org.opengis.referencing.crs
Interface GeographicCRS
- All Superinterfaces:
- CoordinateReferenceSystem, GeodeticCRS, IdentifiedObject, ReferenceSystem, SingleCRS
- All Known Implementing Classes:
- DefaultGeographicCRS
@UML(identifier="SC_GeographicCRS",
specification=ISO_19111)
public interface GeographicCRS
- extends GeodeticCRS
A coordinate reference system based on an ellipsoidal approximation of the geoid; this provides
an accurate representation of the geometry of geographic features for a large portion of the
earth's surface.
A Geographic CRS is not suitable for mapmaking on a planar surface, because it describes geometry
on a curved surface. It is impossible to represent such geometry in a Euclidean plane without
introducing distortions. The need to control these distortions has given rise to the development
of the science of map projections.
- Since:
- GeoAPI 1.0
- Author:
- Martin Desruisseaux (IRD)
getCoordinateSystem
@UML(identifier="usesCS",
obligation=MANDATORY,
specification=ISO_19111)
EllipsoidalCS getCoordinateSystem()
- Returns the coordinate system, which must be ellipsoidal.
- Specified by:
getCoordinateSystem
in interface CoordinateReferenceSystem
- Specified by:
getCoordinateSystem
in interface SingleCRS
- Returns:
- The coordinate system.
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