| 摘要 |
PURPOSE:To plot the graphics of a symmetrical shape for which paint parts and erasure parts are well balanced by providing a paint part/erasure part pitch correction processing part and a paint part arrangement processing part. CONSTITUTION:At the time of plotting a circle or an ellipse by a broken line, the paint part/erasure part pitch correction processing part 12 and the paint part arrangement processing part 14 are provided and a paint pitch and an erasure pitch are adjusted so as to uniformly arrange the respective paint parts and the respective erasure parts of the broken line inside one quadrant by the paint part/erasure part pitch correction processing part 12. Also, by the paint part arrangement processing part 14, at the time of arranging the paint parts of the broken line, arrangement positions are adjusted so as to place the paint parts symmetrically in vertical and horizontal directions from a center or major axis and minor axis directions. Also, at the time of plotting the ellipse by a thick broken line, an end point cut end processing part 15 is provided and the processing of the cut ends of the starting point and ending point of the broken line is performed by the end point cut end processing part 15. |
