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 440
ine a plane making an o.ngle 6 withthe H.P., and perpendicular to a given plane. Fig. 221. Let Z be the given plane. Find the elevation of Z (Prob.163), also of the given point a, asa (Prob. 162), working from the levelof e. From ct draw a line makingthe angle 0 with Z, and meeting it inc. From c… … 420 SOLID GEOMETRY to the elevation of Z {cVe), and meeting Z in h. Draw a pro-jector from 6 till it meets ac produced in h. Erom h draw a line tangential to the base of the cone. Froma draw a line parallel to the tangent from &, and draw the scaleof slope Z perpendicular to them. Index Z with…
Geometrical drawing
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