Hatton, Richard G · London, Chapman & Hall ld. · leaf 264
e drawn across the long way of thepaper, 2^ inches from the top, and the centre of visionplaced on the centre of the horizon. The subject is a square slab with a pattern upon theupper surface. The only danger or catch can be inthe pattern being on the upper surface, for the studentmay make the slip… … Fig. 172.—Diagram Q. 1. (Scale J inch to 1 foot.) Excepting for this, the problem is one of rery straightsailing. The ground-line will be 6 feet by scale down belowthe horizon. The picture-line for the top of the slab 230 ferspective would be a shade over 1 foot above G-.L. Therefore, inFig. 173, A…
Perspective · Drawing
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