question) is not ensured.
positionApproximate: The feature was not evident on the input source material; its position was estimated from alternate source material.
virtual: The feature does not exist on the ground; this feature is required to fulfill polygon closure requirements for polygonal features that intersect a data coverage boundary.