Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 437
Fig. 215. Peoblem 176. To determine the angle a given line ab will form ivith agiven plane Z. Fig. 216. This problem is similar to Prob. 106. The principle of this problem is explained at the commence-ment of Chap. XXVI. Draw the inclination of the given plane, as cD, working fromthe level 6 (Prob.… … Fig. 216. Find the elevation of the given line, as ah (Prob. 161).From a draw ae perpendicular to cD. Draw the projectorec till it meets a line from a parallel to Z. ac is the plan of etc. Draw a line from e ]3arallel to Ztill it meets a.y in/. Draw theprojector ff till it meets ctb in /.Join ef.…
Geometrical drawing
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