In recent years, most virtual 3D city models have been realised as purely graphic or geometrical models, neglecting the semantic and topological aspects. Thus, these models could almost only be used for visualization purpose but not for thematic queries, analysis tasks, or spatial data mining ...
User-generated data may be the answer to the GPS navigation industry's problem of outdated maps on user devices. According to Ed Parsons, Google 's geospatial technologist, the reason users encounter inaccurate road layouts and landmark placements on their GPS devices is that it takes a long ...
NITF is abbrevation of National Imagery Transmission Format, whihc is a raster format standard defined by NITF Standards Technical Board. Geospatial analysts in different industries use NITF to store multiple types of data in a single file, including imagery, vectors, annotation, and complex me ...
WCS is the such an important service specification as WFS and WMS, which is familiar to us. Please read and understand the following sections: The Web Coverage Service（WCS） supports electronic retrieval of geospatial data as Coverages-- that is, digital geospatial informa ...
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