Developing a National Height Database
نویسنده
چکیده
In November 2001 the Ordnance Survey, Britain’s National Mapping Agency, launched the first release of OS MasterMap, the definitive digital map database for Great Britain. The initial data within OS MasterMap consisted of topographic points, lines and polygons, stored as 2-dimensional features in an object-oriented database. This paper outlines the structure of OS MasterMap; the current height data and height products captured and supplied by Ordnance Survey; the research undertaken into new methods of height data capture; and describes the 3D data which Ordnance Survey may incorporate into the data in future.
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