Elements of Surveying |
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Elements of Surveying Raymond Earl Davis,Francis Seeley Foote,William Horace Rayner Snippet view - 1930 |
Elements of Surveying Raymond Earl Davis,Francis Seeley Foote,William Horace Rayner Snippet view - 1930 |
Common terms and phrases
adjustment altitude azimuth backsight and foresight bearing bench marks boundaries bubble calculated celestial equator celestial sphere clamped closed traverse compass computed corners correction cross-hair cross-section cut or fill declination deflection angles described in Art determined difference in elevation direction dumpy level earth employed ephemeris equator error of closure established eyepiece feet foresight distances given graduated Greenwich head chainman hence horizontal angles horizontal axis horizontal distance hour angle instrument latitudes and departures length level tube line of sight longitude magnetic magnetic bearings mean method objective observed offsets parallel perpendicular plane planimeter plotted Polaris pole position precision probable error protractor refraction right ascension rod reading rotated scale side slope stake solar stadia interval star surveyor surveys systematic error taken tangent screw tape telescope tion transit is set transit lines transit stations triangle turning points usually values vernal equinox vernier vertical angles vertical axis wyes zero