maspack.matrix

Class Matrix2x6

java.lang.Object

maspack.matrix.MatrixBase

maspack.matrix.DenseMatrixBase

maspack.matrix.Matrix2x6

All Implemented Interfaces:

DenseMatrix, LinearTransformNd, Matrix

Direct Known Subclasses:

Matrix2x6Block

public class Matrix2x6
extends DenseMatrixBase

Implements a 2 x 6 matrix

Nested Class Summary

Nested classes/interfaces inherited from interface maspack.matrix.Matrix

Matrix.Partition, Matrix.WriteFormat

Field Summary

Fields

Modifier and Type	Field and Description
double	m00
double	m01
double	m02
double	m03
double	m04
double	m05
double	m10
double	m11
double	m12
double	m13
double	m14
double	m15
static Matrix2x6	ZERO Global zero matrix.

Fields inherited from interface maspack.matrix.Matrix

INDEFINITE, POSITIVE_DEFINITE, SPD, SYMMETRIC

Constructor Summary

Constructors

Constructor and Description
Matrix2x6() Creates a new Matrix2x6.

Method Summary

Modifier and Type	Method and Description
void	add(Matrix M) Adds this matrix to M and places the result in this matrix.
void	add(Matrix2x6 M) Adds the contents of a Matrix2x6 to this matrix block.
void	add(Matrix2x6 M1, Matrix2x6 M2) Computes M1 + M2 and places the result in this matrix.
Matrix2x6	clone() Creates a clone of this matrix.
int	colSize() Number of columns in the matrix associated with this transformation.
double	get(int i, int j) Gets a single element of this matrix.
void	getColumn(int j, double[] values) Copies a column of this matrix into an array of doubles.
void	getColumn(int j, double[] values, int off) Copies a column of this matrix into an array of doubles, starting at a specified offset.
void	getRow(int i, double[] values) Copies a row of this matrix into an array of doubles.
void	getRow(int i, double[] values, int off) Copies a row of this matrix into an array of doubles, starting at a specified offset.
void	getRow(int i, Vector3d v1, Vector3d v2) Copies a row of this Matrix6x2 into two specified vectors.
void	mulAdd(Matrix M1, Matrix M2) Multiplies M1 by M2 and places the result in this matrix.
int	rowSize() Number of rows in the matrix associated with this transformation.
void	scale(double s) Scales the elements of this matrix by s.
void	scale(double s, Matrix2x6 M) Computes s M and places the result in this matrix.
void	scaledAdd(double s, Matrix M) Scales the matrix M and add the result to this matrix.
void	scaledAdd(double s, Matrix2x6 M) Computes s M and adds the result to this matrix.
void	scaledAdd(double s, Matrix2x6 M1, Matrix2x6 M2) Computes s M1 + M2 and places the result in this matrix.
void	set(double[] values) Sets the elements of this matrix from an array of doubles.
void	set(int i, int j, double value) Sets a single element of this matrix.
void	set(Matrix M) Sets the size and values of this matrix to those of another matrix.
void	set(Matrix2x6 M) Sets the contents of this Matrix2x6 to those of a specified block.
void	setColumn(int j, double[] values) Sets a column of this matrix from an array of doubles.
void	setRow(int i, double[] values) Set a row of this matrix from an array of doubles.
void	setRow(int i, Vector3d v1, Vector3d v2) Sets a row of this Matrix6x2 from two specified vectors.
void	setZero() Sets the elements of this matrix to zero.
void	sub(Matrix M) Subtracts this matrix from M and places the result in this matrix.
void	sub(Matrix2x6 M) Subtracts the contents of a Matrix2x6 from this matrix block.
void	sub(Matrix2x6 M1, Matrix2x6 M2) Computes M1 - M2 places the result in this matrix.
void	transpose(Matrix6x2 M) Sets this matrix to the transpose of M

Methods inherited from class maspack.matrix.DenseMatrixBase

add, checkConsistency, set, set, set, setCCSValues, setColumn, setCRSValues, setRow, setSubMatrix

Methods inherited from class maspack.matrix.MatrixBase

containsNaN, determinant, epsilonEquals, equals, frobeniusNorm, frobeniusNormSquared, get, get, getCCSIndices, getCCSIndices, getCCSIndices, getCCSValues, getCCSValues, getCCSValues, getColumn, getCRSIndices, getCRSIndices, getCRSIndices, getCRSValues, getCRSValues, getCRSValues, getDefaultFormat, getRow, getSize, getSubMatrix, hasNaN, idString, infinityNorm, isFixedSize, isSymmetric, maxNorm, mul, mul, mul, mulAdd, mulAdd, mulAdd, mulTranspose, mulTranspose, mulTranspose, mulTransposeAdd, mulTransposeAdd, mulTransposeAdd, numNonZeroVals, numNonZeroVals, oneNorm, scan, setCRSValues, setDefaultFormat, setSize, toString, toString, toString, trace, write, write, write, write, write, write, writeToFile

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface maspack.matrix.Matrix

determinant, epsilonEquals, equals, frobeniusNorm, frobeniusNormSquared, get, getCCSIndices, getCCSIndices, getCCSIndices, getCCSValues, getCCSValues, getCCSValues, getColumn, getCRSIndices, getCRSIndices, getCRSIndices, getCRSValues, getCRSValues, getCRSValues, getRow, getSize, getSubMatrix, infinityNorm, isFixedSize, isSymmetric, maxNorm, mul, mul, mul, mulAdd, mulAdd, mulAdd, mulTranspose, mulTranspose, mulTranspose, mulTransposeAdd, mulTransposeAdd, mulTransposeAdd, numNonZeroVals, numNonZeroVals, oneNorm, scan, setSize, toString, toString, trace, write, write, write

Field Detail

m00

public double m00

m01

public double m01

m02

public double m02

m03

public double m03

m04

public double m04

m05

public double m05

m10

public double m10

m11

public double m11

m12

public double m12

m13

public double m13

m14

public double m14

m15

public double m15

ZERO

public static final Matrix2x6 ZERO

Global zero matrix. Should not be modified.

Constructor Detail

Matrix2x6

public Matrix2x6()

Creates a new Matrix2x6.

Method Detail

rowSize

public int rowSize()

Number of rows in the matrix associated with this transformation. This will equal the size of the output vector in mul.

Specified by:

rowSize in interface LinearTransformNd

Specified by:

rowSize in interface Matrix

Specified by:

rowSize in class MatrixBase

Returns:

number of rows

colSize

public int colSize()

Number of columns in the matrix associated with this transformation. This will equal the size of the input vector in mul.

Specified by:

colSize in interface LinearTransformNd

Specified by:

colSize in interface Matrix

Specified by:

colSize in class MatrixBase

Returns:

number of columns

get

public double get(int i,
                  int j)

Gets a single element of this matrix.

Specified by:

get in interface Matrix

Specified by:

get in class MatrixBase

Parameters:

i - element row index

j - element column index

Returns:

element value

getColumn

public void getColumn(int j,
                      double[] values)

Copies a column of this matrix into an array of doubles.

Specified by:

getColumn in interface Matrix

Overrides:

getColumn in class MatrixBase

Parameters:

j - column index

values - array into which the column is copied

getColumn

public void getColumn(int j,
                      double[] values,
                      int off)

Copies a column of this matrix into an array of doubles, starting at a specified offset.

Specified by:

getColumn in interface Matrix

Overrides:

getColumn in class MatrixBase

Parameters:

j - column index

values - array into which the column is copied

off - offset in values where copying should begin

getRow

public void getRow(int i,
                   double[] values)

Copies a row of this matrix into an array of doubles.

Specified by:

getRow in interface Matrix

Overrides:

getRow in class MatrixBase

Parameters:

i - row index

values - array into which the row is copied

getRow

public void getRow(int i,
                   double[] values,
                   int off)

Copies a row of this matrix into an array of doubles, starting at a specified offset.

Specified by:

getRow in interface Matrix

Overrides:

getRow in class MatrixBase

Parameters:

i - row index

values - array into which the row is copied

off - offset in values where copying should begin

getRow

public void getRow(int i,
                   Vector3d v1,
                   Vector3d v2)

Copies a row of this Matrix6x2 into two specified vectors.

Parameters:

i - row index

v1 - vector to recieve the first three values.

v2 - vector to recieve the second three values.

set

public void set(int i,
                int j,
                double value)

Sets a single element of this matrix.

Specified by:

set in interface DenseMatrix

Specified by:

set in class DenseMatrixBase

Parameters:

i - element row index

j - element column index

value - element value

set

public void set(double[] values)

Sets the elements of this matrix from an array of doubles. The elements in the array should be stored using row-major order, so that element (i,j) is stored at location i*colSize()+j.

Specified by:

set in interface DenseMatrix

Overrides:

set in class DenseMatrixBase

Parameters:

values - array from which values are copied

setColumn

public void setColumn(int j,
                      double[] values)

Sets a column of this matrix from an array of doubles.

Specified by:

setColumn in interface DenseMatrix

Overrides:

setColumn in class DenseMatrixBase

Parameters:

j - column index

values - array from which column values are copied

setRow

public void setRow(int i,
                   double[] values)

Set a row of this matrix from an array of doubles.

Specified by:

setRow in interface DenseMatrix

Overrides:

setRow in class DenseMatrixBase

Parameters:

i - row index

values - array from which the row is copied

setZero

public void setZero()

Sets the elements of this matrix to zero.

set

public void set(Matrix M)

Description copied from class: DenseMatrixBase

Sets the size and values of this matrix to those of another matrix.

Specified by:

set in interface Matrix

Overrides:

set in class DenseMatrixBase

Parameters:

M - matrix whose size and values are copied

set

public void set(Matrix2x6 M)

Sets the contents of this Matrix2x6 to those of a specified block.

Parameters:

M - matrix block providing new values

setRow

public void setRow(int i,
                   Vector3d v1,
                   Vector3d v2)

Sets a row of this Matrix6x2 from two specified vectors.

Parameters:

i - index of the row

v1 - vector specifying first three values.

v2 - vector specifying second three values.

scale

public void scale(double s)

Scales the elements of this matrix by s.

Parameters:

s - scaling factor

scale

public void scale(double s,
                  Matrix2x6 M)

Computes s M and places the result in this matrix.

Parameters:

s - scaling factor

M - matrix to scale

add

public void add(Matrix M)

Adds this matrix to M and places the result in this matrix.

Parameters:

M - right-hand matrix

Throws:

ImproperSizeException - if this matrix and M have different sizes

scaledAdd

public void scaledAdd(double s,
                      Matrix M)

Scales the matrix M and add the result to this matrix.

Parameters:

s - scaling factor

M - matrix to be scaled and added

Throws:

ImproperSizeException - if this matrix and M have different sizes

add

public void add(Matrix2x6 M)

Adds the contents of a Matrix2x6 to this matrix block.

Parameters:

M - matrix block to add

add

public void add(Matrix2x6 M1,
                Matrix2x6 M2)

Computes M1 + M2 and places the result in this matrix.

Parameters:

M1 - first matrix to add

M2 - second matrix to add

scaledAdd

public void scaledAdd(double s,
                      Matrix2x6 M)

Computes s M and adds the result to this matrix.

Parameters:

s - scaling factor

M - matrix to be scaled and added

scaledAdd

public void scaledAdd(double s,
                      Matrix2x6 M1,
                      Matrix2x6 M2)

Computes s M1 + M2 and places the result in this matrix.

Parameters:

s - scaling factor

M1 - matrix to be scaled

M2 - matrix to be added

sub

public void sub(Matrix M)

Subtracts this matrix from M and places the result in this matrix.

Parameters:

M - right-hand matrix

Throws:

ImproperSizeException - if this matrix and M have different sizes

sub

public void sub(Matrix2x6 M)

Subtracts the contents of a Matrix2x6 from this matrix block.

Parameters:

M - matrix block to subtract

sub

public void sub(Matrix2x6 M1,
                Matrix2x6 M2)

Computes M1 - M2 places the result in this matrix.

Parameters:

M1 - first matrix

M2 - matrix to subtract

mulAdd

public void mulAdd(Matrix M1,
                   Matrix M2)

Multiplies M1 by M2 and places the result in this matrix.

Parameters:

M1 - left matrix term

M2 - right matrix term

transpose

public void transpose(Matrix6x2 M)

Sets this matrix to the transpose of M

Parameters:

M - matrix to take the transpose of

clone

public Matrix2x6 clone()

Creates a clone of this matrix.

Overrides:

clone in class java.lang.Object