VerticalCRS (Apache SIS 1.6 API)
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org.opengis.geoapi
org.opengis.referencing.crs
VerticalCRS
Contents 
Description
Field Summary
Method Summary
Method Details
getCoordinateSystem()
getDatum()
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Interface VerticalCRS
All Superinterfaces:
Coordinate­Reference­System, Identified­Object, Reference­System, Single­CRS
All Known Implementing Classes:
Default­Vertical­CRS
@UML(identifier="SC_VerticalCRS",
specification=ISO_19111)
public interface VerticalCRS
extends SingleCRS
A 1D coordinate reference system used for recording heights or depths. Vertical CRSs make use
of the direction of gravity to define the concept of height or depth, but the relationship with
gravity may not be straightforward.
By implication, ellipsoidal heights (h) cannot be captured in a vertical coordinate
reference system. Ellipsoidal heights cannot exist independently, but only as inseparable part
of a 3D coordinate tuple defined in a geographic 3D coordinate reference system. However GeoAPI
does not enforce this rule. Some applications may relax this rule and accept ellipsoidal heights
in the following context:
As a transient state while parsing Well Known Text,
or any other format based on legacy specifications where ellipsoidal heights were allowed
as an independent axis.
As short-lived objects to be passed or returned by methods enforcing type safety, for
example Vertical­Extent​.get­Vertical­CRS().
Other cases at implementor convenience. However implementors are encouraged to
assemble the full 3D CRS as soon as they can.
Used with CS type(s)
Vertical
Since:
1.0
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
All MethodsInstance MethodsAbstract Methods
Modifier and Type
Method
Description
Vertical­CS
get­Coordinate­System()
Returns the coordinate system, which must be vertical.
Vertical­Datum
get­Datum()
Returns the datum, which must be vertical.
Methods inherited from interface IdentifiedObject
get­Alias, get­Identifiers, get­Name, get­Remarks, to­WKT
Methods inherited from interface ReferenceSystem
get­Domain­Of­Validity, get­Scope
Method Details
getCoordinateSystem
@UML(identifier="coordinateSystem",
obligation=MANDATORY,
specification=ISO_19111)
VerticalCS getCoordinateSystem()
Returns the coordinate system, which must be vertical.
Specified by:
get­Coordinate­System in interface Coordinate­Reference­System
Specified by:
get­Coordinate­System in interface Single­CRS
Returns:
The coordinate system.
getDatum
@UML(identifier="datum",
obligation=MANDATORY,
specification=ISO_19111)
VerticalDatum getDatum()
Returns the datum, which must be vertical.
Specified by:
get­Datum in interface Single­CRS
Returns:
The datum.