mikera.matrixx.impl

Class IdentityMatrix

java.lang.Object

mikera.transformz.ATransform

mikera.transformz.ALinearTransform

mikera.transformz.AAffineTransform

mikera.matrixx.AMatrix

mikera.matrixx.impl.IdentityMatrix

All Implemented Interfaces:

Cloneable, IMatrix

public class IdentityMatrix
extends AMatrix

Specialised identity matrix class. Immutable.

Author:

Mike

Method Summary

Methods

Modifier and Type	Method and Description
int	columnCount() Returns the number of columns in the matrix
static IdentityMatrix	create(int i)
double	get(int row, int column) Returns a specified element in the matrix
AVector	getLeadingDiagonal() Returns a new vector that contains the leading diagonal values of the matrix
AMatrix	getTranspose() Returns a transposed version of this matrix.
AMatrix	inverse() Return the inverse of this transformation if possible
boolean	isFullyMutable()
boolean	isIdentity() Returns true if this transform is the identity function, i.e.
boolean	isSquare()
int	rowCount() Returns the number of rows in the matrix
void	set(int row, int column, double value) Sets a specified element in the matrix
void	transform(AVector source, AVector dest) Transforms the source vector, storing the result in the given destination vector
void	transposeInPlace()

Methods inherited from class mikera.matrixx.AMatrix

add, addMultiple, asVector, clone, cloneRow, compose, compose, composeWith, composeWith, copyOfMatrix, copyOfTranslationVector, determinant, entrywiseMul, epsilonEquals, equals, equals, equals, getColumn, getMatrixComponent, getRow, getTranslationComponent, hashCode, inputDimensions, isZeroMatrix, mul, outputDimensions, set, swapColumns, swapRows, toAffineTransform, toMutableMatrix, toString, toVector, transformInPlace

Methods inherited from class mikera.transformz.AAffineTransform

compose

Methods inherited from class mikera.transformz.ALinearTransform

isLinear

Methods inherited from class mikera.transformz.ATransform

transform

Methods inherited from class java.lang.Object

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

Method Detail

create

public static IdentityMatrix create(int i)

rowCount

public int rowCount()

Description copied from class: AMatrix

Returns the number of rows in the matrix

Specified by:

rowCount in interface IMatrix

Specified by:

rowCount in class AMatrix

columnCount

public int columnCount()

Description copied from class: AMatrix

Returns the number of columns in the matrix

Specified by:

columnCount in interface IMatrix

Specified by:

columnCount in class AMatrix

get

public double get(int row,
         int column)

Description copied from class: AMatrix

Returns a specified element in the matrix

Specified by:

get in interface IMatrix

Specified by:

get in class AMatrix

set

public void set(int row,
       int column,
       double value)

Description copied from class: AMatrix

Sets a specified element in the matrix

Specified by:

set in interface IMatrix

Specified by:

set in class AMatrix

transform

public void transform(AVector source,
             AVector dest)

Description copied from class: ATransform

Transforms the source vector, storing the result in the given destination vector

Overrides:

transform in class AMatrix

isFullyMutable

public boolean isFullyMutable()

Overrides:

isFullyMutable in class AMatrix

getLeadingDiagonal

public AVector getLeadingDiagonal()

Description copied from class: AMatrix

Returns a new vector that contains the leading diagonal values of the matrix

Overrides:

getLeadingDiagonal in class AMatrix

Returns:

isSquare

public boolean isSquare()

Overrides:

isSquare in class AMatrix

isIdentity

public boolean isIdentity()

Description copied from class: ATransform

Returns true if this transform is the identity function, i.e. it maps all vectors to themselves

Overrides:

isIdentity in class AMatrix

inverse

public AMatrix inverse()

Description copied from class: ATransform

Return the inverse of this transformation if possible

Overrides:

inverse in class AMatrix

Returns:

getTranspose

public AMatrix getTranspose()

Description copied from class: AMatrix

Returns a transposed version of this matrix. May or may not be a reference.

Overrides:

getTranspose in class AMatrix

Returns:

transposeInPlace

public void transposeInPlace()

Overrides:

transposeInPlace in class AMatrix