Conversion (Geotools modules 31-SNAPSHOT API)

All Superinterfaces:

CoordinateOperation, IdentifiedObject, Operation, SingleOperation

All Known Subinterfaces:

ConicProjection, CylindricalProjection, PlanarProjection, Projection

All Known Implementing Classes:

DefaultConicProjection, DefaultConversion, DefaultCylindricalProjection, DefaultPlanarProjection, DefaultProjection, DefiningConversion
```
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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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 CoordinateOperation
getCoordinateOperationAccuracy, getDomainOfValidity, getMathTransform, getScope

Methods inherited from interface IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT

Methods inherited from interface Operation
getMethod, getParameterValues

- Method Detail
  - getSourceCRS
```
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
```
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
```
String getOperationVersion()
```
    This attribute is declared in CoordinateOperation but is not used in a conversion.
    
    Specified by:
    
    getOperationVersion in interface CoordinateOperation
    
    Returns:
    
    Always null.