Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 87
Fig. 110. Fig. ill. Example 6 (Fig. 111). A torus, cut by two planes parallelto V. The X section, wholly on the hack of the surface, isinvisible. The FTsection, entirely on the visible part of thetorus, is wholly visible. The true, size of each section appears at once. 66 DESCRIPTIVE GEOMETRY [IX,… … Fig. 112. two parts. The visibility of the curves should be evident froman inspection of the position of the cutting planes. 87. Developments. The development of a solid bounded byplane faces consists of a series of polygons of the true sizesand shapes of the various faces of the solid, so…
Geometry, Descriptive
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