| 摘要 |
In a computer system that has a graphic display, an external memory device, and a mouse, this system comprises a figure data read-in processing unit that reads in three-dimensional figure data stored in the external memory device into the system and stores the data; a mouse control unit that specifies an arbitrary cross-section and moves and rotates the three-dimensional figure using a mouse; a cross-section shape processing unit that computes the cross-section shape figure data for the three-dimensional figure based on the cross-section specification by the mouse control unit; a figure data editing unit that judges which parts of the three-dimensional figure including the cross-section are not to be displayed and edits the figure data; and a graphic control unit that displays the figure data on a graphic display, |
