Elements of military sketching and map reading (1917)
Barnes, John Bryson, 1876- · New York : D. Van Nostrand · leaf 39
30 ELEMENTS OF MILITARY SKETCHING … ORIENTATION 31 the direction line on the map do not coincide the mapis not oriented. Resection is a method of locating unknown pointsby taking bearings of two or more known points (Fig,18). You think you are on some point of the roadA—B, and vou want to locate your exact position on
Military topography · Maps, Military
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