An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 341
e ABCD, if the lines of projection AE, BF,DH, CO are in the same direction. 1135. The level surface ABCD would have forprojection on vertical planes the right lines ah, be,because that surface is in the same plane as thelines of projection. 11.36. The inclined surface EFGH will give onvertical… … Fig. 465. PROJECTION OF CURVED LINES. 1137. Curved lines not having their points in the same direction occupy a space whichbrings them imder the laws of those of surfaces. The projection of a curve on a planeparallel to the surface in which it lies (Jig. 464.) is similar to the curve.
Architecture · Architects
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