Conversion

All Superinterfaces:

CoordinateOperation, IdentifiedObject, SingleOperation

All Known Subinterfaces:

ConicProjection, CylindricalProjection, PlanarProjection, Projection
```
@UML(identifier="CC_Conversion",
     specification=ISO_19111)
public interface Conversion
extends SingleOperation
```
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:

1.0

Version:

3.0

See Also:

Transformation

Field Summary
- Fields inherited from interface org.opengis.referencing.operation.CoordinateOperation
  COORDINATE_OPERATION_ACCURACY_KEY, DOMAIN_OF_VALIDITY_KEY, OPERATION_VERSION_KEY, SCOPE_KEY
- Fields inherited from interface org.opengis.referencing.IdentifiedObject
  ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.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 org.opengis.referencing.operation.CoordinateOperation
getCoordinateOperationAccuracy, getDomainOfValidity, getMathTransform, getScope

Methods inherited from interface org.opengis.referencing.IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT

Methods inherited from interface org.opengis.referencing.operation.SingleOperation
getMethod, getParameterValues

- 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=FORBIDDEN,
     specification=ISO_19111)
java.lang.String getOperationVersion()
```
    This attribute is declared in CoordinateOperation but is not used in a conversion.
    
    Specified by:
    
    getOperationVersion in interface CoordinateOperation
    
    Returns:
    
    Always null.