QM_GetTrackMatrix

QM_GetTrackMatrix(movieRef; trackID; trackMatrix):error
	movieRef	Longint	Movie reference
	trackID	Longint	Track ID
	trackMatrix	Array real	Track matrix
	error	Longint	Error result

Returns the transormation matrix of a track.

Parameter movieRef is the reference to the movie instance. The movie reference must have been previously obtained with a call to QM_NewMovieFromFile or QM_NewMovieFromURL.

Parameter trackID is the ID of the track.

Parameter trackMatrix receives the track's transormation matrix. The track matrix parameter must be declared as a 3 x 3 array of reals.

Example

`Get the transformationmatrix of track ID $trackID of movie $movie

ARRAY REAL($matrix;3;3)

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

Related commands

QM_SetTrackMatrix	Changes the track's transormation matrix.
QM_SetIdentityMatrix	Sets the contents of a matrix record to the identity matrix.
QM_TranslateMatrix	Adds a translation transformation to a matrix record.
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.