一种基于符号指令的地图显示方法  

Method of map display based on symbol command line

作　　者：葛文[1] 张小朋 郭建忠[1] 蔡畅[1] 

机构地区：[1]信息工程大学测绘学院 [2]61081部队

出　　处：《测绘科学》2011年第6期245-247,共3页Science of Surveying and Mapping

基　　金：国家科技支撑计划课题(2007BAH16B03)

摘　　要：地理空间数据的多源性、地理要素目标的多样性客观上给地图显示带来了困难,目前地图显示常用的程序法和符号库法都难以解决此问题。针对此问题,本文从模拟绘图动作的角度出发,引入动词、形容词、名词的概念,形成一个主、谓、宾等语法组成的符号语言体系,完成地图符号的定义;通过给定符号化过程中涉及的各项动作及参数,符号指令以命令字为单元完成地理要素的符号化。The multi-source of geographic spatial data and the variety of geographic object bring difficulties to map display. The present program and symbol library map display methods cannot solve this problem perfectly. Therefore, in this paper, the conceptions of verb, adjective, noun were introduced to build a symbol language system composed by verb, adjective, noun expression, which defines the map symbols by simulating plotting action. By giving the actions and parameters of the map symbolization process, the symbol command line separated by command character symbolization could accomplish the symbolization of geographic feature.

关 键 词：符号指令 符号语言 地图显示 地理空间数据 多源性 地理要素目标 多样性 

分 类 号：P28[天文地球—地图制图学与地理信息工程]