3D-GIS中方向关系描述及其推理  

Direction relation description and its qualitative reasoning in 3-dimensional GIS

作　　者：刘新[1] 刘文宝[1] 

机构地区：[1]山东科技大学地球信息科学与工程学院,山东青岛266510

出　　处：《测绘科学》2007年第3期23-25,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金资助(No40471109);山东省自然科学基金资助(No03BS148)

摘　　要：方向关系是描述一个物体与另一个物体的相对位置关系。现有文献主要研究二维空间方向关系的描述和定性推理,二维空间中方向关系的描述和推理相对比较完善。本文采用投影方法给出三维空间方向关系描述模型,研究了单方向关系的推理,在此基础之上给出了单方向与多方向关系的定性推理,以及多方向关系与多方向关系间的定性推理。最后研究单方向关系定性推理的一些规律。The direction relation describes relative position between objects in GIS. The direction relation description and its reasoning are mainly studied in 2-dimension space, and they are relatively mature. The direction relation description model based on the projection theory is built in 3-dimension space in this paper firstly. Then the qualitative direction relation reasoning between single direction relation and single direction relation, single and multi, multi and multi are studied in 3-dimension space as well. Finally, some laws in the qualitative direction relation reasoning between single direction relations are studied.

关 键 词：三维空间 方向关系 方向关系推理 

分 类 号：P282[天文地球—地图制图学与地理信息工程]