| 摘要 |
PURPOSE:To carry out the area-filling process of a graphic at a high speed by performing a sorting process while writing the outer circumference coordinate value of a polygon into a buffer. CONSTITUTION:A RAM (memory) 11, a sorting circuit (sequence circuit) 13, and a buffer control part 15 are prepared. Then the outer circumference coordinates of a polygon are inputted via an external interface means, are compared with the coordinates already stored in the RAM 11 based on a prescribed coordinate axis. Then these coordinates are rearranged and then the coordinate input is allowed to the external interface means. Thus the area-filling process of a graphic is attained at a high speed. |
