Transformation (Geotools modules 31-SNAPSHOT API)

All Superinterfaces:

CoordinateOperation, IdentifiedObject, Operation, SingleOperation

All Known Implementing Classes:

DefaultTransformation
```
public interface Transformation
extends Operation
```
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:

GeoAPI 1.0

Author:

Martin Desruisseaux (IRD)

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

All Methods Instance Methods Abstract Methods
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 Operation
getMethod, getParameterValues

- Method Detail
  - getSourceCRS
```
CoordinateReferenceSystem getSourceCRS()
```
    Returns the source CRS.
    
    Specified by:
    
    getSourceCRS in interface CoordinateOperation
    
    Returns:
    
    The source CRS (never null).
    
    See Also:
    
    Conversion.getSourceCRS(), getSourceCRS()
  - getTargetCRS
```
CoordinateReferenceSystem getTargetCRS()
```
    Returns the target CRS.
    
    Specified by:
    
    getTargetCRS in interface CoordinateOperation
    
    Returns:
    
    The target CRS (never null).
    
    See Also:
    
    Conversion.getTargetCRS(), getTargetCRS()
  - getOperationVersion
```
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.