GIS点状符号共享研究_陈泰生,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。-GIS point symbol Sharing _ Chen Taisheng analyzed gis three typical symbolic model is not conducive to building a map between symbols and symbols difficult to share the reasons for the introduction of pb symbolic model proposed symbol data sharing and shared symbol rendering capabilities combined symbol sharing mechanism designed three types of mapping methods gis point symbols and symbol pb between realized gis point symbol sharing, and use of experimental verification was carried out.