Research And Implementation Of Spatial Analysis Technology And ROAMOSII

Spatial Database is the kernel software of GIS (Geography Information System), database of CAD/CAM, VLSI system and so on. Spatial Database can supply high-powered capability of storing and managing spatial object, well capability of organizing and restricting spatial data, optimized spatial analysis operation function. STZWARE is a two and three dimension spatial analysis software based on Realms math model developed by NUAA, and the two-dimension subset of this software defines spatial data types on 2-dimension discrete grid, such as point set (PrivPoints), line set (PrivLines) and region set (PrivRegions), and implements attribute operation functions of these 3 types and topology analysis functions among these 3 types. AMOSII is an object database developed by Uppsala University Sweden. This paper implements spatial analysis prototype system ROAMOSII after analyzed STZWARE's two-dimension subset and AMOSII database. Using Object Oriented thinking, we package STZWARE's two-dimension subset by JAVA to form spatial analysis module, model spatial object types in AMOSII database to form data storage module and form spatial object edit module using JAVA. We integrate these 3 modules to form a complete 2-dimension spatial analysis system. This system has capability of storing large amount of spatial data, editing spatial object keeps the STZWARE's two-dimension subset's fast spatial analysis capability and completes the experiment of integrating STZWARE's two-dimension subset and OODBMS. Based on the analysis of STZWARE's two-dimension subset, this paper does research on topology relations among uncertain spatial region objects relay on extended 9-intersection model and proposes a method of using the combination of implemented topology analysis functions among certain spatial region objects to implement topology analysis functions among uncertain spatial region objects. At last, this paper discusses the implement of spatial database.