nsfw:racy: Likely ocr: (a) (b) (c) Figure 2: Cure segmen inside a sector: Irt (a), the curve is represented bya thick dark line. curve ventices are marked as smail circles, The sector boundaries are draun CES rectangles. Verfices inside tbe sector are marked dark, vbile vertices outside tbe sector are marked blank: Ibe curve patbfor the sector is draum witb a tbin, gray line uderimposed t0 tbe cuve line. Notice Mbal wo ventices outside tbe sector are needed irt order - tofully specifytbe curve path. Tbese tuo vertices are called off-by-one vertices - Witb off-by-one mertices, tbe curue segment car be draunt as int ( ...
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