Package javax.vecmath
Class Matrix4f
- java.lang.Object
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- javax.vecmath.Matrix4f
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- All Implemented Interfaces:
Serializable
,Cloneable
public class Matrix4f extends Object implements Serializable, Cloneable
A single precision floating point 4 by 4 matrix. Primarily to support 3D rotations.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description float
m00
The first element of the first row.float
m01
The second element of the first row.float
m02
The third element of the first row.float
m03
The fourth element of the first row.float
m10
The first element of the second row.float
m11
The second element of the second row.float
m12
The third element of the second row.float
m13
The fourth element of the second row.float
m20
The first element of the third row.float
m21
The second element of the third row.float
m22
The third element of the third row.float
m23
The fourth element of the third row.float
m30
The first element of the fourth row.float
m31
The second element of the fourth row.float
m32
The third element of the fourth row.float
m33
The fourth element of the fourth row.
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Constructor Summary
Constructors Constructor Description Matrix4f()
Constructs and initializes a Matrix4f to all zeros.Matrix4f(float[] v)
Constructs and initializes a Matrix4f from the specified 16 element array.Matrix4f(float m00, float m01, float m02, float m03, float m10, float m11, float m12, float m13, float m20, float m21, float m22, float m23, float m30, float m31, float m32, float m33)
Constructs and initializes a Matrix4f from the specified 16 values.Matrix4f(Matrix3f m1, Vector3f t1, float s)
Constructs and initializes a Matrix4f from the rotation matrix, translation, and scale values; the scale is applied only to the rotational components of the matrix (upper 3x3) and not to the translational components of the matrix.Matrix4f(Matrix4d m1)
Constructs a new matrix with the same values as the Matrix4d parameter.Matrix4f(Matrix4f m1)
Constructs a new matrix with the same values as the Matrix4f parameter.Matrix4f(Quat4f q1, Vector3f t1, float s)
Constructs and initializes a Matrix4f from the quaternion, translation, and scale values; the scale is applied only to the rotational components of the matrix (upper 3x3) and not to the translational components.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(float scalar)
Adds a scalar to each component of this matrix.void
add(float scalar, Matrix4f m1)
Adds a scalar to each component of the matrix m1 and places the result into this.void
add(Matrix4f m1)
Sets the value of this matrix to the sum of itself and matrix m1.void
add(Matrix4f m1, Matrix4f m2)
Sets the value of this matrix to the matrix sum of matrices m1 and m2.Object
clone()
Creates a new object of the same class as this object.float
determinant()
Computes the determinate of this matrix.boolean
epsilonEquals(Matrix4f 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.boolean
equals(Object t1)
Returns true if the Object t1 is of type Matrix4f and all of the data members of t1 are equal to the corresponding data members in this Matrix4f.boolean
equals(Matrix4f m1)
Returns true if all of the data members of Matrix4f m1 are equal to the corresponding data members in this Matrix4f.void
get(Matrix3d m1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Matrix3d parameter.void
get(Matrix3f m1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Matrix3f parameter.float
get(Matrix3f m1, Vector3f t1)
Performs an SVD normalization of this matrix to calculate the rotation as a 3x3 matrix, the translation, and the scale.void
get(Quat4f q1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Quat4f parameter.void
get(Vector3f trans)
Retrieves the translational components of this matrix.void
getColumn(int column, float[] v)
Copies the matrix values in the specified column into the array parameter.void
getColumn(int column, Vector4f v)
Copies the matrix values in the specified column into the vector parameter.float
getElement(int row, int column)
Retrieves the value at the specified row and column of this matrix.float
getM00()
Get the first matrix element in the first row.float
getM01()
Get the second matrix element in the first row.float
getM02()
Get the third matrix element in the first row.float
getM03()
Get the fourth element of the first row.float
getM10()
Get first matrix element in the second row.float
getM11()
Get second matrix element in the second row.float
getM12()
Get the third matrix element in the second row.float
getM13()
Get the fourth element of the second row.float
getM20()
Get the first matrix element in the third row.float
getM21()
Get the second matrix element in the third row.float
getM22()
Get the third matrix element in the third row.float
getM23()
Get the fourth element of the third row.float
getM30()
Get the first element of the fourth row.float
getM31()
Get the second element of the fourth row.float
getM32()
Get the third element of the fourth row.float
getM33()
Get the fourth element of the fourth row.void
getRotationScale(Matrix3f m1)
Gets the upper 3x3 values of this matrix and places them into the matrix m1.void
getRow(int row, float[] v)
Copies the matrix values in the specified row into the array parameter.void
getRow(int row, Vector4f v)
Copies the matrix values in the specified row into the vector parameter.float
getScale()
Performs an SVD normalization of this matrix to calculate and return the uniform scale factor.int
hashCode()
Returns a hash code value based on the data values in this object.void
invert()
Inverts this matrix in place.void
invert(Matrix4f m1)
Sets the value of this matrix to the matrix inverse of the passed (user declared) matrix m1.void
mul(float scalar)
Multiplies each element of this matrix by a scalar.void
mul(float scalar, Matrix4f m1)
Multiplies each element of matrix m1 by a scalar and places the result into this.void
mul(Matrix4f m1)
Sets the value of this matrix to the result of multiplying itself with matrix m1.void
mul(Matrix4f m1, Matrix4f m2)
Sets the value of this matrix to the result of multiplying the two argument matrices together.void
mulTransposeBoth(Matrix4f m1, Matrix4f m2)
Multiplies the transpose of matrix m1 times the transpose of matrix m2, and places the result into this.void
mulTransposeLeft(Matrix4f m1, Matrix4f m2)
Multiplies the transpose of matrix m1 times matrix m2, and places the result into this.void
mulTransposeRight(Matrix4f m1, Matrix4f m2)
Multiplies matrix m1 times the transpose of matrix m2, and places the result into this.void
negate()
Negates the value of this matrix: this = -this.void
negate(Matrix4f m1)
Sets the value of this matrix equal to the negation of of the Matrix4f parameter.void
rotX(float angle)
Sets the value of this matrix to a counter clockwise rotation about the x axis.void
rotY(float angle)
Sets the value of this matrix to a counter clockwise rotation about the y axis.void
rotZ(float angle)
Sets the value of this matrix to a counter clockwise rotation about the z axis.void
set(float scale)
Sets the value of this matrix to a scale matrix with the the passed scale amount.void
set(float[] m)
Sets the values in this Matrix4f equal to the row-major array parameter (ie, the first four elements of the array will be copied into the first row of this matrix, etc.).void
set(float scale, Vector3f t1)
Sets the value of this transform to a scale and translation matrix; the scale is not applied to the translation and all of the matrix values are modified.void
set(AxisAngle4d a1)
Sets the value of this matrix to the matrix conversion of the double precision axis and angle argument.void
set(AxisAngle4f a1)
Sets the value of this matrix to the matrix conversion of the (single precision) axis and angle argument.void
set(Matrix3d m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the double precision Matrix3d argument; the other elements of this matrix are initialized as if this were an identity matrix (i.e., affine matrix with no translational component).void
set(Matrix3d m1, Vector3d t1, double scale)
Sets the value of this matrix from the rotation expressed by the rotation matrix m1, the translation t1, and the scale factor.void
set(Matrix3f m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the single precision Matrix3f argument; the other elements of this matrix are initialized as if this were an identity matrix (i.e., affine matrix with no translational component).void
set(Matrix3f m1, Vector3f t1, float scale)
Sets the value of this matrix from the rotation expressed by the rotation matrix m1, the translation t1, and the scale factor.void
set(Matrix4d m1)
Sets the value of this matrix to the float value of the passed matrix4d m1.void
set(Matrix4f m1)
Sets the value of this matrix to a copy of the passed matrix m1.void
set(Quat4d q1)
Sets the value of this matrix to the matrix conversion of the double precision quaternion argument.void
set(Quat4d q1, Vector3d t1, double s)
Sets the value of this matrix from the rotation expressed by the quaternion q1, the translation t1, and the scale s.void
set(Quat4f q1)
Sets the value of this matrix to the matrix conversion of the single precision quaternion argument.void
set(Quat4f q1, Vector3f t1, float s)
Sets the value of this matrix from the rotation expressed by the quaternion q1, the translation t1, and the scale s.void
set(Vector3f v1)
Sets the value of this matrix to a translate matrix with the passed translation value.void
set(Vector3f t1, float scale)
Sets the value of this transform to a scale and translation matrix; the translation is scaled by the scale factor and all of the matrix values are modified.void
setColumn(int column, float[] v)
Sets the specified column of this matrix4f to the four values provided.void
setColumn(int column, float x, float y, float z, float w)
Sets the specified column of this matrix4f to the four values provided.void
setColumn(int column, Vector4f v)
Sets the specified column of this matrix4f to the vector provided.void
setElement(int row, int column, float value)
Sets the specified element of this matrix4f to the value provided.void
setIdentity()
Sets this Matrix4f to identity.void
setM00(float m00)
Set the first matrix element in the first row.void
setM01(float m01)
Set the second matrix element in the first row.void
setM02(float m02)
Set the third matrix element in the first row.void
setM03(float m03)
Set the fourth element of the first row.void
setM10(float m10)
Set first matrix element in the second row.void
setM11(float m11)
Set the second matrix element in the second row.void
setM12(float m12)
Set the third matrix element in the second row.void
setM13(float m13)
Set the fourth element of the second row.void
setM20(float m20)
Set the first matrix element in the third row.void
setM21(float m21)
Set the second matrix element in the third row.void
setM22(float m22)
Set the third matrix element in the third row.void
setM23(float m23)
Set the fourth element of the third row.void
setM30(float m30)
Set the first element of the fourth row.void
setM31(float m31)
Set the second element of the fourth row.void
setM32(float m32)
Set the third element of the fourth row.void
setM33(float m33)
Set the fourth element of the fourth row.void
setRotation(AxisAngle4f a1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the axis-angle argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the axis-angle, and then the scale is reapplied to the rotational components.void
setRotation(Matrix3d m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the double precision Matrix3d argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components.void
setRotation(Matrix3f m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the single precision Matrix3f argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components.void
setRotation(Quat4d q1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the quaternion argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the quaternion, and then the scale is reapplied to the rotational components.void
setRotation(Quat4f q1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the quaternion argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the quaternion, and then the scale is reapplied to the rotational components.void
setRotationScale(Matrix3f m1)
Replaces the upper 3x3 matrix values of this matrix with the values in the matrix m1.void
setRow(int row, float[] v)
Sets the specified row of this matrix4f to the four values provided in the passed array.void
setRow(int row, float x, float y, float z, float w)
Sets the specified row of this matrix4f to the four values provided.void
setRow(int row, Vector4f v)
Sets the specified row of this matrix4f to the Vector provided.void
setScale(float scale)
Sets the scale component of the current matrix by factoring out the current scale (by doing an SVD) from the rotational component and multiplying by the new scale.void
setTranslation(Vector3f trans)
Modifies the translational components of this matrix to the values of the Vector3f argument; the other values of this matrix are not modified.void
setZero()
Sets this matrix to all zeros.void
sub(Matrix4f m1)
Sets this matrix to the matrix difference of itself and matrix m1 (this = this - m1).void
sub(Matrix4f m1, Matrix4f m2)
Performs an element-by-element subtraction of matrix m2 from matrix m1 and places the result into matrix this (this = m2 - m1).String
toString()
Returns a string that contains the values of this Matrix4f.void
transform(Point3f point)
Transforms the point parameter with this Matrix4f and places the result back into point.void
transform(Point3f point, Point3f pointOut)
Transforms the point parameter with this Matrix4f and places the result into pointOut.void
transform(Tuple4f vec)
Transform the vector vec using this Transform and place the result back into vec.void
transform(Tuple4f vec, Tuple4f vecOut)
Transform the vector vec using this Matrix4f and place the result into vecOut.void
transform(Vector3f normal)
Transforms the normal parameter by this transform and places the value back into normal.void
transform(Vector3f normal, Vector3f normalOut)
Transforms the normal parameter by this Matrix4f and places the value into normalOut.void
transpose()
Sets the value of this matrix to its transpose in place.void
transpose(Matrix4f m1)
Sets the value of this matrix to the transpose of the argument matrix.
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Field Detail
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m00
public float m00
The first element of the first row.
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m01
public float m01
The second element of the first row.
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m02
public float m02
The third element of the first row.
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m03
public float m03
The fourth element of the first row.
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m10
public float m10
The first element of the second row.
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m11
public float m11
The second element of the second row.
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m12
public float m12
The third element of the second row.
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m13
public float m13
The fourth element of the second row.
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m20
public float m20
The first element of the third row.
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m21
public float m21
The second element of the third row.
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m22
public float m22
The third element of the third row.
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m23
public float m23
The fourth element of the third row.
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m30
public float m30
The first element of the fourth row.
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m31
public float m31
The second element of the fourth row.
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m32
public float m32
The third element of the fourth row.
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m33
public float m33
The fourth element of the fourth row.
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Constructor Detail
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Matrix4f
public Matrix4f(float m00, float m01, float m02, float m03, float m10, float m11, float m12, float m13, float m20, float m21, float m22, float m23, float m30, float m31, float m32, float m33)
Constructs and initializes a Matrix4f from the specified 16 values.- Parameters:
m00
- the [0][0] elementm01
- the [0][1] elementm02
- the [0][2] elementm03
- the [0][3] elementm10
- the [1][0] elementm11
- the [1][1] elementm12
- the [1][2] elementm13
- the [1][3] elementm20
- the [2][0] elementm21
- the [2][1] elementm22
- the [2][2] elementm23
- the [2][3] elementm30
- the [3][0] elementm31
- the [3][1] elementm32
- the [3][2] elementm33
- the [3][3] element
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Matrix4f
public Matrix4f(float[] v)
Constructs and initializes a Matrix4f from the specified 16 element array. this.m00 =v[0], this.m01=v[1], etc.- Parameters:
v
- the array of length 16 containing in order
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Matrix4f
public Matrix4f(Quat4f q1, Vector3f t1, float s)
Constructs and initializes a Matrix4f from the quaternion, translation, and scale values; the scale is applied only to the rotational components of the matrix (upper 3x3) and not to the translational components.- Parameters:
q1
- the quaternion value representing the rotational componentt1
- the translational component of the matrixs
- the scale value applied to the rotational components
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Matrix4f
public Matrix4f(Matrix4d m1)
Constructs a new matrix with the same values as the Matrix4d parameter.- Parameters:
m1
- the source matrix
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Matrix4f
public Matrix4f(Matrix4f m1)
Constructs a new matrix with the same values as the Matrix4f parameter.- Parameters:
m1
- the source matrix
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Matrix4f
public Matrix4f(Matrix3f m1, Vector3f t1, float s)
Constructs and initializes a Matrix4f from the rotation matrix, translation, and scale values; the scale is applied only to the rotational components of the matrix (upper 3x3) and not to the translational components of the matrix.- Parameters:
m1
- the rotation matrix representing the rotational componentst1
- the translational components of the matrixs
- the scale value applied to the rotational components
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Matrix4f
public Matrix4f()
Constructs and initializes a Matrix4f to all zeros.
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Method Detail
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toString
public String toString()
Returns a string that contains the values of this Matrix4f.
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setIdentity
public final void setIdentity()
Sets this Matrix4f to identity.
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setElement
public final void setElement(int row, int column, float value)
Sets the specified element of this matrix4f 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
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getElement
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)- Returns:
- the value at the indexed element
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getRow
public final void getRow(int row, Vector4f v)
Copies the matrix values in the specified row into the vector parameter.- Parameters:
row
- the matrix rowv
- the vector into which the matrix row values will be copied
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getRow
public final void getRow(int row, float[] v)
Copies the matrix values in the specified row into the array parameter.- Parameters:
row
- the matrix rowv
- the array into which the matrix row values will be copied
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getColumn
public final void getColumn(int column, Vector4f v)
Copies the matrix values in the specified column into the vector parameter.- Parameters:
column
- the matrix columnv
- the vector into which the matrix row values will be copied
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getColumn
public final void getColumn(int column, float[] v)
Copies the matrix values in the specified column into the array parameter.- Parameters:
column
- the matrix columnv
- the array into which the matrix row values will be copied
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setScale
public final void setScale(float scale)
Sets the scale component of the current matrix by factoring out the current scale (by doing an SVD) from the rotational component and multiplying by the new scale.- Parameters:
scale
- the new scale amount
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get
public final void get(Matrix3d m1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Matrix3d parameter.- Parameters:
m1
- matrix into which the rotational component is placed
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get
public final void get(Matrix3f m1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Matrix3f parameter.- Parameters:
m1
- matrix into which the rotational component is placed
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get
public final float get(Matrix3f m1, Vector3f t1)
Performs an SVD normalization of this matrix to calculate the rotation as a 3x3 matrix, the translation, and the scale. None of the matrix values are modified.- Parameters:
m1
- the normalized matrix representing the rotationt1
- the translation component- Returns:
- the scale component of this transform
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get
public final void get(Quat4f q1)
Performs an SVD normalization of this matrix in order to acquire the normalized rotational component; the values are placed into the Quat4f parameter.- Parameters:
q1
- quaternion into which the rotation component is placed
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get
public final void get(Vector3f trans)
Retrieves the translational components of this matrix.- Parameters:
trans
- the vector that will receive the translational component
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getRotationScale
public final void getRotationScale(Matrix3f m1)
Gets the upper 3x3 values of this matrix and places them into the matrix m1.- Parameters:
m1
- the matrix that will hold the values
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getScale
public final float getScale()
Performs an SVD normalization of this matrix to calculate and return the uniform scale factor. If the matrix has non-uniform scale factors, the largest of the x, y, and z scale factors will be returned. This matrix is not modified.- Returns:
- the scale factor of this matrix
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setRotationScale
public final void setRotationScale(Matrix3f m1)
Replaces the upper 3x3 matrix values of this matrix with the values in the matrix m1.- Parameters:
m1
- the matrix that will be the new upper 3x3
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setRow
public final void setRow(int row, float x, float y, float z, float w)
Sets the specified row of this matrix4f to the four values provided.- Parameters:
row
- the row number to be modified (zero indexed)x
- the first column elementy
- the second column elementz
- the third column elementw
- the fourth column element
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setRow
public final void setRow(int row, Vector4f v)
Sets the specified row of this matrix4f to the Vector provided.- Parameters:
row
- the row number to be modified (zero indexed)v
- the replacement row
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setRow
public final void setRow(int row, float[] v)
Sets the specified row of this matrix4f to the four values provided in the passed array.- Parameters:
row
- the row number to be modified (zero indexed)v
- the replacement row
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setColumn
public final void setColumn(int column, float x, float y, float z, float w)
Sets the specified column of this matrix4f to the four values provided.- Parameters:
column
- the column number to be modified (zero indexed)x
- the first row elementy
- the second row elementz
- the third row elementw
- the fourth row element
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setColumn
public final void setColumn(int column, Vector4f v)
Sets the specified column of this matrix4f to the vector provided.- Parameters:
column
- the column number to be modified (zero indexed)v
- the replacement column
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setColumn
public final void setColumn(int column, float[] v)
Sets the specified column of this matrix4f to the four values provided.- Parameters:
column
- the column number to be modified (zero indexed)v
- the replacement column
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add
public final void add(float scalar)
Adds a scalar to each component of this matrix.- Parameters:
scalar
- the scalar adder
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add
public final void add(float scalar, Matrix4f 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 adderm1
- the original matrix values
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add
public final void add(Matrix4f m1, Matrix4f m2)
Sets the value of this matrix to the matrix sum of matrices m1 and m2.- Parameters:
m1
- the first matrixm2
- the second matrix
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add
public final void add(Matrix4f m1)
Sets the value of this matrix to the sum of itself and matrix m1.- Parameters:
m1
- the other matrix
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sub
public final void sub(Matrix4f m1, Matrix4f m2)
Performs an element-by-element subtraction of matrix m2 from matrix m1 and places the result into matrix this (this = m2 - m1).- Parameters:
m1
- the first matrixm2
- the second matrix
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sub
public final void sub(Matrix4f m1)
Sets this matrix to the matrix difference of itself and matrix m1 (this = this - m1).- Parameters:
m1
- the other matrix
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transpose
public final void transpose()
Sets the value of this matrix to its transpose in place.
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transpose
public final void transpose(Matrix4f m1)
Sets the value of this matrix to the transpose of the argument matrix.- Parameters:
m1
- the matrix to be transposed
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set
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
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set
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
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set
public final void set(Quat4d q1)
Sets the value of this matrix to the matrix conversion of the double precision quaternion argument.- Parameters:
q1
- the quaternion to be converted
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set
public final void set(AxisAngle4d a1)
Sets the value of this matrix to the matrix conversion of the double precision axis and angle argument.- Parameters:
a1
- the axis and angle to be converted
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set
public final void set(Quat4d q1, Vector3d t1, double s)
Sets the value of this matrix from the rotation expressed by the quaternion q1, the translation t1, and the scale s.- Parameters:
q1
- the rotation expressed as a quaterniont1
- the translations
- the scale value
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set
public final void set(Quat4f q1, Vector3f t1, float s)
Sets the value of this matrix from the rotation expressed by the quaternion q1, the translation t1, and the scale s.- Parameters:
q1
- the rotation expressed as a quaterniont1
- the translations
- the scale value
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set
public final void set(Matrix4d m1)
Sets the value of this matrix to the float value of the passed matrix4d m1.- Parameters:
m1
- the matrix4d to be converted to float
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set
public final void set(Matrix4f m1)
Sets the value of this matrix to a copy of the passed matrix m1.- Parameters:
m1
- the matrix to be copied
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invert
public final void invert(Matrix4f m1)
Sets the value of this matrix to the matrix inverse of the passed (user declared) matrix m1.- Parameters:
m1
- the matrix to be inverted
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invert
public final void invert()
Inverts this matrix in place.
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determinant
public final float determinant()
Computes the determinate of this matrix.- Returns:
- the determinate of the matrix
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set
public final void set(Matrix3f m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the single precision Matrix3f argument; the other elements of this matrix are initialized as if this were an identity matrix (i.e., affine matrix with no translational component).- Parameters:
m1
- the single-precision 3x3 matrix
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set
public final void set(Matrix3d m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the double precision Matrix3d argument; the other elements of this matrix are initialized as if this were an identity matrix (i.e., affine matrix with no translational component).- Parameters:
m1
- the double-precision 3x3 matrix
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set
public final void set(float scale)
Sets the value of this matrix to a scale matrix with the the passed scale amount.- Parameters:
scale
- the scale factor for the matrix
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set
public final void set(float[] m)
Sets the values in this Matrix4f equal to the row-major array parameter (ie, the first four elements of the array will be copied into the first row of this matrix, etc.).- Parameters:
m
- the single precision array of length 16
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set
public final void set(Vector3f v1)
Sets the value of this matrix to a translate matrix with the passed translation value.- Parameters:
v1
- the translation amount
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set
public final void set(float scale, Vector3f t1)
Sets the value of this transform to a scale and translation matrix; the scale is not applied to the translation and all of the matrix values are modified.- Parameters:
scale
- the scale factor for the matrixt1
- the translation amount
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set
public final void set(Vector3f t1, float scale)
Sets the value of this transform to a scale and translation matrix; the translation is scaled by the scale factor and all of the matrix values are modified.- Parameters:
t1
- the translation amountscale
- the scale factor for the matrix
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set
public final void set(Matrix3f m1, Vector3f t1, float scale)
Sets the value of this matrix from the rotation expressed by the rotation matrix m1, the translation t1, and the scale factor. The translation is not modified by the scale.- Parameters:
m1
- the rotation componentt1
- the translation componentscale
- the scale component
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set
public final void set(Matrix3d m1, Vector3d t1, double scale)
Sets the value of this matrix from the rotation expressed by the rotation matrix m1, the translation t1, and the scale factor. The translation is not modified by the scale.- Parameters:
m1
- the rotation componentt1
- the translation componentscale
- the scale factor
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setTranslation
public final void setTranslation(Vector3f trans)
Modifies the translational components of this matrix to the values of the Vector3f argument; the other values of this matrix are not modified.- Parameters:
trans
- the translational component
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rotX
public final void rotX(float angle)
Sets the value of this matrix to a counter clockwise rotation about the x axis.- Parameters:
angle
- the angle to rotate about the X axis in radians
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rotY
public final void rotY(float angle)
Sets the value of this matrix to a counter clockwise rotation about the y axis.- Parameters:
angle
- the angle to rotate about the Y axis in radians
-
rotZ
public final void rotZ(float angle)
Sets the value of this matrix to a counter clockwise rotation about the z axis.- Parameters:
angle
- the angle to rotate about the Z axis in radians
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mul
public final void mul(float scalar)
Multiplies each element of this matrix by a scalar.- Parameters:
scalar
- the scalar multiplier.
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mul
public final void mul(float scalar, Matrix4f 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.
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mul
public final void mul(Matrix4f m1)
Sets the value of this matrix to the result of multiplying itself with matrix m1.- Parameters:
m1
- the other matrix
-
mul
public final void mul(Matrix4f m1, Matrix4f m2)
Sets the value of this matrix to the result of multiplying the two argument matrices together.- Parameters:
m1
- the first matrixm2
- the second matrix
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mulTransposeBoth
public final void mulTransposeBoth(Matrix4f m1, Matrix4f 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 multiplicationm2
- the matrix on the right hand side of the multiplication
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mulTransposeRight
public final void mulTransposeRight(Matrix4f m1, Matrix4f 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 multiplicationm2
- the matrix on the right hand side of the multiplication
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mulTransposeLeft
public final void mulTransposeLeft(Matrix4f m1, Matrix4f 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 multiplicationm2
- the matrix on the right hand side of the multiplication
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equals
public boolean equals(Matrix4f m1)
Returns true if all of the data members of Matrix4f m1 are equal to the corresponding data members in this Matrix4f.- Parameters:
m1
- the matrix with which the comparison is made.- Returns:
- true or false
-
equals
public boolean equals(Object t1)
Returns true if the Object t1 is of type Matrix4f and all of the data members of t1 are equal to the corresponding data members in this Matrix4f.
-
epsilonEquals
public boolean epsilonEquals(Matrix4f 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=0,1,2,3 ; j=0,1,2,3 ; abs(this.m(i,j) - m1.m(i,j)]- Parameters:
m1
- the matrix to be compared to this matrixepsilon
- the threshold value
-
hashCode
public int hashCode()
Returns a hash code value based on the data values in this object. Two different Matrix4f objects with identical data values (i.e., Matrix4f.equals returns true) will return the same hash code value. Two objects with different data members may return the same hash value, although this is not likely.
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transform
public final void transform(Tuple4f vec, Tuple4f vecOut)
Transform the vector vec using this Matrix4f and place the result into vecOut.- Parameters:
vec
- the single precision vector to be transformedvecOut
- the vector into which the transformed values are placed
-
transform
public final void transform(Tuple4f vec)
Transform the vector vec using this Transform and place the result back into vec.- Parameters:
vec
- the single precision vector to be transformed
-
transform
public final void transform(Point3f point, Point3f pointOut)
Transforms the point parameter with this Matrix4f and places the result into pointOut. The fourth element of the point input paramter is assumed to be one.- Parameters:
point
- the input point to be transformed.pointOut
- the transformed point
-
transform
public final void transform(Point3f point)
Transforms the point parameter with this Matrix4f and places the result back into point. The fourth element of the point input paramter is assumed to be one.- Parameters:
point
- the input point to be transformed.
-
transform
public final void transform(Vector3f normal, Vector3f normalOut)
Transforms the normal parameter by this Matrix4f and places the value into normalOut. The fourth element of the normal is assumed to be zero.- Parameters:
normal
- the input normal to be transformed.normalOut
- the transformed normal
-
transform
public final void transform(Vector3f normal)
Transforms the normal parameter by this transform and places the value back into normal. The fourth element of the normal is assumed to be zero.- Parameters:
normal
- the input normal to be transformed.
-
setRotation
public final void setRotation(Matrix3d m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the double precision Matrix3d argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components.- Parameters:
m1
- double precision 3x3 matrix
-
setRotation
public final void setRotation(Matrix3f m1)
Sets the rotational component (upper 3x3) of this matrix to the matrix values in the single precision Matrix3f argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the passed rotation components, and then the scale is reapplied to the rotational components.- Parameters:
m1
- single precision 3x3 matrix
-
setRotation
public final void setRotation(Quat4f q1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the quaternion argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the quaternion, and then the scale is reapplied to the rotational components.- Parameters:
q1
- the quaternion that specifies the rotation
-
setRotation
public final void setRotation(Quat4d q1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the quaternion argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the quaternion, and then the scale is reapplied to the rotational components.- Parameters:
q1
- the quaternion that specifies the rotation
-
setRotation
public final void setRotation(AxisAngle4f a1)
Sets the rotational component (upper 3x3) of this matrix to the matrix equivalent values of the axis-angle argument; the other elements of this matrix are unchanged; a singular value decomposition is performed on this object's upper 3x3 matrix to factor out the scale, then this object's upper 3x3 matrix components are replaced by the matrix equivalent of the axis-angle, and then the scale is reapplied to the rotational components.- Parameters:
a1
- the axis-angle to be converted (x, y, z, angle)
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setZero
public final void setZero()
Sets this matrix to all zeros.
-
negate
public final void negate()
Negates the value of this matrix: this = -this.
-
negate
public final void negate(Matrix4f m1)
Sets the value of this matrix equal to the negation of of the Matrix4f parameter.- Parameters:
m1
- the source matrix
-
clone
public Object clone()
Creates a new object of the same class as this object.- Overrides:
clone
in classObject
- Returns:
- a clone of this instance.
- Throws:
OutOfMemoryError
- if there is not enough memory.- Since:
- vecmath 1.3
- See Also:
Cloneable
-
getM00
public final float getM00()
Get the first matrix element in the first row.- Returns:
- Returns the m00.
- Since:
- vecmath 1.5
-
setM00
public final void setM00(float m00)
Set the first matrix element in the first row.- Parameters:
m00
- The m00 to set.- Since:
- vecmath 1.5
-
getM01
public final float getM01()
Get the second matrix element in the first row.- Returns:
- Returns the m01.
- Since:
- vecmath 1.5
-
setM01
public final void setM01(float m01)
Set the second matrix element in the first row.- Parameters:
m01
- The m01 to set.- Since:
- vecmath 1.5
-
getM02
public final float getM02()
Get the third matrix element in the first row.- Returns:
- Returns the m02.
- Since:
- vecmath 1.5
-
setM02
public final void setM02(float m02)
Set the third matrix element in the first row.- Parameters:
m02
- The m02 to set.- Since:
- vecmath 1.5
-
getM10
public final float getM10()
Get first matrix element in the second row.- Returns:
- Returns the m10.
- Since:
- vecmath 1.5
-
setM10
public final void setM10(float m10)
Set first matrix element in the second row.- Parameters:
m10
- The m10 to set.- Since:
- vecmath 1.5
-
getM11
public final float getM11()
Get second matrix element in the second row.- Returns:
- Returns the m11.
- Since:
- vecmath 1.5
-
setM11
public final void setM11(float m11)
Set the second matrix element in the second row.- Parameters:
m11
- The m11 to set.- Since:
- vecmath 1.5
-
getM12
public final float getM12()
Get the third matrix element in the second row.- Returns:
- Returns the m12.
- Since:
- vecmath 1.5
-
setM12
public final void setM12(float m12)
Set the third matrix element in the second row.- Parameters:
m12
- The m12 to set.- Since:
- vecmath 1.5
-
getM20
public final float getM20()
Get the first matrix element in the third row.- Returns:
- Returns the m20.
- Since:
- vecmath 1.5
-
setM20
public final void setM20(float m20)
Set the first matrix element in the third row.- Parameters:
m20
- The m20 to set.- Since:
- vecmath 1.5
-
getM21
public final float getM21()
Get the second matrix element in the third row.- Returns:
- Returns the m21.
- Since:
- vecmath 1.5
-
setM21
public final void setM21(float m21)
Set the second matrix element in the third row.- Parameters:
m21
- The m21 to set.- Since:
- vecmath 1.5
-
getM22
public final float getM22()
Get the third matrix element in the third row.- Returns:
- Returns the m22.
- Since:
- vecmath 1.5
-
setM22
public final void setM22(float m22)
Set the third matrix element in the third row.- Parameters:
m22
- The m22 to set.- Since:
- vecmath 1.5
-
getM03
public final float getM03()
Get the fourth element of the first row.- Returns:
- Returns the m03.
- Since:
- vecmath 1.5
-
setM03
public final void setM03(float m03)
Set the fourth element of the first row.- Parameters:
m03
- The m03 to set.- Since:
- vecmath 1.5
-
getM13
public final float getM13()
Get the fourth element of the second row.- Returns:
- Returns the m13.
- Since:
- vecmath 1.5
-
setM13
public final void setM13(float m13)
Set the fourth element of the second row.- Parameters:
m13
- The m13 to set.- Since:
- vecmath 1.5
-
getM23
public final float getM23()
Get the fourth element of the third row.- Returns:
- Returns the m23.
- Since:
- vecmath 1.5
-
setM23
public final void setM23(float m23)
Set the fourth element of the third row.- Parameters:
m23
- The m23 to set.- Since:
- vecmath 1.5
-
getM30
public final float getM30()
Get the first element of the fourth row.- Returns:
- Returns the m30.
- Since:
- vecmath 1.5
-
setM30
public final void setM30(float m30)
Set the first element of the fourth row.- Parameters:
m30
- The m30 to set.- Since:
- vecmath 1.5
-
getM31
public final float getM31()
Get the second element of the fourth row.- Returns:
- Returns the m31.
- Since:
- vecmath 1.5
-
setM31
public final void setM31(float m31)
Set the second element of the fourth row.- Parameters:
m31
- The m31 to set.- Since:
- vecmath 1.5
-
getM32
public final float getM32()
Get the third element of the fourth row.- Returns:
- Returns the m32.
- Since:
- vecmath 1.5
-
setM32
public final void setM32(float m32)
Set the third element of the fourth row.- Parameters:
m32
- The m32 to set.- Since:
- vecmath 1.5
-
getM33
public final float getM33()
Get the fourth element of the fourth row.- Returns:
- Returns the m33.
- Since:
- vecmath 1.5
-
setM33
public final void setM33(float m33)
Set the fourth element of the fourth row.- Parameters:
m33
- The m33 to set.- Since:
- vecmath 1.5
-
-