| 摘要 |
PURPOSE:To perform coating accurately at a relatively high speed by defining decision points, which indicate that there is a change between the inside and outside of a polygon restored from inflection point data, on the contour line of the polygon and coating the inside of the polygon on the basis of the points. CONSTITUTION:The contour line is represented by patterns P1-P15 and an adjacent point between patterns where there is a difference in Y coordinate is regarded as a decision point. When adjacent points succeed horizontally, they are put in one group and when adjacent points of patterns adjoining to both ends of said group are different, optional one in this group, e.g. point having the smallest X coordinate is regarded as a decision point. In this case, oblique patterns P1, P5, P7, and P15 are defined as decision points, and the part among them is coated as shown by a mark X to restore an original pattern. Therefore, inflection point data are extracted and held in an inflection point data holding part 1 and then a contour restoration part 2 restores the contour; and a decision point definition part 3 defines the decision point by said method, so that a coating part 4 coats the inside. |
