Hatton, Richard G · London, Chapman & Hall ld. · leaf 176
ll occur on a semi-circle from V.P.I to V.P.2; we get this semicircle. Apply- A Few Hints to Draughtsmen 141 ing the same principle, we know that two lines from theends of the line from V.P.i to V.P. diagonals, that is, fromthose two points, will contain 45°. If, then, on that lineas a chord we… … Fig. 108.—How to find the true meaaniementB of a freehand sketch. V.Pi, V.P. diagonals, 45° (which is the difference betweenthe angle we want, 45° and 90°), and where this anglecuts the perpendicular will be the centre of the circleyielding the segment. B is, therefore, the centre. Drawthe segment,…
Perspective · Drawing
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