為解決企業(yè)分布式多源異構(gòu)地理空間數(shù)據(jù)互操作的瓶頸問(wèn)題，設(shè)計(jì)了基于WebServices 的四層多源異構(gòu)空間信息集成框架。利用Web Services 技術(shù)，OGC 地理信息服務(wù)實(shí)現(xiàn)規(guī)范，和W3C 標(biāo)準(zhǔn)的可縮放矢量圖形成像模型(SVG)的集成，通過(guò)構(gòu)建空間數(shù)據(jù)轉(zhuǎn)換服務(wù)集成器，在用戶(hù)和服務(wù)之間提供一種透明的松耦合，跨越系統(tǒng)底層的異構(gòu)性，進(jìn)行異構(gòu)空間數(shù)據(jù)的互操作和顯示，從而實(shí)現(xiàn)了多源異構(gòu)地理空間信息集成與共享。在國(guó)家地震網(wǎng)絡(luò)計(jì)算應(yīng)用系統(tǒng)（SECAS）建設(shè)中，基于以上框架采用.NET 平臺(tái)進(jìn)行設(shè)計(jì)并得到了初步應(yīng)用。
關(guān)鍵詞：Web 服務(wù)；異構(gòu)空間信息；集成框架；地理標(biāo)識(shí)語(yǔ)言；可伸縮矢量圖形
Abstract：To deal with the bottle-neck of enterprise distributed multi-source heterogeneous
geographic spatial data’s interoperating, the four-tier integration framework of multi-source
heterogeneous spatial information based on web services is designed. Through the integration of web services technology, the geographical information service criterion of OGC and the scalable vector graphics model (SVG) of W3C, the integrated device of spatial data
translating services is constructed, which can realize the heterogeneous spatial data’s
interoperating and showing by spanning the system’s heterogeneous and providing a kind of transparent loosely coupling relation between the users and the servers, lastly multi-source
heterogeneous geographic spatial information can be integrated and shared. It is primarily
designed and applied in the State Earthquake Computing Application System (SECAS) based
on the above framework and .NET platform.
Key words：Web Service; Heterogeneous Spatial Information; Integration Framework; GML;
SVG