| 摘要 |
PURPOSE:To judge an outline more correctly in the case of plotting it as one line than in the case of plotting a prescribed line as plural line segments by dividing the line of a first shape into plural pieces by basing an intersection point as a reference. CONSTITUTION:First of all, the intersection point is calculated with regard to the prescribed line constituting an upper side shape in a step 1-1. Next, the presence/absence of the intersection point is judged in a step 1-2 and the processing goes to a step 1-3 in the case of judging the presence of the intersection point to judge whether the intersection point is the endpoint (the starting point or the finishing point) of a line which is set to be a processing object or not. When the intersection point is not the end point, the processing goes to a step 1-4 to divide the line segment. Thus, the intersection is changed to the end point. When the intersection point is judged to be absent in the step 1-2 or when the intersection is judged to be the endpoint in the step 1-3 even at the time of being judged to be present, dividing processing in the step 1-4 is skipped and the processing goes to 1-5 to write the line segment into a line segment data table. |
