Syntactic Characteristics and a Smart Construction Mechanism for Thematic Map Symbols

作者：Fei ZHAO,Qingyun DU,Fu REN,Guizhi WANG

摘要：The construction of thematic map symbols is a very complex and intellectually demanding process,but thematic symbols can be automatically generated and easily shared on the web using the syntactic structure of semantic symbols.In this paper,the symbol types,inner structure,and design pattern are discussed.A syntactic construction theory based on letter (thematic maps primitive)-word (single thematic symbol)-sentence (combined symbols or complex symbols) structure model is proposed to automate the construction of thematic map symbols.As a result of this research,symbols can be defined using cartographic primitives which are arranged according to syntactic principles.A semiotic model and word-centered construction theory can be integrated into interactive cartography as represented by the technology of Internet.Finally,the concepts and schema of this theory are discussed,and some examples are presented based a web thematic cartographic system to verify its utility.

发文机构：School of Resource Environment and Earth Science School of Resources and Environmental Science National Geomatics Center of China

关键词：SYNTAXTHEMATICmapSYMBOLLINGUISTICSwebCARTOGRAPHYconstruction

分类号： P[天文地球]