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 488
.T. through Etill it meets XY in /. Join ^G. Join Dh and E/i. Find the H.T. of a line through c, as described in the pre-ceding problem, and determine points n and C. Join the points,as shown, to complete tlie shadow. PROTECTION OF SHADOWS 467 PROBLEM 216. To determine tlic line of se^paration and… … Fig. 266. First determine a line from the centre of the sphere to the 468 SOLID GEOMETRY chap. luminous point, rotated till it is parallel to the V.P,, asfollows:— Draw a line from o, the centre of the plan of the sphere,parallel to XY, as og. With o as centre, and radius oL, draw anarc till it…
Geometrical drawing
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