Package org.geotools.api.referencing.crs
Interface GeographicCRS
- All Superinterfaces:
CoordinateReferenceSystem
,GeodeticCRS
,IdentifiedObject
,ReferenceSystem
,SingleCRS
- All Known Implementing Classes:
DefaultGeographicCRS
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:
- GeoAPI 1.0
- Author:
- Martin Desruisseaux (IRD)
-
Field Summary
Fields inherited from interface IdentifiedObject
ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY
Fields inherited from interface ReferenceSystem
DOMAIN_OF_VALIDITY_KEY, SCOPE_KEY
-
Method Summary
Modifier and TypeMethodDescriptionReturns the coordinate system, which must be ellipsoidal.Methods inherited from interface GeodeticCRS
getDatum
Methods inherited from interface IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT
Methods inherited from interface ReferenceSystem
getDomainOfValidity, getScope
-
Method Details
-
getCoordinateSystem
EllipsoidalCS getCoordinateSystem()Returns the coordinate system, which must be ellipsoidal.- Specified by:
getCoordinateSystem
in interfaceCoordinateReferenceSystem
- Specified by:
getCoordinateSystem
in interfaceSingleCRS
- Returns:
- The coordinate system.
-