IROT90-Rotates an image through 90 degrees

Description:

The datafile is rotated throught 90 degrees in a clockwise direction, unless ANTI is specifified, in which case the rotatation is anti-clockwise.

Parameters:

IMAGE

The name of the structure containing the image.

OUTPUT

The name of the result of the operation. This can be the same as for IMAGE. In any case, a new structure is created, with everything but the data a direct copy of the input.

ANTI

If set, the rotation is anti-clockwise.

See also:

FIGARO: IREVX, IREVY.
KAPPA: FLIP, ROTATE, TRANSFORMER.

Source comments:

 I R O T 9 0

 Rotates an image through 90 degrees

 Command parameters -

 IMAGE  The name of the structure containing the image.

 OUTPUT The name of the result of the operation.  This can
        be the same as for IMAGE.  In any case, a new structure
        is created, with everything but the data a direct
        copy of the input.

 Command keywords -

 ANTI   If set, the rotation is anti-clockwise.

                                  KS / CIT 7th March 1983