度量参数与空间关系描述的研究-《计算机技术与发展》

文章信息/Info

Author(s):: CHEN Xue-gong; ZHANG Chi-wei; ZHANG Wen-yi; ZHANG Ting; Sch. of Information Science and Engineering, Central South University

Keywords:: metric parameters; 9 - intersection model; topology; spatial relations

摘要:: 度量参数作为对9交集拓扑关系模型所识别的关系种类的细化，在判断一种几何结构是否匹配一个空间术语时，相比于单独使用拓扑，它能提供更精确的描述。文中分析了9交集模型在实际应用中的不足以及目前的度量参数不支持带孔面对象的缺点，定义了三对细化的面面拓扑关系，并提出了一组支持带孔面对象的面对象间空间关系度量参数。这些度量参数加强了面对象间空间关系的描述．可广泛应用于空间查询和空间分析中

Abstract:: The metric parameters are expressed as refinements of the categories identified hy 9 - intersection, a model for topological spatial relations, and provide a more precise measure than does topology alone as to whether a geometric configuration matches with a spatial term or not. Some shortages of the 9 - interaction model on practical applications and the disadvantages of metric parameters at present that no support area object with holes are pointed out, 3 pairs of refined area - area topological relations are defined,and a set of metric parameters of area - area topological relations are proposed, the parameters can support area object with holes. The description of area - area spatial relations are enhanced by these metric parameters, and the parameters are widespread applied on spatial query and spatial analysis