Package org.geotools.api.referencing.datum

Interface DatumFactory

All Superinterfaces:

Factory, ObjectFactory

All Known Implementing Classes:

DatumAliases, ReferencingObjectFactory

public interface DatumFactory
extends ObjectFactory

Builds up complex datums from simpler objects or values. DatumFactory allows applications to make datums that cannot be created by a DatumAuthorityFactory. This factory is very flexible, whereas the authority factory is easier to use. So DatumAuthorityFactory can be used to make "standard" datums, and DatumFactory can be used to make "special" datums.

Since:

GeoAPI 1.0

Author:

Martin Desruisseaux (IRD)

See Also:

• CSFactory
• CRSFactory

Method Summary

Modifier and Type	Method	Description
Ellipsoid	createEllipsoid(Map<String,?> properties, double semiMajorAxis, double semiMinorAxis, Unit<Length> unit)	Creates an ellipsoid from radius values.
EngineeringDatum	createEngineeringDatum(Map<String,?> properties)	Creates an engineering datum.
Ellipsoid	createFlattenedSphere(Map<String,?> properties, double semiMajorAxis, double inverseFlattening, Unit<Length> unit)	Creates an ellipsoid from an major radius, and inverse flattening.
GeodeticDatum	createGeodeticDatum(Map<String,?> properties, Ellipsoid ellipsoid, PrimeMeridian primeMeridian)	Creates geodetic datum from ellipsoid and (optionaly) Bursa-Wolf parameters.
ImageDatum	createImageDatum(Map<String,?> properties, PixelInCell pixelInCell)	Creates an image datum.
PrimeMeridian	createPrimeMeridian(Map<String,?> properties, double longitude, Unit<Angle> unit)	Creates a prime meridian, relative to Greenwich.
TemporalDatum	createTemporalDatum(Map<String,?> properties, Date origin)	Creates a temporal datum from an enumerated type value.
VerticalDatum	createVerticalDatum(Map<String,?> properties, VerticalDatumType type)	Creates a vertical datum from an enumerated type value.

Methods inherited from interface Factory

getVendor

Method Details

createEngineeringDatum

EngineeringDatum createEngineeringDatum(Map<String,?> properties)
                                 throws FactoryException

Creates an engineering datum.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

Returns:

The datum for the given properties.

Throws:

FactoryException - if the object creation failed.

createGeodeticDatum

GeodeticDatum createGeodeticDatum(Map<String,?> properties,
 Ellipsoid ellipsoid,
 PrimeMeridian primeMeridian)
                           throws FactoryException

Creates geodetic datum from ellipsoid and (optionaly) Bursa-Wolf parameters.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

ellipsoid - Ellipsoid to use in new geodetic datum.

primeMeridian - Prime meridian to use in new geodetic datum.

Returns:

The datum for the given properties.

Throws:

FactoryException - if the object creation failed.

createImageDatum

ImageDatum createImageDatum(Map<String,?> properties,
 PixelInCell pixelInCell)
                     throws FactoryException

Creates an image datum.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

pixelInCell - Specification of the way the image grid is associated with the image data attributes.

Returns:

The datum for the given properties.

Throws:

FactoryException - if the object creation failed.

createTemporalDatum

TemporalDatum createTemporalDatum(Map<String,?> properties,
 Date origin)
                           throws FactoryException

Creates a temporal datum from an enumerated type value.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

origin - The date and time origin of this temporal datum.

Returns:

The datum for the given properties.

Throws:

FactoryException - if the object creation failed.

createVerticalDatum

VerticalDatum createVerticalDatum(Map<String,?> properties,
 VerticalDatumType type)
                           throws FactoryException

Creates a vertical datum from an enumerated type value.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

type - The type of this vertical datum (often "geoidal").

Returns:

The datum for the given properties.

Throws:

FactoryException - if the object creation failed.

createEllipsoid

Ellipsoid createEllipsoid(Map<String,?> properties,
 double semiMajorAxis,
 double semiMinorAxis,
 Unit<Length> unit)
                   throws FactoryException

Creates an ellipsoid from radius values.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

semiMajorAxis - Equatorial radius in supplied linear units.

semiMinorAxis - Polar radius in supplied linear units.

unit - Linear units of ellipsoid axes.

Returns:

The ellipsoid for the given properties.

Throws:

FactoryException - if the object creation failed.

createFlattenedSphere

Ellipsoid createFlattenedSphere(Map<String,?> properties,
 double semiMajorAxis,
 double inverseFlattening,
 Unit<Length> unit)
                         throws FactoryException

Creates an ellipsoid from an major radius, and inverse flattening.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

semiMajorAxis - Equatorial radius in supplied linear units.

inverseFlattening - Eccentricity of ellipsoid.

unit - Linear units of major axis.

Returns:

The ellipsoid for the given properties.

Throws:

FactoryException - if the object creation failed.

createPrimeMeridian

PrimeMeridian createPrimeMeridian(Map<String,?> properties,
 double longitude,
 Unit<Angle> unit)
                           throws FactoryException

Creates a prime meridian, relative to Greenwich.

Parameters:

properties - Name and other properties to give to the new object. Available properties are listed there.

longitude - Longitude of prime meridian in supplied angular units East of Greenwich.

unit - Angular units of longitude.

Returns:

The prime meridian for the given properties.

Throws:

FactoryException - if the object creation failed.