期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B2
页码：703-708
出版社：Copernicus Publications
摘要：Managing oceanographic data with traditional geographical information systems (GIS) is a difficult task because these systems have been primarily designed for land-based applications. The main problem is that the nature of objects at sea is completely different from the nature of objects found on the land: at sea most objects are represented by unconnected points that can have three- dimensional coordinates, the datasets have 'abnormal' distribution and the objects tend to change position over time. We propose in this paper using a spatial model based on the three-dimensional Voronoi diagram (VD) to handle topological relationships between objects. We present the main properties of the 3D VD, algorithms to construct and modify it, and show how some 3D GIS operations are greatly simplified when a spatial model is built upon
关键词：GIS; Three-dimensional; Modeling; Oceanography; Triangulation; Algorithms; Data Structures; Dynamic
