 TURN                                                               Menu: SOLID
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 Rotates the target point about the eye point when in the perspective mode.
 (Applicable in solid module only.)

         1. * (CHAR) target turning direction (u,d,l,r)
         2. * (NUM) angle (+/- 1-360 deg.)

 Description:
 This command moves the target in relation to the eye on the surface of an
 imaginary sphere. It is analogous to turning your head while walking inside
 your model. You may turn left, right, up or down. The command may be used only
 while in pers (perspective) mode. If you are not in this mode you will be
 transferred to it by the system.
 You are prompted to define the direction of turning, and then to define the
 angle in degrees.

         Example: \turn r 10

 Result: Your model will be displayed with the target point shifted 10 to the
 right.
