Module org.opengis.geoapi
Package org.opengis.referencing.datum

Interface EngineeringDatum

All Superinterfaces:
Datum, IdentifiedObject
@UML(identifier="EngineeringDatum", specification=ISO_19111) public interface EngineeringDatum extends Datum
Identification of the origin of an engineering (or local) coordinate reference system. An engineering datum is used in a region around that origin. This origin can be fixed with respect to the planet (such as a defined point at a construction site), a defined point on a moving object (such as on a road vehicle, vessel, aircraft or spacecraft), or a point used to describe spatial location internally on an image.

When used for a region on a planet, engineering CRSs use a flat-Earth approximation: corrections for planet-curvature are not applied. Typical applications are for civil engineering construction and building information management. Note that these applications are not restricted to using engineering CRSs: they often utilize projected and sometimes geodetic CRSs.

When used for an image internal coordinates, the CRS is not georeferenced. The image can be georeferenced by relating the engineering CRS to a geodetic or projected CRS through a coordinate transformation.

Since:
1.0
See Also: