【摘要】 空间关系理论研究是当前GIS界重点研究的前沿课题之一,但就目前研究成果看,空间关系理论中的拓扑关系和方向关系的理论研究多采用独立的描述模型,影响了空间推理和空间表达的精度。该文在分析拓扑关系和方向关系描述模型的基础上,提出将拓扑关系和方向关系定性表示相结合的TD模型,并用实例说明该模型能较全面地描述空间对象的空间关系。更多还原

【Abstract】 The theory research on spatial relationships has gotten considerable attention in the field of GIS.There are many researches on this field.But,at present,the topological and direction relations’ reasoning model usually uses separateness in the theory research on spatial relationships,affects the spatial reasoning’s precision and spatial expression.Based on the representation model of topological relations and direction relations,this paper puts forward the new model:TD model,in which the topological and direction relations are assembled,and the example shows that the TD model can all-sided describe the spatial relations of spatial objects.更多还原