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Class quicktime.std.image.Matrix

java.lang.Object
   |
   +----quicktime.util.QTByteObject
           |
           +----quicktime.std.image.Matrix

public final class Matrix

extends QTByteObject

implements QuickTimeLib, Cloneable

kNativeSize

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

Matrix()

Construct an instance of a Matrix, with default settings of the identity Matrix

Matrix(float[][])

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

Matrix(QDPoint[], QDPoint[])

Construct a Matrix that is a delta matrix between the two sets of 4 points.

clone()

copies the contents of the one matrix into another matrix.

concat(Matrix)

Concatenates two matrices, combining the transformations described by both matrices into a single matrix.

copy()

copies the contents of the one matrix into another matrix.

equals(Matrix)

Compares the contents of a matrix for Equality.

getB()

Gets the b value.

getC()

Gets the c value.

getSx()

Gets the X axis scale amount.

getSy()

Gets the Y axis scale amount.

getTx()

Gets the X axis translation amount.

getTy()

Get the Y axis translation amount.

getType()

Obtains information about the matrix.

getU()

Gets the u value.

getV()

Gets the v value.

getW()

Gets the w value.

inverse(Matrix)

creates a new matrix that is the inverse of a specified matrix.

isIdentity()

Returns true if the matrix is an identity matrix otherwise false

map(QDRect, QDRect)

alters an existing matrix so that it defines a transformation from one rectangle to another.

rect(QDRect, QDRect)

creates a matrix that performs a translate and scale operation as described by the relationship between two rectangles.

rotate(float, float, float)

modifies the contents of a matrix so that is defines a rotation operation.

scale(float, float, float, float)

modifies the contents of a matrix so that it defines a scaling operation.

setB(float)

Set b by specified amount.

setC(float)

Set c by specified amount.

setIdentity()

Set the contents of a matrix so that it performs no transformation.

setSx(float)

Set the X axis Scale by specified amount.

setSy(float)

Set the Y axis Scale by specified amount.

setTx(float)

Set the X axis translation by specified amount.

setTy(float)

Set the Y axis translation by specified amount.

setU(float)

Set u by specified amount.

setV(float)

Set v by specified amount.

setW(float)

Set w by specified amount.

skew(float, float, float, float)

modifies the contents of a matrix so that it defines a skew transformation.

toString()

Prints the matrix.

transformDPoints(QDPoint)

Transforms a set of fixed points through a specified matrix.

transformDPoints(QDPoint[])

Transforms a set of fixed points through a specified matrix.

transformDRect(QDRect)

transforms the upper left and lower right points of a rectangle through a specified matrix.

transformDRect(QDRect, QDPoint[])

transforms the upper left and lower right points of a rectangle through a specified matrix.

transformPoints(QDPoint)

transforms a set of QuickDraw points through a specified matrix.

transformPoints(QDPoint[])

transforms a set of QuickDraw points through a specified matrix.

transformRect(QDRect)

transforms the upper left and lower right points of a rectangle through a specified matrix.

transformRect(QDRect, QDPoint[])

transforms the upper left and lower right points of a rectangle through a specified matrix.

transformRgn(Region)

applies a specified matrix to a region.

translate(float, float)

add a translation value to a specified matrix.

 public static final int kNativeSize

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

 public Matrix()

Construct an instance of a Matrix, with default settings of the identity Matrix

 public Matrix(float table[][])

Construct an instance of a Matrix 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 Matrix(QDPoint source[],
               QDPoint dest[]) throws QTException

Construct a Matrix that is a delta matrix between the two sets of 4 points. This call is available only in QuickTime 4 or later. The resulting matrix can be concatenated with the matrix from which the source points are derived to transform the display object to the destination area.

QuickTime::QuadToQuadMatrix

Parameters:

source - a set of 4 points t,l t,r b,r and b,l that describes the source area

dest - a set of 4 points t,l t,r b,r and b,l that describes the destination area

 public void setTx(float tx)

Set the X axis translation by specified amount.

Parameters:

tx - amount to set x-axis translation

 public float getTx()

Gets the X axis translation amount.

Returns:

x-axis translation

 public void setTy(float ty)

Set the Y axis translation by specified amount.

Parameters:

ty - amount to set y-axis translation

 public float getTy()

Get the Y axis translation amount.

Returns:

y-axis translation

 public void setSx(float sx)

Set the X axis Scale by specified amount.

Parameters:

sx - amount to set x-axis scale.

 public float getSx()

Gets the X axis scale amount.

Returns:

x-axis scale.

 public void setSy(float sy)

Set the Y axis Scale by specified amount.

Parameters:

sy - amount to set x-axis scale.

 public float getSy()

Gets the Y axis scale amount.

Returns:

Y-axis scale.

 public void setB(float b)

Set b by specified amount.

Parameters:

b - amoutn specified.

 public float getB()

Gets the b value.

Returns:

b value.

 public void setU(float u)

Set u by specified amount.

Parameters:

u - amount specified.

 public float getU()

Gets the u value.

Returns:

u value.

 public void setC(float c)

Set c by specified amount.

Parameters:

c - amount specified.

 public float getC()

Gets the c value.

Returns:

c value.

 public void setV(float v)

Set v by specified amount.

Parameters:

v - amount specified.

 public float getV()

Gets the v value.

Returns:

v value.

 public void setW(float w)

Set w by specified amount.

Parameters:

w - amount specified.

 public float getW()

Gets the w value.

Returns:

w value.

 public short getType()

Obtains information about the matrix.

QuickTime::GetMatrixType

Returns:

indicates the nature of the transformation defined by Matrix.

 public boolean isIdentity()

Returns true if the matrix is an identity matrix otherwise false

 public void setIdentity()

Set the contents of a matrix so that it performs no transformation.

QuickTime::SetIdentityMatrix

 public void translate(float deltaH,
                       float deltaV)

add a translation value to a specified matrix.

QuickTime::TranslateMatrix

Parameters:

deltaH - specifies the value to be added to the x coordinate translation value.

dletaV - specifies the value to be added to the y coordinate translation value.

 public void rotate(float degrees,
                    float aboutX,
                    float aboutY)

modifies the contents of a matrix so that is defines a rotation operation.

QuickTime::RotateMatrix

Parameters:

degrees - specifies the number of degrees of rotation.

aboutX - specifies the x coordinate of the anchor point of rotation.

aboutY - specifies the y coordinate of the anchor point of rotation.

 public void scale(float scaleX,
                   float scaleY,
                   float aboutX,
                   float aboutY)

modifies the contents of a matrix so that it defines a scaling operation.

QuickTime::ScaleMatrix

Parameters:

scaleX - specifies the scaling factor applied to x coordinates.

scaleY - specifies the scaling factor applied to y coordinates.

aboutX - specifies the x coordinate of the anchor point.

aboutY - specifies the y coordinate of the anchor point.

 public void skew(float skewX,
                  float skewY,
                  float aboutX,
                  float aboutY)

modifies the contents of a matrix so that it defines a skew transformation.

QuickTime::SkewMatrix

Parameters:

skewX - specifies the skew value to be applied to x coordinate.

skewY - specifies the skew value to be applied to y coordinate.

aboutX - specifies the x coordinate of the anchor point.

aboutY - specifies the y coordinate of the anchor point.

 public boolean inverse(Matrix mr)

creates a new matrix that is the inverse of a specified matrix.

QuickTime::InverseMatrix

Parameters:

mr - specifies the new inverse matrix.

Returns:

true if inverse matrix was created, else return false.

 public void concat(Matrix b)

Concatenates two matrices, combining the transformations described by both matrices into a single matrix.

QuickTime::ConcatMatrix

Parameters:

mr - the destination matrix.

 public void transformDPoints(QDPoint dpt) throws QTException

Transforms a set of fixed points through a specified matrix.

QuickTime::TransformFixedPoints

Parameters:

dpts - a set of float points.

 public void transformDPoints(QDPoint dpts[]) throws QTException

Transforms a set of fixed points through a specified matrix.

QuickTime::TransformFixedPoints

Parameters:

dpts - a set of float points.

 public void transformPoints(QDPoint pt) throws StdQTException

transforms a set of QuickDraw points through a specified matrix.

QuickTime::TransformPoints

Parameters:

pts - an array of Points.

 public void transformPoints(QDPoint pts[]) throws StdQTException

transforms a set of QuickDraw points through a specified matrix.

QuickTime::TransformPoints

Parameters:

pts - an array of Points.

 public boolean transformDRect(QDRect r) throws QTException

transforms the upper left and lower right points of a rectangle through a specified matrix.

QuickTime::TransformFixedRect

Parameters:

r - the QDRect to be transformed.

Returns:

false if the transformation is other than scaling and translation.

 public boolean transformDRect(QDRect r,
                               QDPoint points[]) throws QTException

transforms the upper left and lower right points of a rectangle through a specified matrix.

QuickTime::TransformFixedRect

Parameters:

r - the QDRect to be transformed.

bound - an array of four float points.

Returns:

false if the transformation is other than scaling and translation.

 public boolean transformRect(QDRect r) throws QTException

transforms the upper left and lower right points of a rectangle through a specified matrix.

QuickTime::TransformRect

Parameters:

r - the rectangle to be transformed.

Returns:

false if the transformation is other than scaling and translation.

 public boolean transformRect(QDRect r,
                              QDPoint points[]) throws QTException

transforms the upper left and lower right points of a rectangle through a specified matrix.

QuickTime::TransformRect

Parameters:

r - the rectangle to be transformed.

bounds - an array of four float points.

Returns:

false if the transformation is other than scaling and translation.

 public void transformRgn(Region r) throws StdQTException

applies a specified matrix to a region.

QuickTime::TransformRgn

Parameters:

r - the region to be transformed.

 public void rect(QDRect srcRect,
                  QDRect dstRect)

creates a matrix that performs a translate and scale operation as described by the relationship between two rectangles.

QuickTime::RectMatrix

Parameters:

srcRect - the source rectangle.

dstRect - the destination rectangle.

 public void map(QDRect fromRect,
                 QDRect toRect)

alters an existing matrix so that it defines a transformation from one rectangle to another.

QuickTime::MapMatrix

Parameters:

fromRect - the source rectangle.

toRect - the destination rectangle.

 public String toString()

Prints the matrix.

Overrides:

toString in class QTByteObject

 public Matrix copy()

copies the contents of the one matrix into another matrix.

QuickTime::CopyMatrix

Returns:

a clone Matrix.

 public Object clone()

copies the contents of the one matrix into another matrix.

QuickTime::CopyMatrix

Returns:

a clone Matrix.

Overrides:

clone in class Object

 public boolean equals(Matrix m)

Compares the contents of a matrix for Equality.

QuickTime::EqualMatrix

Parameters:

m - the Matrix you are testing for equality.

Returns:

a boolean of whether the matrices are equal.

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