Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 213
s. On theH projection, theminor axis will beprojected in a lineparallel to V, atba. The majoraxis is perpendicu-lar to ft^a*, at itscenter, and itslength is equal too6 as given onthe V projection.The H projectionof the circle of con-tact can be com-pleted by drawingan ellipse through ahdJh^e^. The… … VIII, § 174] CURVED SURFACES 197 The elements of sight of the cone can now be drawn througho and tangent to the circle of contact. If carefully drawn, theelements of sight, the circle of contact, and the projection ofthe sphere will pass through a common point. 174. To Draw the Projections of a…
Geometry, Descriptive
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