The Study for Multisource Geospatial Vector Data Integration and Fusion
Li Guo · Journal of Zhengzhou Institute of Surveying and Mapping · 2007
To meet the demands on geospatial data,management and technology that produce multisource geospatial vector data are presented.In this paper,we put forward five expressional forms for geospatial data,and conception and relationship of vector data integration and fusion.Then,we discussed basic principles and measures of vector data integration and fusion: data model integration,semantic integration,unifying projection and coordinate system.Also,we described three means to realize data integration: data format exchange,data interoperability,direct data access.At last,we discussed vector data fusion measures: geography element geometry position fusion and semantic fusion.By this,difference of geography element data description and attribute were eliminated.