| 摘要 |
PURPOSE:To immediately recognize a picked objective graphic by storing graphic registration information (picked information) in graphic management information, as well as the pick processing of two-dimensional displayed figures in all or the part of a Z buffer. CONSTITUTION:The title device is provided with a means storing two-dimensional graphics as the result of the processing of a processor 4 in a frame memory 6 when the two-dimensional graphic is displayed, a means storing the graphic registration information of the graphic management information as two-dimensional graphic picked information in all or a part of the Z buffer 7 accompanied by above-mentioned storage corresponding to the address of the images of the frame memory 6 and a means making access to the Z buffer 7, reading the corresponding picked information in a pick area and making it to be the object of the pick processing at the time of pick specifying. Therefore, when two-dimensional display is performed in a three-dimensional display device and the picking processing is performed, the picked objective graphic can be retrieved only by reading the graphic management information stored in the Z buffer 7. Thus, responsiveness can be improved. |
