Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 72
t the last mentioned point,with the first mentioned projection of the Ray of Light,is the required projection of the Imaginary Shadow of thegiven point. Case V. To find the shadow of a point, having givenone Coordinate Projection, either plan or elevation, and theProfile Projection. (Figs. 16, 17,… … 62 SHADOWS OF POINTS The two projections of the Ray of Light, W and R^,or R\ are passed through the projections of the point.The projection of the shadow of the point is the pointin which a hne, erected at the intersection of the ProfileProjection of the Ray with thei7 or V Coordinate,…
Shades and shadows · Geometry, Descriptive
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