QMedia Matrix commands

QM_SetIdentityMatrix

QM_SetIdentityMatrix(matrixRec):error
matrixRec Array real Matrix record
error Longint Error result

Sets the contents of a matrix record to the identity matrix. The identity matrix does not perform an tranformations.

Parameter matrixRec receives the identity matrix. It must be declared as a 3 x 3 array of reals.

Example

ARRAY REAL($matrix;3;3)
 
$err:=QM_SetIdentityMatrix ($matrix)
 

Related commands

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.
QM_SetTrackMatrix Changes the track's transormation matrix.
QM_GetTrackMatrix Returns the track's transormation matrix.

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