摘要
在对几种主要的基于投影的空间方向关系形式化描述模型进行分析的基础上,对方向关系重新进行了定义,并针对西安市实际地图数据的特征,设计并实现了基于方向关系矩阵模型的空间方向查询,取得了比较好的查询效果.
Several main kinds of spatial directional relation formal description model based on projection was analyzed. Then directional relationship was redefined. According to the features of Xi＇an actual map data, a spatial direction query based on direction-relation matrix model was designed and developed, and experimental result was satisfying.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2009年第4期46-49,74,共5页
Journal of Zhengzhou University of Light Industry:Natural Science
基金
国家自然科学基金项目(40471102)
关键词
空间方向关系
方向查询
投影模型
方向关系矩阵模型
spatial direction relations
direction query
projection model
direction-relation matrix model
