On entry: the arguments for each transformation. For
,
to
contain the arguments of the
th transformation.
If , elements to are not referenced.
If , the translation vector is , where and , while elements to are not referenced.
If , the user-supplied line is the curve {; such that }, where , and , while elements to are not referenced.
If , the centre of the rotation is where and , is its angle in degrees, while elements to are not referenced.
If , is the scaling coefficient in the -direction, is the scaling coefficient in the -direction, and are the scaling centre coordinates, with and ; while elements to are not referenced.
If , the user-supplied analytic affine transformation is such that and where, and with .