Package com.openinventor.inventor

Class SbMatrix3

java.lang.Object

com.openinventor.inventor.SbBasic

com.openinventor.inventor.SbMatrix3

public class SbMatrix3
extends SbBasic

3x3 matrix class. 3x3 matrix class/datatype.

See SbMatrix for discussion of storage layout and usage of matrices.

See Also:

SbMatrix, SbMatrixd, SbRotation, SbRotationd, SbVec2d, SbVec2f, SbVec2i32, SbVec2s, SbVec3d, SbVec3f, SbVec3i32, SbVec3s, SbVec4b, SbVec4d, SbVec4f, SbVec4i32, SbVec4s, SbVec4ub, SbVec4ui32, SbVec4us

Field Summary

Fields

Modifier and Type	Field	Description
float[]	array

Constructor Summary

Constructors

Constructor	Description
SbMatrix3()
SbMatrix3(float[] components)
SbMatrix3(float c0, float c1, float c2, float c3, float c4, float c5, float c6, float c7, float c8)
SbMatrix3(SbMatrix3 copyFrom)

Method Summary

Modifier and Type	Method	Description
float	det()	Returns the determinant of the matrix.
boolean	equals(java.lang.Object obj)
float[]	getValue()
float	getValueAt(int index)
static SbMatrix3	identity()	Returns an identity matrix.
SbMatrix3	inverse()	Returns the inverse of the matrix.
void	makeIdentity()	Sets matrix to be identity.
void	multiply(SbMatrix3 m)	Post-multiplies the matrix by the given matrix (equivalent to multRight() method).
SbMatrix3	multLeft(SbMatrix3 m)	Pre-multiplies matrix by the given matrix.
SbVec3f	multMatrixVec(SbVec3f src)	Post-multiplies matrix by the given column vector, giving a 3D vector result.
SbMatrix3	multRight(SbMatrix3 m)	Post-multiplies the matrix by the given matrix.
SbVec3f	multVecMatrix(SbVec3f src)	Pre-multiplies matrix by the given row vector, giving a 3D vector result.
void	setRotate(SbRotation q)	Sets matrix to rotate by given rotation.
void	setScale(float s)	Sets matrix to scale by given uniform factor.
void	setScale(SbVec3f s)	Sets matrix to scale by given vector.
SbMatrix3	setValue(float[] components)
SbMatrix3	setValue(float[] components, int startIndex)
SbMatrix3	setValue(float c0, float c1, float c2, float c3, float c4, float c5, float c6, float c7, float c8)
void	setValue(SbMatrix3 copyFrom)
void	setValueAt(int index, float value)
SbMatrix3	times(SbMatrix3 m2)	Multiplies two matrices, returning a matrix result.
SbVec3f	times(SbVec3f v)	Multiplies matrices by vector, returning a matrix result.
static SbMatrix3[]	toArray(long nativeArray, long length)

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

array

public final float[] array

Constructor Detail

SbMatrix3

public SbMatrix3(float[] components)

SbMatrix3

public SbMatrix3(float c0,
                 float c1,
                 float c2,
                 float c3,
                 float c4,
                 float c5,
                 float c6,
                 float c7,
                 float c8)

SbMatrix3

public SbMatrix3(SbMatrix3 copyFrom)

SbMatrix3

public SbMatrix3()

Method Detail

setValue

public void setValue(SbMatrix3 copyFrom)

getValue

public float[] getValue()

getValueAt

public float getValueAt(int index)

setValueAt

public void setValueAt(int index,
                       float value)

setValue

public SbMatrix3 setValue(float c0,
                          float c1,
                          float c2,
                          float c3,
                          float c4,
                          float c5,
                          float c6,
                          float c7,
                          float c8)

setValue

public SbMatrix3 setValue(float[] components,
                          int startIndex)

setValue

public SbMatrix3 setValue(float[] components)

identity

public static SbMatrix3 identity()

Returns an identity matrix.

setRotate

public void setRotate(SbRotation q)

Sets matrix to rotate by given rotation.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

makeIdentity

public void makeIdentity()

Sets matrix to be identity.

toArray

public static SbMatrix3[] toArray(long nativeArray,
                                  long length)

setScale

public void setScale(float s)

Sets matrix to scale by given uniform factor.

setScale

public void setScale(SbVec3f s)

Sets matrix to scale by given vector.

times

public SbVec3f times(SbVec3f v)

Multiplies matrices by vector, returning a matrix result. Return M*v

det

public float det()

Returns the determinant of the matrix.

multVecMatrix

public SbVec3f multVecMatrix(SbVec3f src)

Pre-multiplies matrix by the given row vector, giving a 3D vector result.

inverse

public SbMatrix3 inverse()

Returns the inverse of the matrix. Results are undefined for singular matrices.
The matrix is not modified.

multLeft

public SbMatrix3 multLeft(SbMatrix3 m)

Pre-multiplies matrix by the given matrix. Matrix is replaced by the result.

multRight

public SbMatrix3 multRight(SbMatrix3 m)

Post-multiplies the matrix by the given matrix. Matrix is replaced by the result.

times

public SbMatrix3 times(SbMatrix3 m2)

Multiplies two matrices, returning a matrix result.

multMatrixVec

public SbVec3f multMatrixVec(SbVec3f src)

Post-multiplies matrix by the given column vector, giving a 3D vector result.

multiply

public void multiply(SbMatrix3 m)

Post-multiplies the matrix by the given matrix (equivalent to multRight() method). Matrix is replaced by the resulting matrix.