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Research for GIS Map Symbol Lib Exchange Format
Li Qingyuan, Su Deguo
Chinese Academy of Surveying & Mapping, Beijing, R.P.C., 100083,
Email: liqy@casm.ac.cn,
sdg@casm.ac.cn
Abstract Symbolic presentation is one character of GIS. Drawing symbol in GIS have been developed from early “Function Method” to current ”Symbolic Library Method”. By common effort of GIS community, except for symbol data, all other data such as attribute data, spatial data (even topological information) all can be exchanged from one GIS platform to another. The symbolic spatial data, when transferred from one platform to another, often lose at all. The symbol data always need to configure again, sometimes so much as all symbol library need make again. It brings inconvenient to users, and is a barrier to GIS application and popularization. This paper discuss necessity, possibility and technique path to exchange symbol library data in different GIS platforms, and then give a draft of symbolic library standard exchange format based on XML Schema. We hope this exchange format developing to a part of ISO TC211.
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