Package org.opengis.referencing.crs
Interface GeographicCRS
- All Superinterfaces:
CoordinateReferenceSystem
,GeodeticCRS
,IdentifiedObject
,ReferenceSystem
,SingleCRS
@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.
Used with CS type(s) |
---|
Ellipsoidal
|
- Since:
- 1.0
- Version:
- 3.0
-
Field Summary
Fields inherited from interface org.opengis.referencing.IdentifiedObject
ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY
Fields inherited from interface org.opengis.referencing.ReferenceSystem
DOMAIN_OF_VALIDITY_KEY, SCOPE_KEY
-
Method Summary
Modifier and TypeMethodDescriptionReturns the coordinate system, which must be ellipsoidal.Methods inherited from interface org.opengis.referencing.crs.GeodeticCRS
getDatum
Methods inherited from interface org.opengis.referencing.IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT
Methods inherited from interface org.opengis.referencing.ReferenceSystem
getDomainOfValidity, getScope
-
Method Details
-
getCoordinateSystem
@UML(identifier="coordinateSystem", obligation=MANDATORY, specification=ISO_19111) EllipsoidalCS getCoordinateSystem()Returns the coordinate system, which must be ellipsoidal.- Specified by:
getCoordinateSystem
in interfaceCoordinateReferenceSystem
- Specified by:
getCoordinateSystem
in interfaceSingleCRS
- Returns:
- The coordinate system.
-