Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 290
Note.—By this method xy may be drawn with the tee-square, andthe set-square used for the projectors. Case II.—Let av Ik, cb be the given plans, Fig. (3).The line BC is nearly horizontal, and the point on it at thelevel of A is supposed to be inaccessible. Determine the elevations of A, B, C as in… … Unit = 075 241. Problem.—To determine the scale of slope of aplane containing three points A, B, C, the indexed plans ofwhich are given. Let g8, ?>10, <r6 be the given indexed points, Fig. (2). By one of the methods of Prob. 240 determine a^d^,the plan of a horizontal line in the plane of…
