org.geotoolkit.referencing.operation.provider
Class AbridgedMolodensky

Object
  FormattableObject
      AbstractIdentifiedObject
          DefaultOperationMethod
              MathTransformProvider
                  Molodensky
                      AbridgedMolodensky

All Implemented Interfaces:

Serializable, Formattable, Deprecable, LenientComparable, IdentifiedObject, OperationMethod

@Immutable
public class AbridgedMolodensky
extends Molodensky

The provider for "Abridged Molodensky transformation" (EPSG:9605). This provider constructs transforms from geographic to geographic coordinate reference systems, without passing though geocentric one.

The translation terms (dx, dy and dz) are common to all authorities. But remaining parameters are specified in different ways depending on the authority:

• EPSG defines "Semi-major axis length difference" and "Flattening difference" parameters.
• OGC rather defines "src_semi_major", "src_semi_minor", "tgt_semi_major", "tgt_semi_minor" and "dim" parameters.
• Geotk splits the OGC "dim" parameters in two separated "src_dim" and "tgt_dim" parameters.

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

Operation name: Abridged_Molodenski

Parameter name	Default value
dim	2
src_dim	2
tgt_dim	2
dx	0 metres
dy	0 metres
dz	0 metres
src_semi_major
src_semi_minor
tgt_semi_major
tgt_semi_minor
Semi-major axis length difference
Flattening difference

Since:

2.1

Version:

3.20

Author:

Rueben Schulz (UBC), Martin Desruisseaux (IRD, Geomatys)

See Also:

MolodenskyTransform, Geotk coordinate operations matrix, Serialized Form

Module:

referencing/geotk-referencing (download)

View source code for this class

Field Summary

static ParameterDescriptorGroup

PARAMETERS The group of all parameters expected by this coordinate operation.

Fields inherited from class Molodensky

AXIS_LENGTH_DIFFERENCE, DIM, DX, DY, DZ, FLATTENING_DIFFERENCE, SRC_DIM, SRC_SEMI_MAJOR, SRC_SEMI_MINOR, TGT_DIM, TGT_SEMI_MAJOR, TGT_SEMI_MINOR

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

AbridgedMolodensky()
Constructs a provider.

Method Summary

Methods inherited from class Molodensky

createMathTransform, 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

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. Note that the "Semi-major axis length difference" and "Flattening difference" parameters are exclusive with all "src_*" and "tgt_*" parameters (see class javadoc).

Name:	OGC:	Abridged_Molodenski
Alias:	EPSG:	Abridged Molodensky
	Geotk:	Abridged Molodensky transform
Identifier:	EPSG:	9605

Name:

OGC:

dim

Type:	Integer
Obligation:	optional
Value range:	[2…3]
Default value:	2

Name:

Geotk:

src_dim

Type:	Integer
Obligation:	optional
Value range:	[2…3]
Default value:	2

Name:

Geotk:

tgt_dim

Type:	Integer
Obligation:	optional
Value range:	[2…3]
Default value:	2

Name:	OGC:	dx
Alias:	EPSG:	X-axis translation

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

Name:	OGC:	dy
Alias:	EPSG:	Y-axis translation

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

Name:	OGC:	dz
Alias:	EPSG:	Z-axis translation

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

Name:

OGC:

src_semi_major

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

Name:

OGC:

src_semi_minor

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

Name:

OGC:

tgt_semi_major

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

Name:

OGC:

tgt_semi_minor

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

Name:

EPSG:

Semi-major axis length difference

Type:	Double
Obligation:	optional
Value range:	(-∞ … ∞) metres

Name:

EPSG:

Flattening difference

Type:	Double
Obligation:	optional
Value range:	[-1 … 1]

Constructor Detail

AbridgedMolodensky

public AbridgedMolodensky()

Constructs a provider.