Interface Transformation

All Superinterfaces:

Coordinate­Operation, Identified­Object, Single­Operation

All Known Implementing Classes:

Default­Transformation

@UML(identifier="CC_Transformation",
     specification=ISO_19111)
public interface Transformation
extends SingleOperation

An operation on coordinates that usually includes a change of Datum. The parameters of a coordinate transformation are empirically derived from data containing the coordinates of a series of points in both coordinate reference systems. This computational process is usually "over-determined", allowing derivation of error (or accuracy) estimates for the transformation. Also, the stochastic nature of the parameters may result in multiple (different) versions of the same coordinate transformation.

Since:

1.0

See Also:

• Conversion

Field Summary

Fields inherited from interface CoordinateOperation

COORDINATE_OPERATION_ACCURACY_KEY, DOMAIN_OF_VALIDITY_KEY, OPERATION_VERSION_KEY, SCOPE_KEY

Fields inherited from interface IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Method Summary

Modifier and Type	Method	Description
String	get­Operation­Version()	Version of the coordinate transformation (i.e., instantiation due to the stochastic nature of the parameters).
Coordinate­Reference­System	get­Source­CRS()	Returns the source CRS.
Coordinate­Reference­System	get­Target­CRS()	Returns the target CRS.

Methods inherited from interface CoordinateOperation

get­Coordinate­Operation­Accuracy, get­Domain­Of­Validity, get­Math­Transform, get­Scope

Methods inherited from interface IdentifiedObject

get­Alias, get­Identifiers, get­Name, get­Remarks, to­WKT

Methods inherited from interface SingleOperation

get­Method, get­Parameter­Values

Method Details

getSourceCRS

@UML(identifier="sourceCRS",
     obligation=MANDATORY,
     specification=ISO_19111)
CoordinateReferenceSystem getSourceCRS()

Returns the source CRS.

Specified by:

get­Source­CRS in interface Coordinate­Operation

Returns:

The source CRS (never null).

See Also:

• Conversion.get­Source­CRS()
• get­Source­CRS()

getTargetCRS

@UML(identifier="targetCRS",
     obligation=MANDATORY,
     specification=ISO_19111)
CoordinateReferenceSystem getTargetCRS()

Returns the target CRS.

Specified by:

get­Target­CRS in interface Coordinate­Operation

Returns:

The target CRS (never null).

See Also:

• Conversion.get­Target­CRS()
• get­Target­CRS()

getOperationVersion

@UML(identifier="operationVersion",
     obligation=MANDATORY,
     specification=ISO_19111)
String getOperationVersion()

Version of the coordinate transformation (i.e., instantiation due to the stochastic nature of the parameters). This attribute is mandatory in a Transformation.

Specified by:

get­Operation­Version in interface Coordinate­Operation

Returns:

The coordinate operation version.