//    Instruction Example :      picture.rotation.stack (float,float,float,long)


        screen.resolution.set (512,384)

        screen.set (FRONT)
          text.display ("Press a key to exit.", CENTER,350)
        screen.end ()

        @pic = picture.load ("avo\fruit.jpg")
        picture.persistence.set (@pic,ON)

        repeat ()
          !x +=2
          !z -=1
          picture.rotation.stack (!x,!y,!z,UP)
          picture.display (@pic,CENTER,CENTER)
          time.wait (0.01)
        until (keyboard.get())

        script.stop ()