Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 220
ave axes that in-tersect, the point ofintersection may beused as the center ofa series of cuttingspheres. Each ofthese spheres will cuta circle from each ofthe surfaces and themtersections of these circles give points on the required line ofintersection. In Fig. 185, let the vase form and cone of… … Fig. 185 202 DESCRIPTIVE GEOMETRY [VIII, § 177 it will cut a circle shown on elevation at 6^. These circlesintersect at two points x and x, which coincide on the elevation.On plan, the circle cut from the vase is shown at a;*6*a;*(f*. The points on the required line ofintersection, x and x, are…
Geometry, Descriptive
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