Plane Surveying |
Contents
Introduction ARTICLE 1 Definitions 1122 | 1 |
Purposes of Surveys 4 Instruments Chapter II Measurement of Distances 5 Length of a Line | 3 |
Tapes | 6 |
Copyright | |
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Common terms and phrases
accuracy adjustment algebraic sum alidade azimuth backsight Base Line batter boards bench mark bubble tube celestial equator celestial sphere clamp closed traverse computed contour correction Cosin Cotang deflection angle determined DIETZGEN Diff dist dumpy level east edge elevation equal error of closure established field notes guide meridian horizontal cross hair horizontal distance illustrated in Fig initial point instrument intersection intervals latitudes and departures length and bearing leveling screws line of sight longitude magnetic bearing magnetic declination measured Nautical Almanac objective lens observation obtained parallel of latitude photographs plane table plat plate plotted Polaris position principal meridian range line reference line right ascension rod intercept rod reading set-up point shown in Fig Sine slope stake stadia distance star steel tape Tang tangent telescope tion township corners transit is set traverse line usually vernier vertical angle vertical axis vertical distance zero