爱学术-智能检索

Topographic Stadia Surveying -- A Manual With Reduction Tables and a New Type of Reduction Diagram

地形体育场测量

ISBN：9781332071135，出版年：2016，中图分类号：O4

Telescope Cross-hairs, Adjustable or Fixed. The telescope to be used in stadia work is equipped with three horizontal cross-hairs. The spacing of these cross-hairs may be either adjustable or fixed. For general use the fixed cross-hairs are preferred by most engineers and surveyors, though they are not without their disadvantages.When the cross-hairs are adjustable frequent testing of the instrument rating may be necessary.When the cross-hairs are fixed (this term being here use in the sense of permanent in their relative positions, i.e., non-adjustable), the instrument's rating as reported by its maker should be carefully tested before any surveys requiring the limit of attainable accuracy are undertaken.Tachymetry. Tachymetry is that branch of surveying which deals with the rapid measurement of distances, as, for instance, the determination of distance from an instrument by sighting with its telescope to a rod.Telemeter. The term telemeter may be applied to any telescope equipped with cross-hairs for measuring distance, or equipped with micrometer screw or other device for accurate determination of the length of rod subtended by an angle of known amplitude.

Burn down chart Graph (abstract data type) Newmark's influence chart Alluvial diagram Overlay graph Forming limit diagram Voronoi diagram Gantt chart Diagram Map reduce

Classics in Cartography -- Reflections on influential articles from Cartographica

测量学重要文章评论集

Wiley Martin Dodge

ISBN：9780470681749，出版年：2011，中图分类号：P2

Classics in Cartography provides an intellectually-driven reinterpretation of a selection of ten touchstone articles in the development of mapping scholarship over the last four decades. The ‘classics’ are drawn exclusively from the international peer-review journal Cartographica and are reprinted in full here. They are accompanied by newly commissioned reflective essays by the original article authors, and other eminent scholars, to provide fresh interpretation of the meaning of the ideas presented and their wider, lasting impact on cartographic research. The book provides an equal balance of influential articles from the past and current commentaries which highlight their impact and current context. Read in combination the original ‘classic’ articles and these new reflective essays demonstrate how cartography works as a powerful representational form and explores how various different aspects of mapping practice have been conceptualized by an influential set of academic researchers. Collates ‘classic’ articles from four decades of the journal Cartographica Brings key articles up-to-date with contemporary interpretative essays by the leading scholars in mapping research Themes covered are the epistemological of mapping practice, the ontological underpinnings of cartographic representation, and the contested societal implications of maps Evaluates the progression of the field of cartographic research and demonstrates how new theoretical ideas originate, develop and circulate Provides a signpost for students and new researchers on the key articles in cartography to read and reflect upon

Critical cartography History of cartography Influence diagram Newmark's influence chart Cartography Topology mapping Geographic Mapping Thematic map Terrain cartography Graphic Novels as Topic