org.opengis.referencing.operation

Interface Conversion

All Superinterfaces:

CoordinateOperation, IdentifiedObject, Operation, SingleOperation

All Known Subinterfaces:

ConicProjection, CylindricalProjection, PlanarProjection, Projection

All Known Implementing Classes:

DefaultConicProjection, DefaultConversion, DefaultCylindricalProjection, DefaultPlanarProjection, DefaultProjection, DefiningConversion

@UML(identifier="CC_Conversion",
     specification=ISO_19111)
public interface Conversion
extends Operation

An operation on coordinates that does not include any change of Datum. The best-known example of a coordinate conversion is a map projection. The parameters describing coordinate conversions are defined rather than empirically derived.

Note that some conversions have no parameters.

Since:

GeoAPI 1.0

Author:

Martin Desruisseaux (IRD)

See Also:

Transformation

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 and Description
String	getOperationVersion() This attribute is declared in CoordinateOperation but is not used in a conversion.
CoordinateReferenceSystem	getSourceCRS() Returns the source CRS.
CoordinateReferenceSystem	getTargetCRS() Returns the target CRS.

Methods inherited from interface Operation

getMethod, getParameterValues

Methods inherited from interface CoordinateOperation

getCoordinateOperationAccuracy, getDomainOfValidity, getMathTransform, getScope

Methods inherited from interface IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Method Detail

getSourceCRS

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

Returns the source CRS. Conversions may have a source CRS that is not specified here, but through GeneralDerivedCRS.getBaseCRS() instead.

Specified by:

getSourceCRS in interface CoordinateOperation

Returns:

The source CRS, or null if not available.

See Also:

getSourceCRS(), Transformation.getSourceCRS()

getTargetCRS

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

Returns the target CRS. Conversions may have a target CRS that is not specified here, but through GeneralDerivedCRS instead.

Specified by:

getTargetCRS in interface CoordinateOperation

Returns:

The target CRS, or null if not available.

See Also:

getTargetCRS(), Transformation.getTargetCRS()

getOperationVersion

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

This attribute is declared in CoordinateOperation but is not used in a conversion.

Specified by:

getOperationVersion in interface CoordinateOperation

Returns:

Always null.