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1、274Vol. 27, No. 41998M11ACT A GEODAETICA et C ARTOGRAPHIC A SINICA Nov. , 1998bWQO*李清泉李德仁(qS/v,q, 430070)RESEARCH ON THE CONCEPTUAL FRAME OF THE INTEGRATIONOF 3D SPATIAL DATA MODELLi Qingquan, Li Deren(Wuhan Technical University of Surveying and Mapping , Wu han, 430070)Abstract In this paper, after
2、 a summary of 3D spatial data model, the characteristics of 3D spa-tial data and the necessary of model integration are analyzed. Th ree spatial data models are pre-sented for 3D application in fields such as urban, geology, marine, etc. They are the integratedmodel based on TIN and CSG ( Constructi
3、on Solid Geometry) , which is used in 3D urban model-ing; The hybrid data model based on Octree and TEN( Tetrahedral Netw ork) , which is used in ge-ology, marine, etc; And, the general 3D spatial data model based on vector and raster integra-tion.Keywords Th ree-Dimensional, Spatial Data M odel, In
4、tegrationK1本文对三维空间数据模型的研究与发展进行了总结,分析了三维空间数据的特点以及数据模型集成的必要性。结合三维 GIS在城市、地质、海洋等领域的具体应用,提出三种三维空间数据模型集成:用于城市三维构模基于 TIN和 CSG的集成模型;用于地质,海洋等领域的基于八叉树和四面体格网的混合模型;具有一般性的矢量栅格集成的三维空间数据模型。1oM三维空间数据模型集成s| TP309. 12*l: 1998-02-18,: 1998-06-02。b,3, 33,q,pV。SE1S(I|: 49631050, 49601017)。1三维空间数据模型发展现状Hunter( 1978)4QMB
5、HW,T( Oc-tree)VE#CADdu,Vw/?5?5。:B。BHHu,Vw/?5?5。Z_lZ_,P8S。:8V。BS,3VVUS。:v。=3KlVs。3V( DSM )T INVUS。igZ_,VVU/S。:。8B8S,38VUS,VLb,(d(。:y。8EVUKlVs。38( DSM )T ENVU8S。igZ_,VVU/8。:8。Bs,L=1V%s,8SVsLb,(d(;9V3,。N,SVYVSF,!57vF,558F。BbWS+、l;OE;?VX=GIS|#AUVUS?。bWSs,T9XT(nD2, 10)$,4BOEbW,m2U。,bWSsv,( 0D)、L( 1D)、( 2
6、D)8( 3D)。S、vlV。ScbWUS;SvlcL、8S;ScS+1+1W,7OcOE。A,-$?Z,-B8,L,E328 27,OTIN, T EN, Grid, CSGHVU。L=14BaS,V7LCS+VU。m2OEbWFig. 2 Vector and raster integrated 3D data model6总结bWGIS5,NvT,。+Z,4BbWS。yN,ZECGIS?Z1Z_。4bWZE。BgTINCSG;=,Z58;BOEbW,iOAUsLT。T?ZBWindows N T,Visual C+ +OpenGL7?GIS,idbWT。7参考文献1,b.BGIS., 1
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