QM_TranslateMatrix

QM_TranslateMatrix(matrixRec; deltaH; deltaV):error
	matrixRec	Array real	Matrix record
	deltaH	Real	Horizontal delta
	deltaV	Real	Vertical delta
	error	Longint	Error result

Adds a translation transformation to a matrix record.

Parameter matrixRec specifies the matrix. It must be declared as a 3 x 3 array of reals. QMedia updates and returns the contents matrixRec with the specified translation operation.

Parameters deltaH and deltaV specify the horizontal and vertical coordinate translation values respectively.

Example

`Move track ID $trackID of movie $movie by 20 pixels horizontally and vertically

ARRAY REAL($matrix;3;3)

$err:=QM_GetTrackMatrix ($movie;$trackID;$matrix)

$err:=QM_TranslateMatrix ($matrix;20;20)

$err:=QM_SetTrackMatrix ($movie;$trackID;$matrix)

Related commands

QM_SetIdentityMatrix	Sets the contents of a matrix record to the identity matrix.
QM_ScaleMatrix	Adds a scaling transformation to a matrix record.
QM_RotateMatrix	Adds a rotation transformation to a matrix record.
QM_SkewMatrix	Adds a skew transformation to a matrix record.
QM_ConcatMatrix	Concatenates two matrices.
QM_SetTrackMatrix	Changes the track's transormation matrix.
QM_GetTrackMatrix	Returns the track's transormation matrix.