Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 147
Fig. 196. F-trace of the line (Prob. 1, § 37). The actual trace, f, lies inVQ. The projection A is now determined, since two points,sv and f, are known. Similarly, the projection Ah may be found if Av is given. … Fig. 19 A second example is given in Fig. 197. The lettering andexplanation are the same as for Fig. 196. Special Case I. Suppose that the given projection is par-allel (a) to the corresponding trace of the plane; or (b) to theground line. In either event the line should be recognized asone of the…
Geometry, Descriptive
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