Query Of Spatial Data Based On Information Grid

The Information Grid is a new web application technique. It overcomes some questions about web application today and supplies high quality service of Web GIS. The paper studies the basic conception,supporting technique,systematic structure and critical techniques about the spatial data grid query. Following are the major content and innovation points: 1) This paper introduces the manner of index by spatial data and improves the algorithm based on quadtree and R_tree. 2) This paper introduces the mathematical model of spatial data analysis and studies the theory based on MBR and the method of developing spatial analysis efficiency. 3) This paper establishes the spatial database table and the index table. 4) This paper builds one experimental system of spatial data grid query on the platform of C# and OGSI..NET.