Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 285
e By means of the stadia it is possible to determine the distance anddirection between two points, as well as their relative levels, at one settingof the instrument. 268 DESCRIPTIVE GEOMETRY [XIII, § 220 known point of as many points as can readily be seen from thisposition. The instrument is then… … Fig. 249 drawn through corresponding heights, interpolation being usedfreely. As an example of the type o problem that arises in contourwork, let the contours in Fig. 249 be given. Let it be requiredto show the cut and fill necessary to carry a level road alongthe face of the hill as shown,…
Geometry, Descriptive
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