Elementary linear perspective of form and shadow ... Complete in itself ... For draftsmen, artists, and industrial drawing courses in preparatory and high schools, etc. In two parts.. (1891)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 54
ich itpierces the perspective plane (58). The latter point is at once inthe perpendicular, wB, to the ground line, and in the vertical pro-jection fYl of the same ray. Hence the desired point is B,which is the perspective of J, /. [This being a new form of example, the construction of the… … Fig. 23. The ray cE-cE pierces the perspective plane at C, which istherefore the perspective of c^d, In like manner the pei*spectivesof any other points can be found. By inspection of the vertical projection, ad\ it appears thatthe extreme visual rays, as aE, as seen in vertical projection,…
Perspective · Mechanical drawing
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