基于面状要素拓扑关系的数据匹配技术研究

Research on area features' data matching technology based on topology relations

数据匹配技术是空间数据集成与融合中的关键技术。本文根据9交模型中的面状拓扑关系的描述,对面积叠置率进行了几何度量上的定义,提出了基于面积迭置率的数据匹配思路,实现了面状要素一对一、多对一、多对多的数据匹配。最后,以面状目标为研究对象,以城市居民地的大比例尺数据为例,对基于面积迭置率的面状要素数据匹配算法进行了试验与分析。

Data matching technology plays a key role in geospatial data integration and fusion. In this paper, we define the rate of overlapped area by geometry measurement based on the description of area topology relations in 9-intersection model. Then, we put forward a way of data matching based on the rate of overlapped area, and realize area features matching of 1 ： 1, m： 1, m： n. At last, we take large scale residential area data as an example to test the algorithm of data matching for area features based on the rate of overlapped area, and bring forth the relevant results.