Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 158
ill be parallel to H(or V), and hence will be projected on H (or V) in its truelength. This being the greatest possible projection of anydiameter, it must form the major axis of the ellipse which is VII, § 128] CURVED LINES 141 the required projection of the given circle. By the same token,that… … Fig. 139 In Fig. 139, let it be required to draw the projections of acircle lying in the plane X, with its center at o. Rabatte theV trace, X Z, and the center o, into H (§§ 91 and 92). Drawa circle of the required size with its center at o*. Draw thediameters which are parallel and perpendicular…
Geometry, Descriptive
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