地图制图专家知识对地理信息符号化过程的控制

针对纸质地图数字化得到地理信息(空间数据)的过程中存在地图信息损失的问题,阐述了产生这种损失的原因。数字化后得到的地理信息是各种GIS应用系统的重要数据源,在GIS应用中需要把这些地理信息重新再现成地图。为了得到较好的地图显示效果,有必要将数字化后损失的地图信息在从地理数据到地图符号化的过程中进行补偿。论述了在符号化过程中如何充分利用地图制图专家的多年知识和经验,将用自然语言表达的不确定性的专家知识形式化,以此来控制整个符号化的过程,达到改善地图显示效果的目的。

Controls of Cartography Expert''''s Knowledge in the Process of Map''''s Symbolization

In digitalization from map to geographic information(spatial data),it will lose map information,this paper discusses the reason.As the result of digitalization,geographic information is a very important data source.It is necessary to visualize geographic information in GIS application.In order to get excellent map vision effect,the lost map information in digitalization should be restored in the process of visualization.And then the dissertation illustrate how to control the visualization by cartography expert's knowledge formamized but expressed with uncertain human's language.