| 不同约束条件下地图符号的数学定义 |
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| 引用本文： | 钟业勋,郑红波.不同约束条件下地图符号的数学定义[J].测绘信息与工程,2007,32(3):49-51. |
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| 作者姓名： | 钟业勋 郑红波 |
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| 作者单位： | 1. 广西测绘局,南宁市建政路5号,530023;资源与环境科学学院,南宁市明秀路175号,530001
2. 浙江工业大学信息工程学院,杭州市潮王路18号,310032 |
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| 摘 要： | 地图符号qgf(x)是制图对象x在f、g、q三重拓扑映射下的象.根据制图对象在现实中存在与否,定义了模拟与虚拟地图符号;根据地图符号与地图比例尺相关、无关或半相关,定义了依比例符号、不依比例符号和半依比例符号;根据地图符号定位部的几何特征,定义了点、线、面地图符号.
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| 关 键 词： | 拓扑映射 等势 地图符号的数学定义 约束条件 |
| 文章编号： | 1007-3817（2007）03-0049-03 |
| 修稿时间： | 2006-12-28 |
MATHEMATICAL DEFINITIONS OF MAP SYMBOLS IN DIFFERENT CONSTRAINED CONDITIONS |
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| ZHONG Yexun,ZHENG Hongbo.MATHEMATICAL DEFINITIONS OF MAP SYMBOLS IN DIFFERENT CONSTRAINED CONDITIONS[J].Journal of Geomatics,2007,32(3):49-51. |
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| Authors: | ZHONG Yexun ZHENG Hongbo |
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| Institution: | 1.Guangxi Bureau of Surveying and Mapping, 5 Jianzheng Road, Nanning 530023, China;2.School of Resource and Environment Science, Guangxi Normal College, 175 Mingxiu Road, Nanning 530001,China; 3.College of Information Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310032, China |
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| Abstract: | Map symbol qgf(x) is an image of mapping object x under three times topological mapping f,g,q.According to mapping object exists in actuality or not,the imitative and virtual map symbol are defined;according to map symbol with map scale relate,not relate or semi-relate the scale symbol,non-scale symbol and semi-scale symbol are defined;according to the geometry character of map symbol location part,the point map symbol,line map symbol and area map symbol are defined. |
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| Keywords: | topological mapping equipollence mathematieal definition of map symbol constrained condition |
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