org.geotoolkit.referencing.operation.provider
Class LambertAzimuthalEqualArea

Object
  FormattableObject
      AbstractIdentifiedObject
          DefaultOperationMethod
              MathTransformProvider
                  MapProjection
                      LambertAzimuthalEqualArea

All Implemented Interfaces:

Serializable, Formattable, Deprecable, LenientComparable, IdentifiedObject, OperationMethod

@Immutable
public class LambertAzimuthalEqualArea
extends MapProjection

The provider for "Lambert Azimuthal Equal Area" projection (EPSG:9820, EPSG:1027, EPSG:9821).

Note: EPSG defines two codes for this projection, 1027 being the spherical case and 9820 the ellipsoidal case. However the formulas are the same in both cases. Consequently they are implemented in Geotk by the same class.

Note: EPSG:9820 and 1027 are the current codes, while EPSG:9821 is a deprecated code. The new and deprecated definitions differ only by their names. In the Geotk implementation, both current and legacy definitions are known, but the legacy names are marked as deprecated.

The math transform implementations instantiated by this provider may be any of the following classes:

• LambertAzimuthalEqualArea

The following table summarizes the parameters recognized by this provider. For a more detailed parameter list, see the PARAMETERS constant.

Operation name: Lambert_Azimuthal_Equal_Area
Area of use: (union of CRS domains of validity in EPSG database)

in latitudes:	90°00.0′S	to	90°00.0′N
in longitudes:	180°00.0′W	to	180°00.0′E

Parameter name	Default value
semi_major
semi_minor
roll_longitude	false
latitude_of_center	0°
longitude_of_center	0°
false_easting	0 metres
false_northing	0 metres

Since:

2.4

Version:

3.20

Author:

Beate Stollberg, Martin Desruisseaux (Geomatys, Geomatys)

See Also:

Lambert Azimuthal Equal Area on RemoteSensing.org, Geotk coordinate operations matrix, Serialized Form

Module:

referencing/geotk-referencing (download)

View source code for this class

Field Summary

static ParameterDescriptor<Double>	FALSE_EASTING Deprecated. Invoke PARAMETERS.descriptor(String) instead.
static ParameterDescriptor<Double>	FALSE_NORTHING Deprecated. Invoke PARAMETERS.descriptor(String) instead.
static ParameterDescriptor<Double>	LATITUDE_OF_CENTRE Deprecated. Invoke PARAMETERS.descriptor(String) instead.
static ParameterDescriptor<Double>	LONGITUDE_OF_CENTRE Deprecated. Invoke PARAMETERS.descriptor(String) instead.
static ParameterDescriptorGroup	PARAMETERS The group of all parameters expected by this coordinate operation.

Fields inherited from class MapProjection

ROLL_LONGITUDE, SEMI_MAJOR, SEMI_MINOR, X_SCALE, XY_PLANE_ROTATION, Y_SCALE

Fields inherited from class DefaultOperationMethod

sourceDimension, targetDimension

Fields inherited from class FormattableObject

EPSG, GEOTIFF, INTERNAL, OGC, SINGLE_LINE

Fields inherited from interface OperationMethod

FORMULA_KEY

Fields inherited from interface IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Constructor Summary

LambertAzimuthalEqualArea()
Constructs a new provider.

Method Summary

protected MathTransform2D

createMathTransform(ParameterValueGroup values) Creates a map projection from the specified group of parameter values.

Methods inherited from class MapProjection

getOperationType

Methods inherited from class MathTransformProvider

ensureValidValues, formatWKT

Methods inherited from class DefaultOperationMethod

checkDimensions, computeHashCode, equals, getFormula, getParameters, getSourceDimensions, getTargetDimensions

Methods inherited from class AbstractIdentifiedObject

equals, getAlias, getIdentifier, getIdentifiers, getName, getName, getRemarks, hashCode, isDeprecated, nameMatches

Methods inherited from class FormattableObject

getDefaultIndentation, print, setDefaultIndentation, toString, toWKT, toWKT, toWKT, toWKT

Methods inherited from class Object

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

Methods inherited from interface IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Field Detail

LONGITUDE_OF_CENTRE

@Deprecated
public static final ParameterDescriptor<Double> LONGITUDE_OF_CENTRE

Deprecated. Invoke PARAMETERS.descriptor(String) instead.

The operation parameter descriptor for the central meridian parameter value. This parameter is mandatory. Valid values range is [-180 … 180]° and default value is 0°.

LATITUDE_OF_CENTRE

@Deprecated
public static final ParameterDescriptor<Double> LATITUDE_OF_CENTRE

Deprecated. Invoke PARAMETERS.descriptor(String) instead.

The operation parameter descriptor for the latitude of origin parameter value. This parameter is mandatory. Valid values range is [-90 … 90]° and default value is 0°.

FALSE_EASTING

@Deprecated
public static final ParameterDescriptor<Double> FALSE_EASTING

Deprecated. Invoke PARAMETERS.descriptor(String) instead.

The operation parameter descriptor for the false easting parameter value. This parameter is mandatory. Valid values range is unrestricted and default value is 0 metre.

FALSE_NORTHING

@Deprecated
public static final ParameterDescriptor<Double> FALSE_NORTHING

Deprecated. Invoke PARAMETERS.descriptor(String) instead.

The operation parameter descriptor for the false northing parameter value. This parameter is mandatory. Valid values range is unrestricted and default value is 0 metre.

PARAMETERS

public static final ParameterDescriptorGroup PARAMETERS

The group of all parameters expected by this coordinate operation. The following table lists the operation names and the parameters recognized by Geotk:

Name:	OGC:	Lambert_Azimuthal_Equal_Area
Alias:	EPSG:	Lambert Azimuthal Equal Area
	EPSG:	Lambert Azimuthal Equal Area (Spherical)
	ESRI:	Lambert_Azimuthal_Equal_Area
	NetCDF:	LambertAzimuthalEqualArea
	GeoTIFF:	CT_LambertAzimEqualArea
	PROJ4:	laea
Identifier:	EPSG:	9820
	EPSG:	1027
	EPSG:	9821
	GeoTIFF:	10

Name:	OGC:	semi_major
Alias:	EPSG:	Semi-major axis
	ESRI:	Semi_Major
	NetCDF:	semi_major_axis
	GeoTIFF:	SemiMajor
	PROJ4:	a

Type:	Double
Obligation:	mandatory
Value range:	[0…∞) metres

Name:	OGC:	semi_minor
Alias:	EPSG:	Semi-minor axis
	ESRI:	Semi_Minor
	NetCDF:	semi_minor_axis
	GeoTIFF:	SemiMinor
	PROJ4:	b

Type:	Double
Obligation:	mandatory
Value range:	[0…∞) metres

Name:

Geotk:

roll_longitude

Type:	Boolean
Obligation:	optional
Default value:	false

Name:	OGC:	latitude_of_center
Alias:	EPSG:	Latitude of natural origin
	ESRI:	Latitude_Of_Origin
	NetCDF:	latitude_of_projection_origin
	GeoTIFF:	ProjCenterLat
	PROJ4:	lat_0
	EPSG:	Spherical latitude of origin

Type:	Double
Obligation:	mandatory
Value range:	[-90 … 90]°
Default value:	0°

Name:	OGC:	longitude_of_center
Alias:	EPSG:	Longitude of natural origin
	ESRI:	Central_Meridian
	NetCDF:	longitude_of_projection_origin
	GeoTIFF:	ProjCenterLong
	PROJ4:	lon_0
	EPSG:	Spherical longitude of origin

Type:	Double
Obligation:	mandatory
Value range:	[-180 … 180]°
Default value:	0°

Name:	OGC:	false_easting
Alias:	EPSG:	False easting
	ESRI:	False_Easting
	NetCDF:	false_easting
	GeoTIFF:	FalseEasting
	PROJ4:	x_0

Type:	Double
Obligation:	mandatory
Value range:	(-∞ … ∞) metres
Default value:	0 metres

Name:	OGC:	false_northing
Alias:	EPSG:	False northing
	ESRI:	False_Northing
	NetCDF:	false_northing
	GeoTIFF:	FalseNorthing
	PROJ4:	y_0

Type:	Double
Obligation:	mandatory
Value range:	(-∞ … ∞) metres
Default value:	0 metres

Constructor Detail

LambertAzimuthalEqualArea

public LambertAzimuthalEqualArea()

Constructs a new provider.

Method Detail

createMathTransform

protected MathTransform2D createMathTransform(ParameterValueGroup values)

Creates a map projection from the specified group of parameter values.

Specified by:

createMathTransform in class MapProjection

Parameters:

values - The group of parameter values.

Returns:

The created map projection.