Package org.geotools.referencing.operation.matrix

Class Matrix4

Object

GeneralMatrix

Matrix4

All Implemented Interfaces:

Serializable, Cloneable, Matrix, Cloneable, XMatrix

public class Matrix4
extends GeneralMatrix
implements XMatrix

A matrix of fixed 4×4 size. It is used primarily for supporting datum shifts.

Since:

2.2

Author:

Martin Desruisseaux (IRD)

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	SIZE	The matrix size, which is 4.

Constructor Summary

Constructors

Constructor	Description
Matrix4()	Creates a new identity matrix.
Matrix4(double m00, double m01, double m02, double m03, double m10, double m11, double m12, double m13, double m20, double m21, double m22, double m23, double m30, double m31, double m32, double m33)	Creates a new matrix initialized to the specified values.
Matrix4(Matrix matrix)	Creates a new matrix initialized to the same value than the specified one.

Method Summary

Modifier and Type	Method	Description
Matrix4	clone()	Returns a clone of this matrix.
final int	getNumCol()	Returns the number of colmuns in this matrix, which is always 4 in this implementation.
final int	getNumRow()	Returns the number of rows in this matrix, which is always 4 in this implementation.

Methods inherited from class GeneralMatrix

add, add, add, add, copySubMatrix, determinate, equals, equals, getColumn, getElement, getElements, getElements, getRow, hashCode, invert, invert, isAffine, isIdentity, isIdentity, load, load, mul, mul, mul, mul, multiply, negate, negate, set, setColumn, setElement, setIdentity, setRow, setSize, setZero, sub, sub, sub, sub, toAffineTransform2D, toString, transpose, transpose

Methods inherited from class Object

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

Methods inherited from interface Matrix

isIdentity, setElement

Methods inherited from interface XMatrix

add, add, add, add, determinate, equals, getColumn, getElement, getRow, invert, invert, isAffine, isIdentity, mul, mul, mul, mul, multiply, negate, negate, setColumn, setIdentity, setRow, setZero, sub, sub, sub, sub, transpose, transpose

Field Details

SIZE

public static final int SIZE

The matrix size, which is 4.

See Also:

• Constant Field Values

Constructor Details

Matrix4

public Matrix4()

Creates a new identity matrix.

Matrix4

public Matrix4(double m00,
 double m01,
 double m02,
 double m03,
 double m10,
 double m11,
 double m12,
 double m13,
 double m20,
 double m21,
 double m22,
 double m23,
 double m30,
 double m31,
 double m32,
 double m33)

Creates a new matrix initialized to the specified values.

Matrix4

public Matrix4(Matrix matrix)

Creates a new matrix initialized to the same value than the specified one. The specified matrix size must be 4×4.

Method Details

getNumRow

public final int getNumRow()

Returns the number of rows in this matrix, which is always 4 in this implementation.

Specified by:

getNumRow in interface Matrix

Specified by:

getNumRow in interface XMatrix

Overrides:

getNumRow in class GeneralMatrix

Returns:

The number of rows in the matrix.

getNumCol

public final int getNumCol()

Returns the number of colmuns in this matrix, which is always 4 in this implementation.

Specified by:

getNumCol in interface Matrix

Specified by:

getNumCol in interface XMatrix

Overrides:

getNumCol in class GeneralMatrix

Returns:

The number of columns in the matrix.

clone

public Matrix4 clone()

Returns a clone of this matrix.

Specified by:

clone in interface Cloneable

Specified by:

clone in interface Matrix

Overrides:

clone in class GeneralMatrix

Returns:

A clone of this matrix.

See Also:

• Object.clone()