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 386
ere ; the cutting plane to he i7iclinedat an angle of B5° with the H.P., and 74° tvith the V.P.Pig. 168. Find the traces of the cutting plane (Prob. 83 or 84). SECTIONS OF SOLIDS, ETC. 365 As a sphere is a continuous surface without any edges orangles, it will be necessary to assume certain fixed… … Fig. 168. It will be better to arrange the meridians on pian so that oneof them is parallel to the H.T. Assume a Y.P. perpendicular to the cutting plane and con-taining the axis of the sphere. Let ab be the H.T. of this plane,and ah the line in which it intersects the cutting plane. Wherethis line…
Geometrical drawing
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