| 摘要 |
PURPOSE: To facilitate the three-dimensional movement of an object on a display screen by displaying a shadow area relating to a cursor. CONSTITUTION: In an interactive computer controlled display device, the cursor 2 provided with a, position corresponding to the three-dimensional movement of a cursor controller and provided with at least one edge is displayed on a data display screen 1. Then, the shadow 3 provided with the edge corresponding to the edge of the cursor 2 projected on a two-dimensional shadow plane 4 along a light vector and provided with the position corresponding to the three- dimensional movement of the cursor controller is displayed on the display screen 1. Thus, a user is helped to discriminate the movement and position of the object in a space. |
