| 書目名稱 | Geometrical Geodesy | | 副標(biāo)題 | Using Information an | | 編輯 | Maarten Hooijberg | | 視頻video | http://file.papertrans.cn/384/383654/383654.mp4 | | 概述 | Practical approach of the topic | | 圖書封面 |  | | 描述 | Surveying a Century Ago As it was based on the principles of geometry and trigonometry, surveying may be may be looked upon as a branch of practical mathematics. Hence, it was necessary that land surveyors and hydrographers should have a fair general knowledge, not only of these subjects, but also of all the subjects comprised by the term mathemat- ics. In addition, the knowledge of mathematics required in ordinary chain surveying and levelling was not very extensive but in geodetical work, the highest mathematical ability and great organising power were required for a proper conception and supervision of the operations (Threlfall, 1940). Only small area of a few hundred square kilometres can be accurately mapped and surveyed without a frame- work, since no difficulty is encountered because of Earth-curvature. In the past, especially in hydrography due to the type of work, surveying was carried out on the principles of ordinary practice, but in a very rough man- ner, rapidity of execution being of paramount importance, the permissible error was sometimes large. The relative positions of the main surface features were obtained by aid of portable instruments, such as sextants and lea | | 出版日期 | Book 20081st edition | | 關(guān)鍵詞 | Conformal projections; Fundament; Geoids; Parallel computers; Similarity transformations; Zone systems; ge | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-540-68225-7 | | isbn_softcover | 978-3-642-43336-8 | | isbn_ebook | 978-3-540-68225-7 | | copyright | Springer-Verlag Berlin Heidelberg 2008 |
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