| 摘要 |
PURPOSE:To attain final painting out work with the use of arbitrary pattern in an arbitrary graphic even when any image exists in a background by copying the all black graphic of a work area on a plotting area with an OR operation, and plotting the desired pattern after the area is changed to be all black. CONSTITUTION:The desired graphic is plotted in an work area (WA), the whole surface is painted out by the black, and the rectangular area including the whole black graphic is copied to the desired position in a plotting area (PA) by the OR operation. Next, the desired pattern is plotted on the WA by the OR operation by executing a black/white inversion. The after, the rectangular area including the graphic of the WA is overlapped on the graphic of the PA by the exclusive OR operation. Thus, the final painting-out by means of the desired pattern of the desired graphic can be completed without a boundary. Finally, the boundary is plotted, and the painting-out is completed. |
