Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 20
HORIZONTAL PROJECTION /, 1 ^I~^ ^ // 7 J V / VERTICAL PROJECTION Fig. I. OBLIQUE PROJECTIONFig. 2. PERSPECTIVE VIEWFig. 3 ^Fh^^ … % i ^a \o GROUND LINE DESCRIPTIVE GEOMETRY about the ground line to coincide with the hori-zontal coordinate plane in such a way that thefirst and third quadrants will be opened to180°, and the second and fourth quadrants willbe closed to 0°. In comparing Figs. 5, 6, and7 it will be observed that…
Geometry, Descriptive
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