Package org.geotools.referencing.operation

Class DefaultOperation

Object

Formattable

AbstractIdentifiedObject

AbstractCoordinateOperation

DefaultSingleOperation

DefaultOperation

All Implemented Interfaces:

Serializable, IdentifiedObject, CoordinateOperation, Operation, SingleOperation

Direct Known Subclasses:

DefaultConversion, DefaultTransformation

public class DefaultOperation
extends DefaultSingleOperation
implements Operation

A parameterized mathematical operation on coordinates that transforms or converts coordinates to another coordinate reference system. This coordinate operation thus uses an operation method, usually with associated parameter values.

In the Geotools implementation, the parameter values are inferred from the transform. Other implementations may have to overrides the getParameterValues() method.

Since:

2.1

Author:

Martin Desruisseaux (IRD)

See Also:

• DefaultOperationMethod
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected final OperationMethod	method	The operation method.

Fields inherited from class AbstractCoordinateOperation

domainOfValidity, EMPTY_ACCURACY_ARRAY, sourceCRS, targetCRS, transform

Fields inherited from class AbstractIdentifiedObject

EMPTY_ALIAS_ARRAY, EMPTY_IDENTIFIER_ARRAY, IDENTIFIER_COMPARATOR, NAME_COMPARATOR, REMARKS_COMPARATOR

Fields inherited from class Formattable

SINGLE_LINE

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

Constructor Summary

Constructors

Constructor	Description
DefaultOperation(Map<String,?> properties, CoordinateReferenceSystem sourceCRS, CoordinateReferenceSystem targetCRS, MathTransform transform, OperationMethod method)	Constructs an operation from a set of properties.

Method Summary

Modifier and Type	Method	Description
static CoordinateOperation	create(Map<String,?> properties, CoordinateReferenceSystem sourceCRS, CoordinateReferenceSystem targetCRS, MathTransform transform, OperationMethod method, Class<? extends CoordinateOperation> type)	Returns a coordinate operation of the specified class.
boolean	equals(AbstractIdentifiedObject object, boolean compareMetadata)	Compare this operation method with the specified object for equality.
protected String	formatWKT(Formatter formatter)	Format this operation as a pseudo-WKT format.
OperationMethod	getMethod()	Returns the operation method.
ParameterValueGroup	getParameterValues()	Returns the parameter values.
int	hashCode()	Returns a hash code value for this operation method.

Methods inherited from class AbstractCoordinateOperation

getAccuracy, getAccuracy, getCoordinateOperationAccuracy, getDomainOfValidity, getMathTransform, getOperationVersion, getScope, getSourceCRS, getTargetCRS, getType

Methods inherited from class AbstractIdentifiedObject

asSet, ensureAngularUnit, ensureLinearUnit, ensureNonNull, ensureNonNull, ensureTimeUnit, equals, equals, equals, equals, getAlias, getIdentifier, getIdentifier, getIdentifiers, getName, getName, getName, getProperties, getProperties, getRemarks, nameMatches, nameMatches, nameMatches

Methods inherited from class Formattable

cleanupThreadLocals, toString, toWKT, toWKT, toWKT, toWKT

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface CoordinateOperation

getCoordinateOperationAccuracy, getDomainOfValidity, getMathTransform, getOperationVersion, getScope, getSourceCRS, getTargetCRS

Methods inherited from interface IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Field Details

method

protected final OperationMethod method

The operation method.

Constructor Details

DefaultOperation

public DefaultOperation(Map<String,?> properties,
 CoordinateReferenceSystem sourceCRS,
 CoordinateReferenceSystem targetCRS,
 MathTransform transform,
 OperationMethod method)

Constructs an operation from a set of properties. The properties given in argument follow the same rules than for the AbstractCoordinateOperation constructor.

Parameters:

properties - Set of properties. Should contains at least "name".

sourceCRS - The source CRS.

targetCRS - The target CRS.

transform - Transform from positions in the source CRS to positions in the target CRS.

method - The operation method.

Method Details

create

public static CoordinateOperation create(Map<String,?> properties,
 CoordinateReferenceSystem sourceCRS,
 CoordinateReferenceSystem targetCRS,
 MathTransform transform,
 OperationMethod method,
 Class<? extends CoordinateOperation> type)

Returns a coordinate operation of the specified class. This method may constructs instance of Conversion or Transformation among others.

Parameters:

properties - Set of properties. Should contains at least "name".

sourceCRS - The source CRS.

targetCRS - The target CRS.

transform - Transform from positions in the source CRS to positions in the target CRS.

method - The operation method, or null.

type - The minimal type as Conversion.class, Projection.class, etc. This method may create an instance of a subclass of type.

Returns:

A new coordinate operation of the given type.

See Also:

• DefaultConversion.create(org.geotools.api.referencing.operation.Conversion, org.geotools.api.referencing.crs.CoordinateReferenceSystem, org.geotools.api.referencing.crs.CoordinateReferenceSystem, org.geotools.api.referencing.operation.MathTransform, java.lang.Class<? extends org.geotools.api.referencing.operation.Conversion>)

getMethod

public OperationMethod getMethod()

Returns the operation method.

Specified by:

getMethod in interface Operation

Returns:

The operation method.

getParameterValues

public ParameterValueGroup getParameterValues()
                                       throws UnsupportedOperationException

Returns the parameter values. The default implementation infer the parameter values from the transform, if possible.

Specified by:

getParameterValues in interface Operation

Returns:

The parameter values.

Throws:

UnsupportedOperationException - if the parameters values can't be determined for current math transform implementation.

See Also:

• DefaultMathTransformFactory.createParameterizedTransform(org.geotools.api.parameter.ParameterValueGroup)
• AbstractMathTransform.getParameterValues()

equals

public boolean equals(AbstractIdentifiedObject object,
 boolean compareMetadata)

Compare this operation method with the specified object for equality. If compareMetadata is true, then all available properties are compared including formula.

Overrides:

equals in class AbstractCoordinateOperation

Parameters:

object - The object to compare to this.

compareMetadata - true for performing a strict comparaison, or false for comparing only properties relevant to transformations.

Returns:

true if both objects are equal.

hashCode

public int hashCode()

Returns a hash code value for this operation method.

Overrides:

hashCode in class AbstractCoordinateOperation

Returns:

The hash code value. This value doesn't need to be the same in past or future versions of this class.

formatWKT

protected String formatWKT(Formatter formatter)

Format this operation as a pseudo-WKT format. No WKT format were defined for coordinate operation at the time this method was written. This method may change in any future version until a standard format is found.

Overrides:

formatWKT in class AbstractCoordinateOperation

Parameters:

formatter - The formatter to use.

Returns:

The WKT element name.

See Also:

• Formattable.toWKT()
• Formattable.toString()