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Class java.vecmath.Matrix3f

java.lang.Object
   |
   +----java.vecmath.Matrix3f

public class Matrix3f

extends Object

m00

The first matrix element in the first row.

m01

The second matrix element in the first row.

m02

The third matrix element in the first row.

m10

The first matrix element in the second row.

m11

The second matrix element in the second row.

m12

The third matrix element in the second row.

m20

The first matrix element in the third row.

m21

The second matrix element in the third row.

m22

The third matrix element in the third row.

Matrix3f()

Constructs and initializes a Matrix3f to all zeros.

Matrix3f(float, float, float, float, float, float, float, float, float)

Constructs and initializes a Matrix3f from the specified nine values.

Matrix3f(float[])

Constructs and initializes a Matrix3f from the specified nine- element array.

Matrix3f(Matrix3d)

Constructs a new matrix with the same values as the Matrix3d parameter.

Matrix3f(Matrix3f)

Constructs a new matrix with the same values as the Matrix3f parameter.

add(float)

Adds a scalar to each component of this matrix.

add(float, Matrix3f)

Adds a scalar to each component of the matrix m1 and places the result into this.

add(Matrix3f)

Sets the value of this matrix to the matrix sum of itself and matrix m1.

add(Matrix3f, Matrix3f)

Sets the value of this matrix to the matrix sum of matrices m1 and m2.

determinant()

Computes the determinant of this matrix.

epsilonEquals(Matrix3f, float)

Returns true if the L-infinite distance between this matrix and matrix m1 is less than or equal to the epsilon parameter, otherwise returns false.

equals(Matrix3f)

Returns true if all of the data members of Matrix3f m1 are equal to the corresponding data members in this Matrix3f.

getElement(int, int)

Retrieves the value at the specified row and column of this matrix.

getScale()

Performs an SVD normalization of this matrix to calculate and return the uniform scale factor.

hashCode()

Returns a hash number based on the data values in this object.

invert()

Inverts this matrix in place.

invert(Matrix3f)

Sets the value of this matrix to the matrix inverse of the passed matrix m1.

mul(float)

Multiplies each element of this matrix by a scalar.

mul(float, Matrix3f)

Multiplies each element of matrix m1 by a scalar and places the result into this.

mul(Matrix3f)

Sets the value of this matrix to the result of multiplying itself with matrix m1.

mul(Matrix3f, Matrix3f)

Sets the value of this matrix to the result of multiplying the two argument matrices together.

mulNormalize(Matrix3f)

Multiplies this matrix by matrix m1, does an SVD normalization of the result, and places the result back into this matrix this = SVDnorm(this*m1).

mulNormalize(Matrix3f, Matrix3f)

Multiplies matrix m1 by matrix m2, does an SVD normalization of the result, and places the result into this matrix this = SVDnorm(m1*m2).

mulTransposeBoth(Matrix3f, Matrix3f)

Multiplies the transpose of matrix m1 times the transpose of matrix m2, and places the result into this.

mulTransposeLeft(Matrix3f, Matrix3f)

Multiplies the transpose of matrix m1 times matrix m2, and places the result into this.

mulTransposeRight(Matrix3f, Matrix3f)

Multiplies matrix m1 times the transpose of matrix m2, and places the result into this.

negate()

Negates the value of this matrix: this = -this.

negate(Matrix3f)

Sets the value of this matrix equal to the negation of of the Matrix3f parameter.

normalize()

Performs singular value decomposition normalization of this matrix.

normalize(Matrix3f)

Perform singular value decomposition normalization of matrix m1 and place the normalized values into this.

normalizeCP()

Perform cross product normalization of this matrix.

normalizeCP(Matrix3f)

Perform cross product normalization of matrix m1 and place the normalized values into this.

rotX(float)

Sets the value of this matrix to a rotation matrix about the x axis by the passed angle.

rotY(float)

Sets the value of this matrix to a rotation matrix about the y axis by the passed angle.

rotZ(float)

Sets the value of this matrix to a rotation matrix about the z axis by the passed angle.

set(AxisAngle4d)

set(AxisAngle4f)

Sets the value of this matrix to the matrix conversion of the (single precision) axis and angle argument.

set(float)

Sets the value of this matrix to a scale matrix with the passed scale amount.

set(float[])

Sets the values in this Matrix3f equal to the row-major array parameter (ie, the first three elements of the array will be copied into the first row of this matrix, etc.).

set(Quat4d)

Sets the value of this matrix to the matrix conversion of the (single precision) quaternion argument.

set(Quat4f)

Sets the value of this matrix to the matrix conversion of the (single precision) quaternion argument.

setColumn(int, float, float, float)

Sets the specified column of this matrix3f to the three values provided.

setColumn(int, float[])

Sets the specified column of this matrix3f to the three values provided.

setColumn(int, Vector3f)

Sets the specified column of this matrix3f to the vector provided.

setElement(int, int, float)

Sets the specified element of this matrix3f to the value provided.

setIdentity()

Sets this Matrix3f to identity.

setRow(int, float, float, float)

Sets the specified row of this matrix3f to the three values provided.

setRow(int, float[])

Sets the specified row of this matrix3f to the three values provided.

setRow(int, Vector3f)

Sets the specified row of this matrix3f to the Vector provided.

setScale(float)

Sets the scale component of the current matrix by factoring out the current scale (by doing an SVD) and multiplying by the new scale.

setZero()

Sets this matrix to all zeros.

sub(Matrix3f)

Sets the value of this matrix to the matrix difference of itself and matrix m1 (this = this - m1).

sub(Matrix3f, Matrix3f)

Sets the value of this matrix to the matrix difference of matrices m1 and m2.

toString()

Returns a string that contains the values of this Matrix3f.

transform(Tuple3f)

transform(Tuple3f, Tuple3f)

transpose()

Sets the value of this matrix to its transpose.

transpose(Matrix3f)

Sets the value of this matrix to the transpose of the argument matrix.

 public float m00

The first matrix element in the first row.

 public float m01

The second matrix element in the first row.

 public float m02

The third matrix element in the first row.

 public float m10

The first matrix element in the second row.

 public float m11

The second matrix element in the second row.

 public float m12

The third matrix element in the second row.

 public float m20

The first matrix element in the third row.

 public float m21

The second matrix element in the third row.

 public float m22

The third matrix element in the third row.

 public Matrix3f(float m00,
                 float m01,
                 float m02,
                 float m10,
                 float m11,
                 float m12,
                 float m20,
                 float m21,
                 float m22)

Constructs and initializes a Matrix3f from the specified nine values.

Parameters:

m00 - the [0][0] element

m01 - the [0][1] element

m02 - the [0][2] element

m10 - the [1][0] element

m11 - the [1][1] element

m12 - the [1][2] element

m20 - the [2][0] element

m21 - the [2][1] element

m22 - the [2][2] element

 public Matrix3f(float v[])

Constructs and initializes a Matrix3f from the specified nine- element array. this.m00 =v[0], this.m01=v[1], etc.

Parameters:

v - the array of length 9 containing in order

 public Matrix3f(Matrix3d m1)

Constructs a new matrix with the same values as the Matrix3d parameter.

Parameters:

m1 - The source matrix.

 public Matrix3f(Matrix3f m1)

Constructs a new matrix with the same values as the Matrix3f parameter.

Parameters:

m1 - The source matrix.

 public Matrix3f()

Constructs and initializes a Matrix3f to all zeros.

 public String toString()

Returns a string that contains the values of this Matrix3f.

Returns:

the String representation

Overrides:

toString in class Object

 public final void setIdentity()

Sets this Matrix3f to identity.

 public final void setScale(float scale)

Sets the scale component of the current matrix by factoring out the current scale (by doing an SVD) and multiplying by the new scale.

Parameters:

scale - the new scale amount

 public final void setElement(int row,
                              int column,
                              float value)

Sets the specified element of this matrix3f to the value provided.

Parameters:

row - the row number to be modified (zero indexed)

column - the column number to be modified (zero indexed)

value - the new value

 public final float getElement(int row,
                               int column)

Retrieves the value at the specified row and column of this matrix.

Parameters:

row - the row number to be retrieved (zero indexed)

column - the column number to be retrieved (zero indexed)

m - the matrix

Returns:

the value at the indexed element.

 public final void setRow(int row,
                          float x,
                          float y,
                          float z)

Sets the specified row of this matrix3f to the three values provided.

Parameters:

row - the row number to be modified (zero indexed)

x - the first column element

y - the second column element

z - the third column element

 public final void setRow(int row,
                          Vector3f v)

Sets the specified row of this matrix3f to the Vector provided.

Parameters:

row - the row number to be modified (zero indexed)

v - the replacement row

 public final void setRow(int row,
                          float v[])

Sets the specified row of this matrix3f to the three values provided.

Parameters:

row - the row number to be modified (zero indexed)

v - the replacement row

 public final void setColumn(int column,
                             float x,
                             float y,
                             float z)

Sets the specified column of this matrix3f to the three values provided.

Parameters:

column - the column number to be modified (zero indexed)

x - the first row element

y - the second row element

z - the third row element

 public final void setColumn(int column,
                             Vector3f v)

Sets the specified column of this matrix3f to the vector provided.

Parameters:

column - the column number to be modified (zero indexed)

v - the replacement column

 public final void setColumn(int column,
                             float v[])

Sets the specified column of this matrix3f to the three values provided.

Parameters:

column - the column number to be modified (zero indexed)

v - the replacement column

 public final float getScale()

Performs an SVD normalization of this matrix to calculate and return the uniform scale factor. This matrix is not modified.

Returns:

the scale factor of this matrix

 public final void add(float scalar)

Adds a scalar to each component of this matrix.

Parameters:

scalar - The scalar adder.

 public final void add(float scalar,
                       Matrix3f m1)

Adds a scalar to each component of the matrix m1 and places the result into this. Matrix m1 is not modified.

Parameters:

scalar - The scalar adder.

m1 - The original matrix values.

 public final void add(Matrix3f m1,
                       Matrix3f m2)

Sets the value of this matrix to the matrix sum of matrices m1 and m2.

Parameters:

m1 - the first matrix

m2 - the second matrix

 public final void add(Matrix3f m1)

Sets the value of this matrix to the matrix sum of itself and matrix m1.

Parameters:

m1 - the other matrix

 public final void sub(Matrix3f m1,
                       Matrix3f m2)

Sets the value of this matrix to the matrix difference of matrices m1 and m2.

Parameters:

m1 - the first matrix

m2 - the second matrix

 public final void sub(Matrix3f m1)

Sets the value of this matrix to the matrix difference of itself and matrix m1 (this = this - m1).

Parameters:

m1 - the other matrix

 public final void transpose()

Sets the value of this matrix to its transpose.

 public final void transpose(Matrix3f m1)

Sets the value of this matrix to the transpose of the argument matrix.

Parameters:

m1 - the matrix to be transposed

 public final void set(Quat4f q1)

Sets the value of this matrix to the matrix conversion of the (single precision) quaternion argument.

Parameters:

q1 - the quaternion to be converted

 public final void set(AxisAngle4f a1)

Sets the value of this matrix to the matrix conversion of the (single precision) axis and angle argument.

Parameters:

a1 - the axis and angle to be converted

 public final void set(AxisAngle4d a1)

 public final void set(Quat4d q1)

Sets the value of this matrix to the matrix conversion of the (single precision) quaternion argument.

Parameters:

q1 - the quaternion to be converted

 public final void set(float m[])

Sets the values in this Matrix3f equal to the row-major array parameter (ie, the first three elements of the array will be copied into the first row of this matrix, etc.).

Parameters:

m - The single precision array of length 9

 public final void invert(Matrix3f m1)

Sets the value of this matrix to the matrix inverse of the passed matrix m1.

Parameters:

m1 - the matrix to be inverted

 public final void invert()

Inverts this matrix in place.

 public final float determinant()

Computes the determinant of this matrix.

Returns:

the determinant of this matrix

 public final void set(float scale)

Sets the value of this matrix to a scale matrix with the passed scale amount.

Parameters:

scale - the scale factor for the matrix

 public final void rotX(float angle)

Sets the value of this matrix to a rotation matrix about the x axis by the passed angle.

Parameters:

angle - the angle to rotate about the X axis in radians

 public final void rotY(float angle)

Sets the value of this matrix to a rotation matrix about the y axis by the passed angle.

Parameters:

angle - the angle to rotate about the Y axis in radians

 public final void rotZ(float angle)

Sets the value of this matrix to a rotation matrix about the z axis by the passed angle.

Parameters:

angle - the angle to rotate about the Z axis in radians

 public final void mul(float scalar)

Multiplies each element of this matrix by a scalar.

Parameters:

scalar - The scalar multiplier.

 public final void mul(float scalar,
                       Matrix3f m1)

Multiplies each element of matrix m1 by a scalar and places the result into this. Matrix m1 is not modified.

Parameters:

scalar - The scalar multiplier.

m1 - The original matrix.

 public final void mul(Matrix3f m1)

Sets the value of this matrix to the result of multiplying itself with matrix m1.

Parameters:

m1 - the other matrix

 public final void mul(Matrix3f m1,
                       Matrix3f m2)

Sets the value of this matrix to the result of multiplying the two argument matrices together.

Parameters:

m1 - the first matrix

m2 - the second matrix

 public final void mulNormalize(Matrix3f m1)

Multiplies this matrix by matrix m1, does an SVD normalization of the result, and places the result back into this matrix this = SVDnorm(this*m1).

Parameters:

The - matrix on the right hand side of the multiplication

 public final void mulNormalize(Matrix3f m1,
                                Matrix3f m2)

Multiplies matrix m1 by matrix m2, does an SVD normalization of the result, and places the result into this matrix this = SVDnorm(m1*m2).

Parameters:

m1 - The matrix on the left hand side of the multiplication

m2 - The matrix on the right hand side of the multiplication

 public final void mulTransposeBoth(Matrix3f m1,
                                    Matrix3f m2)

Multiplies the transpose of matrix m1 times the transpose of matrix m2, and places the result into this.

Parameters:

m1 - The matrix on the left hand side of the multiplication

m2 - The matrix on the right hand side of the multiplication

 public final void mulTransposeRight(Matrix3f m1,
                                     Matrix3f m2)

Multiplies matrix m1 times the transpose of matrix m2, and places the result into this.

Parameters:

m1 - The matrix on the left hand side of the multiplication

m2 - The matrix on the right hand side of the multiplication

 public final void mulTransposeLeft(Matrix3f m1,
                                    Matrix3f m2)

Multiplies the transpose of matrix m1 times matrix m2, and places the result into this.

Parameters:

m1 - The matrix on the left hand side of the multiplication

m2 - The matrix on the right hand side of the multiplication

 public final void normalize()

Performs singular value decomposition normalization of this matrix.

 public final void normalize(Matrix3f m1)

Perform singular value decomposition normalization of matrix m1 and place the normalized values into this.

Parameters:

m1 - Provides the matrix values to be normalized

 public final void normalizeCP()

Perform cross product normalization of this matrix.

 public final void normalizeCP(Matrix3f m1)

Perform cross product normalization of matrix m1 and place the normalized values into this.

Parameters:

m1 - Provides the matrix values to be normalized

 public boolean equals(Matrix3f m1)

Returns true if all of the data members of Matrix3f m1 are equal to the corresponding data members in this Matrix3f.

Parameters:

m1 - The matrix with which the comparison is made.

Returns:

true or false

 public boolean epsilonEquals(Matrix3f m1,
                              float epsilon)

Returns true if the L-infinite distance between this matrix and matrix m1 is less than or equal to the epsilon parameter, otherwise returns false. The L-infinite distance is equal to MAX[i=0,1,2 ; j=0,1,2 ; abs(this.m(i,j) - m1.m(i,j)]

Parameters:

m1 - The matrix to be compared to this matrix

epsilon - the threshold value

 public int hashCode()

Returns a hash number based on the data values in this object. Two different Matrix3f objects with identical data values (ie, returns true for equals(Matrix3f) ) will return the same hash number. Two objects with different data members may return the same hash value, although this is not likely.

Returns:

the integer hash value

Overrides:

hashCode in class Object

 public final void setZero()

Sets this matrix to all zeros.

 public final void negate()

Negates the value of this matrix: this = -this.

 public final void negate(Matrix3f m1)

Sets the value of this matrix equal to the negation of of the Matrix3f parameter.

Parameters:

m1 - The source matrix

 public final void transform(Tuple3f t)

 public final void transform(Tuple3f t,
                             Tuple3f result)

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