org.geotools.referencing.factory

Class ReferencingFactoryContainer

Object

AbstractFactory

ReferencingFactory

ReferencingFactoryContainer

All Implemented Interfaces:

Factory, RegistrableFactory

public class ReferencingFactoryContainer
extends ReferencingFactory

A set of utilities methods working on factories. Many of those methods requires more than one factory. Consequently, they can't be a method in a single factory. Furthermore, since they are helper methods and somewhat implementation-dependent, they are not part of GeoAPI.

Since:

2.4

Author:

Martin Desruisseaux (IRD)

Field Summary

Fields inherited from class ReferencingFactory

LOGGER

Fields inherited from class AbstractFactory

hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority

Constructor Summary

Constructors

Constructor and Description
ReferencingFactoryContainer(Hints userHints) Creates an instance from the specified hints.

Method Summary

Modifier and Type	Method and Description
CRSFactory	getCRSFactory() Returns the coordinate reference system factory.
CSFactory	getCSFactory() Returns the coordinate system factory.
DatumFactory	getDatumFactory() Returns the datum factory.
Map<RenderingHints.Key,?>	getImplementationHints() Returns all factories in this group.
MathTransformFactory	getMathTransformFactory() Returns the math transform factory.
static ReferencingFactoryContainer	instance(Hints hints) Creates an instance from the specified hints.
CoordinateReferenceSystem	separate(CoordinateReferenceSystem crs, int[] dimensions) Returns a new coordinate reference system with only the specified dimension.
CoordinateReferenceSystem	toGeodetic3D(CompoundCRS crs) Converts a 2D + 1D compound CRS into a 3D CRS, if possible.

Methods inherited from class ReferencingFactory

ensureNonNull, getVendor

Methods inherited from class AbstractFactory

addImplementationHints, equals, getPriority, hashCode, onDeregistration, onRegistration, toString

Methods inherited from class Object

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

Constructor Detail

ReferencingFactoryContainer

public ReferencingFactoryContainer(Hints userHints)

Creates an instance from the specified hints. This constructor recognizes the CRS, CS, DATUM and MATH_TRANSFORM FACTORY hints.

This constructor is public mainly for FactoryCreator usage. Consider invoking createInstance(userHints) instead.

Parameters:

userHints - The hints, or null if none.

Method Detail

instance

public static ReferencingFactoryContainer instance(Hints hints)

Creates an instance from the specified hints. This method recognizes the CRS, CS, DATUM and MATH_TRANSFORM FACTORY hints.

Parameters:

hints - The hints, or null if none.

Returns:

A factory group created from the specified set of hints.

getImplementationHints

public Map<RenderingHints.Key,?> getImplementationHints()

Returns all factories in this group. The returned map contains values for the CRS, CS, DATUM and MATH_TRANSFORM FACTORY hints.

Specified by:

getImplementationHints in interface Factory

Overrides:

getImplementationHints in class AbstractFactory

Returns:

The map of hints, or an empty map if none.

getDatumFactory

public DatumFactory getDatumFactory()

Returns the datum factory.

Returns:

The Datum factory.

getCSFactory

public CSFactory getCSFactory()

Returns the coordinate system factory.

Returns:

The Coordinate System factory.

getCRSFactory

public CRSFactory getCRSFactory()

Returns the coordinate reference system factory.

Returns:

The Coordinate Reference System factory.

getMathTransformFactory

public MathTransformFactory getMathTransformFactory()

Returns the math transform factory.

Returns:

The Math Transform factory.

toGeodetic3D

public CoordinateReferenceSystem toGeodetic3D(CompoundCRS crs)
                                       throws FactoryException

Converts a 2D + 1D compound CRS into a 3D CRS, if possible. More specifically, if the specified compound CRS is made of a geographic (or projected) and a vertical CRS, and if the vertical CRS datum type is height above the ellipsoid, then this method converts the compound CRS in a single 3D CRS. Otherwise, the crs argument is returned unchanged.

Parameters:

crs - The compound CRS to converts in a 3D geographic or projected CRS.

Returns:

The 3D geographic or projected CRS, or crs if the change can't be applied.

Throws:

FactoryException - if the object creation failed.

separate

public CoordinateReferenceSystem separate(CoordinateReferenceSystem crs,
                                          int[] dimensions)
                                   throws FactoryException

Returns a new coordinate reference system with only the specified dimension. This method is used for example in order to get a component of a compound CRS.

Parameters:

crs - The original (usually compound) CRS.

dimensions - The dimensions to keep.

Returns:

The CRS with only the specified dimensions.

Throws:

FactoryException - if the given dimensions can not be isolated in the given CRS.