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Class quicktime.qd3d.math.Matrix3x3

java.lang.Object
   |
   +----quicktime.util.QTByteObject
           |
           +----quicktime.qd3d.math.Matrix3x3

public final class Matrix3x3

extends QTByteObject

implements QuickTimeLib, QuickDraw3DLib, Cloneable

kNativeSize

This is the size (the number of bytes) that are required for this class

Matrix3x3()

Creates a Matrix3x3 object and sets it to the identity matrix.

Matrix3x3(float[][])

Construct an instance of a Matrix3x3 from the values of a float[][], which is a 3x3 table, - an array of row values.

adjoint()

Returns the adjoint of the matrix.

clone()

Returns a copy of this class.

copy()

Returns a copy of the matrix.

determinant()

Returns the determinant of this matrix.

getAt00()

Returns the value at the specified index.

getAt01()

Returns the value at the specified index.

getAt02()

Returns the value at the specified index.

getAt10()

Returns the value at the specified index.

getAt11()

Returns the value at the specified index.

getAt12()

Returns the value at the specified index.

getAt20()

Returns the value at the specified index.

getAt21()

Returns the value at the specified index.

getAt22()

Returns the value at the specified index.

getEndianDescriptor()

Returns the EndianDescriptor for this class.

invert()

Returns the inverse of the matrix.

multiply(Matrix3x3)

Returns the product of the two 3-by-3 matrices, this and matrixB.

setAt00(float)

Sets the value at the specified index.

setAt01(float)

Sets the value at the specified index.

setAt02(float)

Sets the value at the specified index.

setAt10(float)

Sets the value at the specified index.

setAt11(float)

Sets the value at the specified index.

setAt12(float)

Sets the value at the specified index.

setAt20(float)

Sets the value at the specified index.

setAt21(float)

Sets the value at the specified index.

setAt22(float)

Sets the value at the specified index.

setIdentity()

Sets the Matrix to the 3-by-3 identity matrix.

setRotateAboutPoint(QDPoint, float)

Rotates a matrix by the specified angle around the point origin.

setScale(float, float)

Scales a matrix by the amount xScale along the x coordinate axis and by the amount yScale along the y coordinate axis.

setTranslate(float, float)

Translates a matrix by the amount xTrans along the x coordinate axis and by the amount yTrans along the y coordinate axis.

transpose()

Returns the transpose of the matrix.

 public static final int kNativeSize

This is the size (the number of bytes) that are required for this class

 public Matrix3x3()

Creates a Matrix3x3 object and sets it to the identity matrix.

 public Matrix3x3(float table[][])

Construct an instance of a Matrix3x3 from the values of a float[][], which is a 3x3 table, - an array of row values.

Parameters:

table - a 3x3 table of float values.

 public static final EndianDescriptor getEndianDescriptor()

Returns the EndianDescriptor for this class.

Returns:

an EndianDescriptor

 public float getAt00()

Returns the value at the specified index.

Returns:

a float

 public void setAt00(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt01()

Returns the value at the specified index.

Returns:

a float

 public void setAt01(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt02()

Returns the value at the specified index.

Returns:

a float

 public void setAt02(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt10()

Returns the value at the specified index.

Returns:

a float

 public void setAt10(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt11()

Returns the value at the specified index.

Returns:

a float

 public void setAt11(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt12()

Returns the value at the specified index.

Returns:

a float

 public void setAt12(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt20()

Returns the value at the specified index.

Returns:

a float

 public void setAt20(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt21()

Returns the value at the specified index.

Returns:

a float

 public void setAt21(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public float getAt22()

Returns the value at the specified index.

Returns:

a float

 public void setAt22(float val)

Sets the value at the specified index.

Parameters:

val - the new float value

 public Matrix3x3 copy()

Returns a copy of the matrix.

QuickDraw3D::Q3Matrix3x3_Copy

Returns:

a copy of matrix3x3.

 public void setIdentity()

Sets the Matrix to the 3-by-3 identity matrix.

QuickDraw3D::Q3Matrix3x3_SetIdentity

 public Matrix3x3 transpose()

Returns the transpose of the matrix.

QuickDraw3D::Q3Matrix3x3_Transpose

Returns:

the transpose matrix

 public Matrix3x3 invert()

Returns the inverse of the matrix.

QuickDraw3D::Q3Matrix3x3_Invert

Returns:

the invert matrix

 public Matrix3x3 adjoint()

Returns the adjoint of the matrix.

QuickDraw3D::Q3Matrix3x3_Adjoint

Returns:

the adjoint matrix

 public Matrix3x3 multiply(Matrix3x3 matrixB)

Returns the product of the two 3-by-3 matrices, this and matrixB.

QuickDraw3D::Q3Matrix3x3_Multiply

Parameters:

matrixB - a matrix

Returns:

the product

 public float determinant()

Returns the determinant of this matrix.

QuickDraw3D::Q3Matrix3x3_Determinant

Returns:

the determinanta

 public void setTranslate(float xTrans,
                          float yTrans)

Translates a matrix by the amount xTrans along the x coordinate axis and by the amount yTrans along the y coordinate axis.

QuickDraw3D::Q3Matrix3x3_SetTranslate

Parameters:

xTrans - The desired amount of translation along the x coordinate axis.

yTrans - The desired amount of translation along the y coordinate axis.

 public void setScale(float xScale,
                      float yScale)

Scales a matrix by the amount xScale along the x coordinate axis and by the amount yScale along the y coordinate axis.

QuickDraw3D::Q3Matrix3x3_SetScale

Parameters:

xScale - The desired amount of scaling along the x coordinate axis.

yScale - The desired amount of scaling along the y coordinate axis.

 public void setRotateAboutPoint(QDPoint origin,
                                 float angle)

Rotates a matrix by the specified angle around the point origin.

QuickDraw3D::Q3Matrix3x3_SetRotateAboutPoint

Parameters:

origin - The desired origin of rotation.

angle - The desired angle of rotation, in radians.

 public Object clone()

Returns a copy of this class.

Overrides:

clone in class Object

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