Li Qingquan, Li Deren. Data Structure in 3D Geographic Information Systems[J]. Geomatics and Information Science of Wuhan University, 1996, 21(2): 128-133.
Citation: Li Qingquan, Li Deren. Data Structure in 3D Geographic Information Systems[J]. Geomatics and Information Science of Wuhan University, 1996, 21(2): 128-133.
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Data Structure in 3D Geographic Information Systems

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  • In this paper the dimensions and visualisation of spatial data are intro-duced.Two kinds of spatial data structures in 3D GIS are discussed.One is based on surface representation and the other is based on solid representation.Included are:boundary representation(BR),constructive solid geometry(CSG),non-uniform reasonable B-spline surface(NURBS),octree and tetrahedral irregular network. The characteristics and possible applications of these structures are also analysed.
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