单词 | viewshed |
释义 | viewshedn. Originally and chiefly U.S. The view of an area from a specific vantage point; (in later use also) a computer generated map or model of this. ΚΠ 1970 Oakland (Calif.) Tribune 7 July 4/1 The new route through the park will take the line out of sight about 90 per cent of the park visitors, and cut ‘viewshed’ intrusion to 25 per cent. 1989 Mountain Democrat (Placerville, Pa.) 8 Sept. a5/1 How will you protect the view-shed and the cultural resources? 2003 R. Tomlinson Thinking about GIS 263 Generating a viewshed involves manipulating a digital elevation model (DEM) to identify areas of the terrain which are visible from one or more viewpoints. 2012 Western Hist. Q. 43 77 I work with..landscape historians who compare historic photos to contemporary scenery scrutinizing the impact of modern development on our historic viewshed. 2016 Current Archaeol. Aug. 17/2 Viewshed-analysis highlights how most [siege-castles] were built quite deliberately just within sight of their prey. This entry has been updated (OED Third Edition, September 2016; most recently modified version published online December 2021). < |
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