Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 63
Fig. 78. intersect on VP. Whence, if HQ and VQ are given, PQ maybe found as shown in Fig. 78. 42 DESCRIPTIVE GEOMETRY [VI, § 60 The profile trace of a different plane, R, is found in Fig 79. … Fig. 79. The profile trace of a plane parallel to the ground line isfound in the same way, as shown in Fig. 80. This is an ini- V / vs *y CL > r H \ n I V HS Fig. 80. portant case, for the plane S is perpendicular to P, and conse-quently the profile trace is an edge view of the plane S.
Geometry, Descriptive
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