Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 72
Fig. 13 … Fig. 14 Fig. 15 60 SHADOWS OF POINTS with the GL, intersects the H Projection of the Ray ofLight. Case III. When the shadow of any point falls on theGL, or on both coordinates. (Fig. 14.) In this case the projections of the Rays of Light throughthe projections of the point, intersect the GL at the…
Shades and shadows · Geometry, Descriptive
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