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中文摘要：
分析了GIS的3种典型符号模型不利于构建地图符号与符号间难以共享的原因,引入了PB符号模型,提出了符号数据共享与符号渲染功能共享相结合的符号共享机制,设计了3类GIS点状符号与PB符号间的映射方法,实现GIS点状符号共享,并利用实验对其进行了验证。
英文摘要：
This paper aims at point symbol sharing among different GIS platforms.First,three classic GIS point symobl models were compared.The reasons that symbols difficult to share were analyzed.Second,a symbol model named ＇PB＇ was introduced to propose a symbol sharing mechanism,which is the combination of data and rendering sharing in symbols.Final,mapping methods between three GIS point symbols and PB symbol were designed and experiments validate their feasibility.
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