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《Journal of Hohai University(Natural Sciences)》 2008-03
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Reasoning and calculation of spatial direction relationship between complex objects based on Voronoi diagram

YANG Yong-qing1,FENG Jun2,WANG Zhi-jian2(1.Key Laboratory of Coastal Disaster and Defence of Ministry of Education,Hohai University,Nanjing 210098,China;2.College of Computer and Information Engineering,Hohai University,Nanjing 210098,China)  
Spatial relationships between complex spatial objects are studied on the basis of past research achievements.A reasoning model based on the spatial direction relationships of Voronoi diagrams is presented and its algorithm and processes are described in detail.It is demonstrated from a case study that the model is practical,accurate and valid.This model,in which the source object and reference object don't have to be distinguished,is reflexive and is not influenced by the shape,size,location or distance of objects.It is easy to combine the model with a topology model based on a Voronoi diagram and form a uniform reasoning model.
【Fund】: 国家自然科学基金(60673141)
【CateGory Index】: P208
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