| 摘要 |
PCT No. PCT/JP86/00367 Sec. 371 Date Mar. 16, 1987 Sec. 102(e) Date Mar. 16, 1987 PCT Filed Jul. 17, 1986 PCT Pub. No. WO87/00648 PCT Pub. Date Jan. 29, 1987.The invention relates to an area cutting method in which a tool is moved along a plurality of paths (CP3-CPo, LP5-LP1) successively offset in an inward direction from a closed curve (OFC) specifying an area (AR), or in other words, in which the tool is moved in a spider web-like pattern, to cut the interior of the area. More particularly, the invention relates to an area cutting method in which, when an area is divided into a plurality of convex polygons, the number of cutting paths in each convex polygonal portion is decided in dependence upon the size of the convex polygon and the cut-in pitch (path interval) of each convex polygonal portion is made substantially the allowable cut-in pitch.
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