| 摘要 |
PROBLEM TO BE SOLVED: To find out the non-closed part of graphic and to speedily and easily draw a completely closed graphic by confirming whether a graphic existent in a designated range is closed or not and outputting warning information when the graphic is not closed. SOLUTION: Under the control of a CPU 1, a closed graphic judge part 5 judges whether the graphic is closed or not. Namely, a desired range of object is designated and it is confirmed whether the graphic in the range is closed or not. When the graphic is not closed, a means for issuing an alarm issues alarm and the non-closed part of the graphic is retrieved. In this case, when warning is issued, an instruction for preferably automatically connecting the part is applied, and corresponding to this instruction, the opened part is automatically connected and a closed graphic is drawn. Thus, since it is not necessary to extend and visually confirm the connected sections of the graphic one by one but the opened section is automatically found out only by designating the object graphic, the time for finding out the non-closed section is shortened, and since such a section is automatically corrected, the time for drawing the completely closed graphic can be shortened. |
