Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 81
Fig. 26 Section Elevation PRINCIPLES OF SHADES AND SHADOWS ()9 on both coordinates, or on the plan and elevation, or onany oblique plane. Let ab be the given straight line whose shadow fallson both the coordinates. (Figs. 24 and 22.) Imaginary Shadows are employed in this Case. The shadow of the…
Shades and shadows · Geometry, Descriptive
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