翻訳と辞書 Words near each other ・ Position circle ・ Position Correction ・ Position effect ・ Position error ・ Position fixing ・ Position Ignition ・ Position line ・ Position of Lebanon in the 2006 Lebanon War ・ Position of the arms in ballet ・ Position of the media on the Armenian Genocide ・ Position of the Sun ・ Position of trust ・ Position operator ・ Position paper ・ Position player ・ Position resection ・ Position sensitive device ・ Position sensor ・ Position tolerance ・ Position weight matrix ・ Position-effect variegation ・ Position-independent code ・ Position-sensing hydraulic cylinder ・ Positional advantage ・ Positional alcohol nystagmus ・ Positional asphyxia ・ Positional game ・ Positional good ・ Positional notation ・ Positional Sequencing Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Position resection ： ウィキペディア英語版 Position resection Resection is a method for determining an unknown position (position finding) measuring angles (and distances) with respect to known positions. Measurements can be made with a compass and topographic map (or nautical chart)〔Mooers Jr., Robert L., ''Finding Your Way In The Outdoors'', Outdoor Life Press (1972), ISBN 0-943822-41-6, pp. 129–134〕〔Kals, W.S., ''Practical Navigation'', New York: Doubleday & Co. (1972), ISBN 0-385-00246-7, pp. 43–49〕 or with a total station and benchmarks. ==Resection versus intersection== Resection and its related method, ''intersection'', are used in surveying as well as in general land navigation (including inshore marine navigation using shore-based landmarks). Both methods involve taking azimuths or bearings to two or more objects, then drawing ''lines of position'' along those recorded bearings or azimuths. When intersecting lines of position are used to fix the position of an unmapped feature or point by fixing its position relative to two (or more) mapped or known points, the method is known as ''intersection''.〔Mooers, pp. 129–132〕 At each known point (hill, lighthouse, etc.), the navigator measures the bearing to the same unmapped target, drawing a line on the map from each known position to the target. The target is located where the lines intersect on the map. In earlier times, the ''intersection'' method was used by forest agencies and others using specialized alidades to plot the (unknown) location of an observed forest fire from two or more mapped (known) locations, such as forest fire observer towers.〔Mooers, pp. 130–131〕 The reverse of the ''intersection'' technique is appropriately termed ''resection''. Resection simply reverses the intersection process by using ''crossed back bearings'', where the navigator's position is the unknown.〔Mooers, p. 132–133〕 Two or more bearings to mapped, known points are taken; their resultant lines of position drawn from those points to where they intersect will reveal the navigator's location.〔Mooers, p. 132–133〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Position resection」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.