摘要： 为弥补现有方法在处理3D空间方向关系方面的不足，将3DR44方向关系模型和距离关系相结合，提出一种新的关系表示模 型——3DR44-4d模型。该模型将空间划分成158个方位空间块，能够表示并区分2158种复杂的空间方位关系。研究3DR44-4d模型的动态方位邻接关系，利用方位邻接关系对大量复杂动态方位关系信息进行检验、预测和择优。实验结果表明，该模型可以增强空间数据库对3D方位关系的表示及分析能力。
关键词:
空间数据库,
方位关系,
距离关系,
区域关系,
交集序列,
动态邻接关系
Abstract: To remedy the deficiency of the existing methods about the 3D direction relations, a new relation representation model called 3DR44-4d model is presented. The space is divided 158 orientation-space and the 2128 spatial orientation relations can be represented and disqueced. in the 3DR44-4d model. The dynamic adjacent relations of the 3DR44-4d are studied. The massive complex dynamic orientation relations can be checked. Application results show that the model can enhance the ability to represent the 3D orientation relation of the spatial database.
Key words:
spatial database,
orientation relation,
distance relation,
region relation,
intersection sequence,
dynamic adjacent relation
中图分类号:
郝晓红, 李松, 张丽平. 3DR44-4d方位关系表示模型[J]. 计算机工程, 2012, 38(3): 57-59.
HAO Xiao-Gong, LI Song, ZHANG Li-Beng. Representation Model of 3DR44-4d Orientation Relation[J]. Computer Engineering, 2012, 38(3): 57-59.