关键词: 地图符号, 符号本体, 地图符号模型, 符号共享, Web服务

Abstract: 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.

Key words: map symbol, symbol ontology, map symbol model, symbol sharing, Web service