Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 243
nders formingthe grain, at points j, ]i, I, and m.These points are determined onplan and projected to the eleva-tion. Other cutting planes wouldgive other points. By joining,on the elevation, all such pointswhich result from the same graincylinder, the appearance of thegrain can be established… … Fig. 208 XI, § 192) APPLICATIONS OF CHAPTERS VII-VIII 227 any given line crosses the meridian section, as n and o, can bedetermined exactly by noting on plan the intersection of themeridian plane, M, and the grain cylinder under consideration,No. 5. The point of tangency between the surface circle…
Geometry, Descriptive
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