Matrix3f (jMonkeyEngine3)

java.lang.Object
- com.jme3.math.Matrix3f

All Implemented Interfaces:

Savable, java.io.Serializable, java.lang.Cloneable
```
public final class Matrix3f
extends java.lang.Object
implements Savable, java.lang.Cloneable, java.io.Serializable
```
A 3x3 matrix composed of 9 single-precision elements, used to represent linear transformations of 3-D coordinates, such as rotations, reflections, and scaling.
Element numbering is (row, column), so m01 is the element in row 0, column 1.
For pure rotations, the Quaternion class provides a more efficient representation.
With one exception, the methods with names ending in "Local" modify the current instance. They are used to avoid creating garbage.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static Matrix3f`	`IDENTITY` Shared instance of the identity matrix (diagonals = 1, other elements = 0).
`protected float`	`m00` The element in row 0, column 0.
`protected float`	`m01` The element in row 0, column 1.
`protected float`	`m02` The element in row 0, column 2.
`protected float`	`m10` The element in row 1, column 0.
`protected float`	`m11` The element in row 1, column 1.
`protected float`	`m12` The element in row 1, column 2.
`protected float`	`m20` The element in row 2, column 0.
`protected float`	`m21` The element in row 2, column 1.
`protected float`	`m22` The element in row 2, column 2.
`static Matrix3f`	`ZERO` Shared instance of the all-zero matrix.

Constructor Summary

Constructors
Constructor and Description
`Matrix3f()` Instantiates an identity matrix (diagonals = 1, other elements = 0).
`Matrix3f(float m00, float m01, float m02, float m10, float m11, float m12, float m20, float m21, float m22)` Instantiates a matrix with specified elements.
`Matrix3f(Matrix3f mat)` Instantiates a copy of the matrix argument.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`absoluteLocal()` Replaces all 9 elements with their absolute values.
`Matrix3f`	`adjoint()` Returns the adjoint as a new matrix.
`Matrix3f`	`adjoint(Matrix3f store)` Returns the adjoint in the specified storage.
`Matrix3f`	`clone()` Creates a copy.
`float`	`determinant()` Returns the determinant.
`boolean`	`equals(java.lang.Object o)` Tests for exact equality with the argument, distinguishing -0 from 0.
`void`	`fillFloatArray(float[] f, boolean columnMajor)` Copies the matrix to the 1st 9 elements of the specified array.
`java.nio.FloatBuffer`	`fillFloatBuffer(java.nio.FloatBuffer fb, boolean columnMajor)` Copies the matrix to the specified FloatBuffer, starting at its current position.
`void`	`fromAngleAxis(float angle, Vector3f axis)` Sets all 9 elements to form a pure rotation matrix with the specified rotation angle and axis of rotation.
`void`	`fromAngleNormalAxis(float angle, Vector3f axis)` Sets all 9 elements to form a rotation matrix with the specified rotation angle and normalized axis of rotation.
`void`	`fromAxes(Vector3f uAxis, Vector3f vAxis, Vector3f wAxis)` Configures from the specified column vectors.
`void`	`fromStartEndVectors(Vector3f start, Vector3f end)` Configures a rotation matrix that rotates the specified start direction to the specified end direction.
`void`	`get(float[] data, boolean rowMajor)` Copies the matrix to the specified array.
`float`	`get(int i, int j)` Returns the element at the specified position.
`Vector3f`	`getColumn(int i)` Returns the specified column.
`Vector3f`	`getColumn(int i, Vector3f store)` Returns the specified column.
`Vector3f`	`getRow(int i)` Returns the specified row.
`Vector3f`	`getRow(int i, Vector3f store)` Returns the specified row.
`int`	`hashCode()` Returns a hash code.
`Matrix3f`	`invert()` Returns the multiplicative inverse as a new matrix.
`Matrix3f`	`invert(Matrix3f store)` Returns the multiplicative inverse in the specified storage.
`Matrix3f`	`invertLocal()` Inverts the matrix and returns the (modified) current instance.
`boolean`	`isIdentity()` Tests for exact identity.
`void`	`loadIdentity()` Configures as an identity matrix (diagonals = 1, other elements = 0).
`Matrix3f`	`mult(Matrix3f mat)` Multiplies with the argument matrix and returns the product as a new instance.
`Matrix3f`	`mult(Matrix3f mat, Matrix3f product)` Multiplies with the specified matrix and returns the product in a 3rd matrix.
`Vector3f`	`mult(Vector3f vec)` Applies the linear transformation to the vector argument and returns the result as a new vector.
`Vector3f`	`mult(Vector3f vec, Vector3f product)` Applies the linear transformation to specified vector and stores the result in another vector.
`Matrix3f`	`multLocal(float scale)` Multiplies by the scalar argument and returns the (modified) current instance.
`Matrix3f`	`multLocal(Matrix3f mat)` Multiplies by the matrix argument and returns the (modified) current instance.
`Vector3f`	`multLocal(Vector3f vec)` Applies the linear transformation to the vector argument and returns the (modified) argument.
`Matrix3f`	`normalize(Matrix3f store)` Normalizes the matrix and returns the result in the argument.
`Matrix3f`	`normalizeLocal()` Normalizes the matrix and returns the (modified) current instance.
`void`	`read(JmeImporter importer)` De-serializes from the specified importer, for example when loading from a J3O file.
`void`	`scale(Vector3f scale)` Scales each column by the corresponding element of the argument.
`Matrix3f`	`set(float[] matrix)` Copies all 9 elements from the array argument, in row-major order.
`Matrix3f`	`set(float[][] matrix)` Copies all 9 elements from the specified 2-dimensional array.
`Matrix3f`	`set(float[] matrix, boolean rowMajor)` Copies all 9 elements from the specified array.
`Matrix3f`	`set(int i, int j, float value)` Sets the specified element.
`Matrix3f`	`set(Matrix3f matrix)` Copies the matrix argument.
`Matrix3f`	`set(Quaternion quaternion)` Configures as a rotation matrix equivalent to the argument.
`Matrix3f`	`setColumn(int i, Vector3f column)` Sets the specified column.
`Matrix3f`	`setRow(int i, Vector3f row)` Sets the specified row.
`java.nio.FloatBuffer`	`toFloatBuffer()` Copies the matrix to a new FloatBuffer.
`java.lang.String`	`toString()` Returns a string representation of the matrix, which is unaffected.
`Matrix3f`	`transpose()` Transposes the matrix and returns the (modified) current instance.
`Matrix3f`	`transposeLocal()` Transposes the matrix and returns the (modified) current instance.
`Matrix3f`	`transposeNew()` Returns the transpose as a new instance.
`void`	`write(JmeExporter e)` Serializes to the specified exporter, for example when saving to a J3O file.
`Matrix3f`	`zero()` Sets all elements to zero.

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - m00
```
protected float m00
```
    The element in row 0, column 0.
  - m01
```
protected float m01
```
    The element in row 0, column 1.
  - m02
```
protected float m02
```
    The element in row 0, column 2.
  - m10
```
protected float m10
```
    The element in row 1, column 0.
  - m11
```
protected float m11
```
    The element in row 1, column 1.
  - m12
```
protected float m12
```
    The element in row 1, column 2.
  - m20
```
protected float m20
```
    The element in row 2, column 0.
  - m21
```
protected float m21
```
    The element in row 2, column 1.
  - m22
```
protected float m22
```
    The element in row 2, column 2.
  - ZERO
```
public static final Matrix3f ZERO
```
    Shared instance of the all-zero matrix. Do not modify!
  - IDENTITY
```
public static final Matrix3f IDENTITY
```
    Shared instance of the identity matrix (diagonals = 1, other elements = 0). Do not modify!
- Constructor Detail
  - Matrix3f
```
public Matrix3f()
```
    Instantiates an identity matrix (diagonals = 1, other elements = 0).
  - Matrix3f
```
public Matrix3f(float m00,
                float m01,
                float m02,
                float m10,
                float m11,
                float m12,
                float m20,
                float m21,
                float m22)
```
    Instantiates a matrix with specified elements.
    
    Parameters:
    
    m00 - the desired value for row 0, column 0
    
    m01 - the desired value for row 0, column 1
    
    m02 - the desired value for row 0, column 2
    
    m10 - the desired value for row 1, column 0
    
    m11 - the desired value for row 1, column 1
    
    m12 - the desired value for row 1, column 2
    
    m20 - the desired value for row 2, column 0
    
    m21 - the desired value for row 2, column 1
    
    m22 - the desired value for row 2, column 2
  - Matrix3f
```
public Matrix3f(Matrix3f mat)
```
    Instantiates a copy of the matrix argument. If the argument is null, an identity matrix is produced.
    
    Parameters:
    
    mat - the matrix to copy (unaffected) or null for identity
- Method Detail
  - absoluteLocal
```
public void absoluteLocal()
```
    Replaces all 9 elements with their absolute values.
  - set
```
public Matrix3f set(Matrix3f matrix)
```
    Copies the matrix argument. If the argument is null, the current instance is set to identity (diagonals = 1, other elements = 0).
    
    Parameters:
    
    matrix - the matrix to copy (unaffected) or null for identity
    
    Returns:
    
    the (modified) current instance (for chaining)
  - get
```
public float get(int i,
                 int j)
```
    Returns the element at the specified position. The matrix is unaffected.
    
    Parameters:
    
    i - the row index (0, 1, or 2)
    
    j - the column index (0, 1, or 2)
    
    Returns:
    
    the value of the element at (i, j)
    
    Throws:
    
    java.lang.IllegalArgumentException - if either index isn't 0, 1, or 2
  - get
```
public void get(float[] data,
                boolean rowMajor)
```
    Copies the matrix to the specified array. The matrix is unaffected.
    If the array has 16 elements, then the matrix is treated as if it contained the 1st 3 rows and 1st 3 columns of a 4x4 matrix.
    
    Parameters:
    
    data - storage for the elements (not null, length=9 or 16)
    
    rowMajor - true to store the elements in row-major order (m00, m01, ...) or false to store them in column-major order (m00, m10, ...)
    
    Throws:
    
    java.lang.IndexOutOfBoundsException - if data doesn't have 9 or 16 elements
    
    See Also:
    
    fillFloatArray(float[], boolean)
  - normalize
```
public Matrix3f normalize(Matrix3f store)
```
    Normalizes the matrix and returns the result in the argument. The current instance is unaffected, unless it's store.
    
    Parameters:
    
    store - storage for the result, or null for a new Matrix3f
    
    Returns:
    
    either store or a new Matrix3f
  - normalizeLocal
```
public Matrix3f normalizeLocal()
```
    Normalizes the matrix and returns the (modified) current instance.
    
    Returns:
    
    the (modified) current instance (for chaining)
  - getColumn
```
public Vector3f getColumn(int i)
```
    Returns the specified column. The matrix is unaffected.
    If the matrix is a pure rotation, each column contains one of the basis vectors.
    
    Parameters:
    
    i - the column index (0, 1, or 2)
    
    Returns:
    
    a new Vector3f
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
    
    See Also:
    
    Quaternion.getRotationColumn(int)
  - getColumn
```
public Vector3f getColumn(int i,
                          Vector3f store)
```
    Returns the specified column. The matrix is unaffected.
    If the matrix is a pure rotation, each column contains one of the basis vectors.
    
    Parameters:
    
    i - the column index (0, 1, or 2)
    
    store - storage for the result, or null for a new Vector3f
    
    Returns:
    
    either store or a new Vector3f
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
    
    See Also:
    
    Quaternion.getRotationColumn(int, com.jme3.math.Vector3f)
  - getRow
```
public Vector3f getRow(int i)
```
    Returns the specified row. The matrix is unaffected.
    
    Parameters:
    
    i - the row index (0, 1, or 2)
    
    Returns:
    
    a new Vector3f
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
  - getRow
```
public Vector3f getRow(int i,
                       Vector3f store)
```
    Returns the specified row. The matrix is unaffected.
    
    Parameters:
    
    i - the row index (0, 1, or 2)
    
    store - storage for the result, or null for a new Vector3f
    
    Returns:
    
    either store or a new Vector3f
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
  - toFloatBuffer
```
public java.nio.FloatBuffer toFloatBuffer()
```
    Copies the matrix to a new FloatBuffer. The matrix is unaffected.
    
    Returns:
    
    a new, rewound FloatBuffer containing all 9 elements in row-major order (m00, m01, ...)
  - fillFloatBuffer
```
public java.nio.FloatBuffer fillFloatBuffer(java.nio.FloatBuffer fb,
                                            boolean columnMajor)
```
    Copies the matrix to the specified FloatBuffer, starting at its current position. The matrix is unaffected.
    
    Parameters:
    
    fb - storage for the elements (not null, must have space to put 9 more floats)
    
    columnMajor - true to store the elements in column-major order (m00, m10, ...) or false to store them in row-major order (m00, m01, ...)
    
    Returns:
    
    fb, its position advanced by 9
  - fillFloatArray
```
public void fillFloatArray(float[] f,
                           boolean columnMajor)
```
    Copies the matrix to the 1st 9 elements of the specified array. The matrix is unaffected.
    
    Parameters:
    
    f - storage for the elements (not null, length≥9)
    
    columnMajor - true to store the elements in column-major order (m00, m10, ...) or false to store them in row-major order (m00, m01, ...)
    
    See Also:
    
    get(float[], boolean)
  - setColumn
```
public Matrix3f setColumn(int i,
                          Vector3f column)
```
    Sets the specified column.
    
    Parameters:
    
    i - which column to set (0, 1, or 2)
    
    column - the desired element values (unaffected) or null for none
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
  - setRow
```
public Matrix3f setRow(int i,
                       Vector3f row)
```
    Sets the specified row.
    
    Parameters:
    
    i - which row to set (0, 1, or 2)
    
    row - the desired element values (unaffected) or null for none
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if i isn't 0, 1, or 2
  - set
```
public Matrix3f set(int i,
                    int j,
                    float value)
```
    Sets the specified element.
    
    Parameters:
    
    i - the row index (0, 1, or 2)
    
    j - the column index (0, 1, or 2)
    
    value - desired value for the element at (i, j)
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if either index isn't 0, 1, or 2
  - set
```
public Matrix3f set(float[][] matrix)
```
    Copies all 9 elements from the specified 2-dimensional array.
    
    Parameters:
    
    matrix - the input array (not null, length=3, the first element having length=3, the other elements having length≥3, unaffected)
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if the array is the wrong size
  - fromAxes
```
public void fromAxes(Vector3f uAxis,
                     Vector3f vAxis,
                     Vector3f wAxis)
```
    Configures from the specified column vectors. If the vectors form an orthonormal basis, the result will be a pure rotation matrix.
    
    Parameters:
    
    uAxis - the desired value for column 0 (not null, unaffected)
    
    vAxis - the desired value for column 1 (not null, unaffected)
    
    wAxis - the desired value for column 2 (not null, unaffected)
    
    See Also:
    
    Quaternion.fromAxes(com.jme3.math.Vector3f[])
  - set
```
public Matrix3f set(float[] matrix)
```
    Copies all 9 elements from the array argument, in row-major order.
    
    Parameters:
    
    matrix - the input array (not null, length=9, unaffected)
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if the array has length != 9
  - set
```
public Matrix3f set(float[] matrix,
                    boolean rowMajor)
```
    Copies all 9 elements from the specified array.
    
    Parameters:
    
    matrix - the input array (not null, length=9, unaffected)
    
    rowMajor - true to read the elements in row-major order (m00, m01, ...) or false to read them in column-major order (m00, m10, ...)
    
    Returns:
    
    the (modified) current instance (for chaining)
    
    Throws:
    
    java.lang.IllegalArgumentException - if the array has length != 9
  - set
```
public Matrix3f set(Quaternion quaternion)
```
    Configures as a rotation matrix equivalent to the argument.
    
    Parameters:
    
    quaternion - the input quaternion (not null, unaffected)
    
    Returns:
    
    the (modified) current instance (for chaining)
  - loadIdentity
```
public void loadIdentity()
```
    Configures as an identity matrix (diagonals = 1, other elements = 0).
  - isIdentity
```
public boolean isIdentity()
```
    Tests for exact identity. The matrix is unaffected.
    
    Returns:
    
    true if equal to IDENTITY, otherwise false
  - fromAngleAxis
```
public void fromAngleAxis(float angle,
                          Vector3f axis)
```
    Sets all 9 elements to form a pure rotation matrix with the specified rotation angle and axis of rotation. This method creates garbage, so use fromAngleNormalAxis(float, com.jme3.math.Vector3f) if the axis is known to be normalized.
    
    Parameters:
    
    angle - the desired rotation angle (in radians)
    
    axis - the desired axis of rotation (not null, unaffected)
  - fromAngleNormalAxis
```
public void fromAngleNormalAxis(float angle,
                                Vector3f axis)
```
    Sets all 9 elements to form a rotation matrix with the specified rotation angle and normalized axis of rotation. If the axis might not be normalized, use fromAngleAxis(float, com.jme3.math.Vector3f) instead.
    
    Parameters:
    
    angle - the desired rotation angle (in radians)
    
    axis - the desired axis of rotation (not null, length=1, unaffected)
  - mult
```
public Matrix3f mult(Matrix3f mat)
```
    Multiplies with the argument matrix and returns the product as a new instance. The current instance is unaffected.
    Note that matrix multiplication is noncommutative, so generally q * p != p * q.
    
    Parameters:
    
    mat - the right factor (not null, unaffected)
    
    Returns:
    
    this times mat (a new Matrix3f)
  - mult
```
public Matrix3f mult(Matrix3f mat,
                     Matrix3f product)
```
    Multiplies with the specified matrix and returns the product in a 3rd matrix. The current instance is unaffected unless it's product.
    Note that matrix multiplication is noncommutative, so generally q * p != p * q.
    It is safe for mat and product to be the same object.
    
    Parameters:
    
    mat - the right factor (not null, unaffected unless it's product)
    
    product - storage for the product, or null for a new Matrix3f
    
    Returns:
    
    this times mat (either product or a new Matrix3f)
  - mult
```
public Vector3f mult(Vector3f vec)
```
    Applies the linear transformation to the vector argument and returns the result as a new vector. The matrix is unaffected.
    This can also be described as multiplying the matrix by a column vector.
    
    Parameters:
    
    vec - the coordinates to transform (not null, unaffected)
    
    Returns:
    
    a new Vector3f
  - mult
```
public Vector3f mult(Vector3f vec,
                     Vector3f product)
```
    Applies the linear transformation to specified vector and stores the result in another vector. The matrix is unaffected.
    This can also be described as multiplying the matrix by a column vector.
    It is safe for vec and product to be the same object.
    
    Parameters:
    
    vec - the coordinates to transform (not null, unaffected unless it's product)
    
    product - storage for the result, or null for a new Vector3f
    
    Returns:
    
    either product or a new Vector3f
  - multLocal
```
public Matrix3f multLocal(float scale)
```
    Multiplies by the scalar argument and returns the (modified) current instance.
    
    Parameters:
    
    scale - the scaling factor
    
    Returns:
    
    the (modified) current instance (for chaining)
  - multLocal
```
public Vector3f multLocal(Vector3f vec)
```
    Applies the linear transformation to the vector argument and returns the (modified) argument. If the argument is null, null is returned.
    Despite the name, the current instance is unaffected.
    
    Parameters:
    
    vec - the vector to transform (modified if not null)
    
    Returns:
    
    vec or null
  - multLocal
```
public Matrix3f multLocal(Matrix3f mat)
```
    Multiplies by the matrix argument and returns the (modified) current instance.
    Note that matrix multiplication is noncommutative, so generally q * p != p * q.
    
    Parameters:
    
    mat - the right factor (not null, unaffected unless it's this)
    
    Returns:
    
    the (modified) current instance
  - transposeLocal
```
public Matrix3f transposeLocal()
```
    Transposes the matrix and returns the (modified) current instance.
    
    Returns:
    
    the (modified) current instance
  - invert
```
public Matrix3f invert()
```
    Returns the multiplicative inverse as a new matrix. If the current instance is singular, an all-zero matrix is returned. In either case, the current instance is unaffected.
    
    Returns:
    
    a new Matrix3f
  - invert
```
public Matrix3f invert(Matrix3f store)
```
    Returns the multiplicative inverse in the specified storage. If the current instance is singular, an all-zero matrix is returned. In either case, the current instance is unaffected.
    If this and store are the same object, the result is undefined. Use invertLocal() instead.
    
    Parameters:
    
    store - storage for the result, or null for a new Matrix3f
    
    Returns:
    
    either store or a new Matrix3f
  - invertLocal
```
public Matrix3f invertLocal()
```
    Inverts the matrix and returns the (modified) current instance. If the current instance is singular, all elements will be set to zero.
    
    Returns:
    
    the (modified) current instance (for chaining)
  - adjoint
```
public Matrix3f adjoint()
```
    Returns the adjoint as a new matrix. The current instance is unaffected.
    
    Returns:
    
    a new Matrix3f
  - adjoint
```
public Matrix3f adjoint(Matrix3f store)
```
    Returns the adjoint in the specified storage. The current instance is unaffected.
    If this and store are the same object, the result is undefined.
    
    Parameters:
    
    store - storage for the result, or null for a new Matrix3f
    
    Returns:
    
    either store or a new Matrix3f
  - determinant
```
public float determinant()
```
    Returns the determinant. The matrix is unaffected.
    
    Returns:
    
    the determinant
  - zero
```
public Matrix3f zero()
```
    Sets all elements to zero.
    
    Returns:
    
    the (modified) current instance (for chaining)
  - transpose
```
public Matrix3f transpose()
```
    Transposes the matrix and returns the (modified) current instance.
    This method is inconsistent with JME naming conventions, but has been preserved for backwards compatibility. To preserve the current instance, transposeNew().
    TODO deprecate in favor of transposeLocal()
    
    Returns:
    
    the (modified) current instance (for chaining)
  - transposeNew
```
public Matrix3f transposeNew()
```
    Returns the transpose as a new instance. The current instance is unaffected.
    
    Returns:
    
    a new Matrix3f
  - toString
```
public java.lang.String toString()
```
    Returns a string representation of the matrix, which is unaffected. For example, an identity matrix would be represented by:
```
 Matrix3f
 [
  1.0  0.0  0.0
  0.0  1.0  0.0
  0.0  0.0  1.0
 ]
 
```
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    the string representation
  - hashCode
```
public int hashCode()
```
    Returns a hash code. If two matrices are logically equivalent, they will return the same hash code. The current instance is unaffected.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    the hash-code value
    
    See Also:
    
    Object.hashCode()
  - equals
```
public boolean equals(java.lang.Object o)
```
    Tests for exact equality with the argument, distinguishing -0 from 0. The current instance is unaffected.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    o - the object to compare (may be null, unaffected)
    
    Returns:
    
    true if equal, otherwise false
  - write
```
public void write(JmeExporter e)
           throws java.io.IOException
```
    Serializes to the specified exporter, for example when saving to a J3O file. The current instance is unaffected.
    
    Specified by:
    
    write in interface Savable
    
    Parameters:
    
    e - the exporter to use (not null)
    
    Throws:
    
    java.io.IOException - from the exporter
  - read
```
public void read(JmeImporter importer)
          throws java.io.IOException
```
    De-serializes from the specified importer, for example when loading from a J3O file.
    
    Specified by:
    
    read in interface Savable
    
    Parameters:
    
    importer - the importer to use (not null)
    
    Throws:
    
    java.io.IOException - from the importer
  - fromStartEndVectors
```
public void fromStartEndVectors(Vector3f start,
                                Vector3f end)
```
    Configures a rotation matrix that rotates the specified start direction to the specified end direction.
    See Tomas Möller, John F. Hughes "Efficiently Building a Matrix to Rotate One Vector to Another" Journal of Graphics Tools, 4(4):1-4, 1999.
    
    Parameters:
    
    start - the start direction (not null, length=1, unaffected)
    
    end - the end direction (not null, length=1, unaffected)
  - scale
```
public void scale(Vector3f scale)
```
    Scales each column by the corresponding element of the argument.
    
    Parameters:
    
    scale - the scale factors: X scales column 0, Y scales column 1, Z scales column 2 (not null, unaffected)
  - clone
```
public Matrix3f clone()
```
    Creates a copy. The current instance is unaffected.
    
    Overrides:
    
    clone in class java.lang.Object
    
    Returns:
    
    a new instance, equivalent to the current one

Class Matrix3f

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

m00

m01

m02

m10

m11

m12

m20

m21

m22

ZERO

IDENTITY

Constructor Detail

Matrix3f

Matrix3f

Matrix3f

Method Detail

absoluteLocal

set

get

get

normalize

normalizeLocal

getColumn

getColumn

getRow

getRow

toFloatBuffer

fillFloatBuffer

fillFloatArray

setColumn

setRow

set

set

fromAxes

set

set

set

loadIdentity

isIdentity

fromAngleAxis

fromAngleNormalAxis

mult

mult

mult

mult

multLocal

multLocal

multLocal

transposeLocal

invert

invert

invertLocal

adjoint

adjoint

determinant

zero

transpose

transposeNew

toString

hashCode

equals

write

read

fromStartEndVectors

scale

clone