Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 108
Fig. 147. Fig. 148. Special Case (Fig. 149). Let the given plane Q be parallelto the ground line. Then the auxiliary line M, drawn througha and parallel to the principal lines of Q, is parallel to GL(§ 101) and has no traces on H and V. Pass the auxiliary … Fki. 149. profile plane P through the given point. Find the profile trace,PQ, of Q, and the profile projection, ap, of a. The profiletrace, PT, of the required plane will pass through a and beparallel to PQ (§ 103). From PT may be found IIT and VT. 88 DESCRIPTIVE GEOMETRY [X, § 108 108. Use of…
Geometry, Descriptive
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