Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 112
BX Plan Planes of light 90° with H plane Shadow of ab on-planes R-T-S-V … Fig. 56 Section on line^ A A 101 102 GENERAL METHODS niche is cast on each of these planes by casting, the shadow ofthe center of the Shade-hne on the AuxiHary Planes, andthe points in which these shadows intersect the slices (cutfrom the Niche by the Auxiliary Planes), will be pointsa, h, c, d,…
Shades and shadows · Geometry, Descriptive
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