A Dictionary of science, literature, and art [electronic resource]: comprising the history, description, and scientific principles of every branch of human knowledge; with the derivation and definition of all the terms in general use (1844)
Brande, William Thomas, 1788-1866, Cauvin, Joseph · New York : Harper & brothers · leaf 931
e exactly opposite to the eye, or the pointin which a perpendicular from the eye falls on the plane.In the ground plane draw V W parallel to A D; its per-spective v w will be parallel to a d in the picture, and adwvwill be the perspective of the part A D W V in the originalplane. We shall now… … plane VGKC, contiguous to, and at right angles with, theperspective plane YZSE. F H is the distance of the plane,and H I the height of the eye at I. HE is parallel to G Bor C K, and bisects A D and B C in the points F and E. Onthe point E raise the perpendicular E M, equal to H I, anddraw the lines…
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