Package  Description 

org.geotools.referencing.datum 
Datum implementation.

org.geotools.referencing.operation.builder 
A package of convenience classes which use control points common to two
data sets to derive empirically the transformation parameters needed to
convert positions between the coordinate systems of the two data sets.

org.geotools.referencing.operation.matrix 
Matrix implementations on top of the
javax.vecmath package. 
org.geotools.referencing.operation.transform 
Basic implementations of math transforms.

Class and Description 

XMatrix
A matrix capable of some matrix operations.

Class and Description 

GeneralMatrix
A two dimensional array of numbers.

Class and Description 

AffineTransform2D 
GeneralMatrix
A two dimensional array of numbers.

Matrix1 
Matrix2 
Matrix3 
Matrix4 
SingularMatrixException
Matrix is singular, and thus an inverse is not available.

XMatrix
A matrix capable of some matrix operations.

Class and Description 

XAffineTransform
Utility methods for affine transforms.

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