Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 72
44, page 31). 0 B Fig. 126 illustrates a condition in which thegiven plane iVis parallel with GL ; hence, theauxiliary line B^ perpendicular to iV, is parallelto P, thus requiring a profile projection todetermine its traces. VS is the vertical traceof the plane of lines A and B (its other traceis… … Fig. 124 56 DESCRIPTIVE GEOMETRY 1st Method. 1. Revolve the line about itsliorizontal projection as an axis to obtain theangle which it makes with H, 2. Revolvethe line about its vertical projection as anaxis to obtain the angle which the line makeswith V. CoKSTKUCTiON. Fig. 127 represents thegiven…
Geometry, Descriptive
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