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