本体驱动下的地图符号共享方法研究

针对地图符号模型与异构地图符号资源不兼容，难以实现在网络环境下多源异构地图符号的集成与互操作的问题，提出了一种基于本体的地图符号概念模型。通过定义符号的类、属性、关系和约束条件，该模型实现了对符号概念及关系的形式化表达和符号本体的构建。在此基础上，采用SOA软件架构思想，建立了基于Web服务的地图符号分布式共享框架结构，实现了符号的跨平台调用。本研究基于XML Web Services的地图符号与ArcGIS Engine之间的跨平台调用，进行了本符号共享方法的可行性试验。试验结果表明，该方法可以实现网络环境下多源异构地图符号的灵活开放集成和互操作，并且有效地保留了地图符号的语义信息。

Research on ontology driven map symbol sharing method

Aiming at the incompatibility between the map symbol model and the heterogeneous map symbol resources,it is difficult to realize the integration and interoperability of multi-source heterogeneous map symbols under the network environment.This paper proposes a map symbol conceptual model based on the ontology.By defining the classes,attributes,relationships and constraints of symbols,the model realizes the formal expression of symbolic concepts and relationships and the construction of symbol ontology.On this basis,based on the SOA software architecture idea,a map symbol distributed sharing framework structure based on Web service is established to realize cross-platform calling of symbols.Based on the cross-platform calls between XML Web Services map symbols and ArcEngine,the feasibility experiment of this symbols sharing method is carried out.The results show that the proposed method can realize the flexible and open integration and interoperability of multi-source heterogeneous map symbols under the network environment,and effectively preserve the semantic information of map symbols.