| GIS模糊栅格数据结构隶属度的解算和地理多边形边界锐度 |
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| 引用本文： | 肖平,李德仁.GIS模糊栅格数据结构隶属度的解算和地理多边形边界锐度[J].测绘学院学报,1998(3). |
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| 作者姓名： | 肖平 李德仁 |
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| 作者单位： | 西安工学院!西安710054(肖平)，武汉测绘科技大学!武汉430070(李德仁) |
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| 摘 要： | 对 GIS中不定性因素的研究目前是一个热门的课题 ,许多 GIS研究人员提出了各种顾及不定性的 GIS空间数据结构 ,但是绝大多数只能停留在理论阶段 ,难以实施 ,其主要原因一是由于数据结构本身的复杂性 ,另外一个很重要的原因便是在这种数据结构中 ,对隶属度的获取很困难或很不精确 ;本文作者在介绍了顾及不定性的 GIS空间数据结构的基础上 ,引入了一种计算隶属度的方法 ,并以边界锐度这一概念扩展了传统的边界含义 ,实验结果证明所提方法是切实可行和易于操作的
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| 关 键 词： | 不定性 隶属度 GIS 锐度 |
The Geographic Boundary Sharpeness and a Method to Calculate the Membership in Fuzzy GIS |
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| Xiao Ping,Li Deren.The Geographic Boundary Sharpeness and a Method to Calculate the Membership in Fuzzy GIS[J].Journal of Institute of Surveying and Mapping,1998(3). |
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| Authors: | Xiao Ping Li Deren |
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| Institution: | Xiao Ping Li Deren |
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| Abstract: | How to deal with the uncertainty in GIS is becoming more and more pressing and urgent Many people have focused their research on this aspect and also given out some spatial data structures concening uncertainty,but few of them have been put into use One of the major reasons is that it is very difficult to get the membership of the pixels In this paper a method to calculate the membership has been proposed and the sharpness of grographical polygon boundary has also been introduced The results of the experiment have proven that the proposed methods is practical and easily operated |
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| Keywords: | Uncertainty Membership GIS Sharpness |
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