Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 70
of Light with the GL, intersects the V Projectionof the Ray of Light. Case II. When the shadow of a given point falls onthe Horizontal Coordinate, or is shown on the plan of anobject. (Fig. 13.) This case is the same as the preced ng one, exceptthat the Ray of Light pierces the H Plane instead… … Fig. 12
Shades and shadows · Geometry, Descriptive
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