Package org.geotoolkit.referencing.operation.transform

Math transform implementations.

See:
Description

Interface Summary

EllipsoidalTransform	A MathTransform where the source and/or the target coordinate system is ellipsoidal.
LinearTransform	A MathTransform which can be represented by a matrix.
Parameterized	An object (usually a MathTransform) which can supply its parameters in a ParameterValueGroup.

Class Summary

AbstractMathTransform	Provides a default implementation for most methods required by the MathTransform interface.
AbstractMathTransform1D	Base class for math transforms that are known to be one-dimensional in all cases.
AbstractMathTransform2D	Base class for math transforms that are known to be two-dimensional in all cases.
AbstractMathTransform2D.Parameters	The parameters of the enclosing transform as a tuple of (normalize – non-linear kernel – denormalize) transforms.
AffineTransform2D	Transforms two-dimensional coordinate points using an affine transform.
ConcatenatedTransform	Base class for concatenated transforms.
DimensionFilter	An utility class for the separation of concatenation of pass through transforms.
ExponentialTransform1D	A one dimensional exponential transform.
GeocentricAffineTransform	An affine transform applied on geocentric coordinates.
GeocentricTransform	Transforms three dimensional geographic points to geocentric coordinate points.
GridTransform	Transforms a set of coordinate points using bilinear interpolation in a grid.
GridTransform2D	A specialization of GridTransform in the two-dimensional case.
IdentityTransform	The identity transform.
LinearTransform1D	A one dimensional, linear transform.
LogarithmicTransform1D	A one dimensional, logarithmic transform.
MolodenskyTransform	Two- or three-dimensional datum shift using the (potentially abridged) Molodensky transformation.
NadconTransform	The NADCON transform (EPSG code 9613).
NTv2Transform	Transform based on a NTv2 grid (EPSG code 9615).
PassThroughTransform	Transform which passes through a subset of ordinates to another transform.
ProjectiveTransform	A usually affine, or otherwise a projective transform.

Enum Summary

GridType	Whatever the grid values backing a GridTransform are directly the target coordinates or offsets to apply on the source coordinates.
IterationStrategy	Strategy for iterating over the point arrays given to transform methods.

Package org.geotoolkit.referencing.operation.transform Description

Math transform implementations. This package does not include map projections, which are a special kind of transforms defined in their own projection package.

Users wanting to know more about the available transforms (including map projections) and their parameters should look at the provider package.

Grid data
Some transforms are backed by a grid of data. This is the case for example of the NADCON transform, which implements a datum shift for the United States. The data may need to be downloaded separatly. To download the data, see the geotk-setup module.

Since:

1.2

Version:

3.00

Author:

Martin Desruisseaux (IRD, Geomatys)

See Also:

org.geotoolkit.referencing.operation.provider

Module:

referencing/geotk-referencing (download)