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15 Special Transformations
118
Fig. 15.4-1
It is evident from the figure that the order of applying the various transformations is relevant.
The programmed mirror image is a different case. It can be set up in states G50 and G69 only, i.e.,
in the absence of scaling and rotation commands.
On the other hand, with mirror imaging set up, both scaling and rotation can be applied.
Mirror images also may not be overlapped with scaling and rotation commands. Accordingly first
rotation and scaling have to be canceled in the appropriate order, followed by the instruction
canceling the mirror image.
G51.1 ... (mirror image set up)
G51 ... (scaling set up)
G68 ... (rotation set up)
...
G69 ... (canceling rotation)
G50 ... (canceling scaling)
G50.1 ... (canceling mirror image)