Hatton, Richard G · London, Chapman & Hall ld. · leaf 188
ints, as in Fig. 112. But when Shadows of and on Cylinders 153 the object is a cylinder, or a hollow cylinder, we have touse the method shown in the small sketch on Pig. 118. There L is the light and S the seat of it on the planeof the circle. A line from S across the month of thehollow cylinder,… … Fio. 118.—The method of obtaining shadows of cylinders. careful to make SL follow the direction of the tube. Aray from L through A will strike BC in A, and A willbe the shadow of A. In the larger diagram lines are drawn across the mouthof the tube from the seat of the light; they are alsocarried…
Perspective · Drawing
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