依比例、不依比例和半依比例符号数学定义的修改  

Revision of the Mathematical Definition of Scale Symbol,Non-scale Symbol and Semi-scale Symbol in the Map

作　　者：钟业勋[1] 黄鹄[1] 

机构地区：[1]广西师范学院资源与环境科学学院

出　　处：《海洋测绘》2008年第4期19-21,共3页Hydrographic Surveying and Charting

基　　金：广西科学基金资助项目(桂科基0448039)

摘　　要：定义了一般地图符号后,在此基础上引入地物的真实像,通过地图符号与真实像相同、包含和半包含关系的讨论,分别推导了依比例符号、不依比例符号和半依比例符号数学定义。修改后的定义更能反映三种符号的本质特征和内在联系,定义的表达也更为简捷。After the definition of general map symbol, based on which, the true image concept of planimetric feature is introduced, and the inclusion and semi-inclusion relation of map symbol and true image are discussed. The mathematical definition of scale symbol, non-scale symbol and semi-scale symbol are computed respectively. After revising the definition, the essence character and internal relations of the three map symbols will be reflected more clearly, the definition express more succinct too.

关 键 词：依比例符号 不依比例符号 半依比例符号 真实像 

分 类 号：P28[天文地球—地图制图学与地理信息工程]