| 摘要 |
PROBLEM TO BE SOLVED: To enable a player to select and display an optional shooting range on a screen without the need of complicated operations. SOLUTION: A swing pedal 1 for operating and inputting a rotation angle by the direction of the toe of the player 15 provided, the rotation angle of the swing pedal 1 is detected in a CPU 4 as a pedal input value ρ through a detection part 2 and an A/D converter 3 and a visual field angle θ is calculated from the pedal input value ρ. By outputting it to a video processor 5, only a prescribed area is displayed and outputted to a monitor 7 from the entire screen based on the visual field angle θ. |
