| 依比例、不依比例和半依比例符号数学定义的修改 |
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| 引用本文： | 钟业勋,黄鹄.依比例、不依比例和半依比例符号数学定义的修改[J].海洋测绘,2008,28(4):19-21. |
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| 作者姓名： | 钟业勋 黄鹄 |
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| 作者单位： | 1. 广西师范学院,资源与环境科学学院,广西,南宁,530001;广西测绘局,广西,南宁,530023
2. 广西师范学院,资源与环境科学学院,广西,南宁,530001 |
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| 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。
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| 关 键 词： | 依比例符号 不依比例符号 半依比例符号 真实像 |
Revision of the Mathematical Definition of Scale Symbol,Non-scale Symbol and Semi-scale Symbol in the Map |
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| ZHONG Ye-xun,HUANG Hu.Revision of the Mathematical Definition of Scale Symbol,Non-scale Symbol and Semi-scale Symbol in the Map[J].Hydrographic Surveying and Charting,2008,28(4):19-21. |
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| Authors: | ZHONG Ye-xun HUANG Hu |
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| Abstract: | 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. |
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| Keywords: | scale symbol non-scale symbol semi-scale symbol true image |
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