| 摘要 |
PURPOSE:To improve graphic accuracy with few control data by providing a decode circuit to distinguish a data line from a data radius as well as the surface coloring generator including a radius, and displaying graphics consisting of graphics and straight lines including radii. CONSTITUTION:After graphic data are inputted into the data register 1, these are inputted into the X and Y registers 5, 6 as well as the straight line closed area decode circuit 2 and the area decode circuits 3 and 4 including radii. The decode circuits 2, 3 and 4 decode the lines and the cycles included in the graphic data, and actuate the straight line closed area generator 7 and radius area line generators 8 and 9. Thus generated lines and circle signals are inputted in the Z axis amplifier 12 and the surface coloring generator 13, and a graphic is displayed on a cathode display 14. Also X and Y values on the coordinate data in the data register 1 are inputted respectively in the X and Y registers 5 and 6, and then inputted in the surface coloring generator 13 via A/D converters 10 and 11. |
