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。
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.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2011年第10期1144-1148,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40901186
40730527)
国家863计划资助项目(2009AA12Z228)
地理空间信息工程国家测绘局重点实验室开放研究基金资助项目(201027)
