| 管线设计的断面数据处理方法 |
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| 引用本文： | 胡新玲,郭新成.管线设计的断面数据处理方法[J].东北测绘,2008,31(1):147-148,151. |
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| 作者姓名： | 胡新玲 郭新成 |
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| 作者单位： | [1]新疆大学建筑工程学院,新疆乌鲁木齐830008 [2]长安大学地质工程与测绘工程学院,陕西西安710054 |
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| 摘 要： | 把空间矢量数据的压缩方法道格拉斯一普克法引入到断面数据的抽稀处理中，并对算法进行改进。首先按照一定算法进行整条断面线的粗滤处理，找出地形特征点、平面转折点、地物点等作为关键点，然后依据关键点对断面线进行分段，在段内使用道格拉斯一普克法进行细滤。通过实验能有效地抽稀断面点。
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| 关 键 词： | DEM 断面数据 抽稀 |
| 文章编号： | 1672-5867（2008）01-0147-02 |
| 收稿时间： | 2007-04-16 |
A Processing Method for Profile Data of Pipeline Design |
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| HU Xin - ling ,GUO Xin - cheng.A Processing Method for Profile Data of Pipeline Design[J].Northeast Surveying and Mapping,2008,31(1):147-148,151. |
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| Authors: | HU Xin - ling GUO Xin - cheng |
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| Institution: | HU Xin - ling ,GUO Xin - cheng ( 1. School of Architecture Engineering, Xinjiang University, Urumqi 830008, China; 2. School of Geological Engineering and Surveying and Mapping Engineering, Chang＇an University, Xi＇an 710054, China) |
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| Abstract: | This paper introduced the method of vector data compression - Douglas - Peucher algorithm into profile data compression and improved the algorithm. Firstly, according to the algorithm, it carried out the coarse filter, and discovered the terrain point, the plane turning point, and the feature point as the key points. Then it divided the data into several parts based on the key points and performed the Douglas - Peucher algorithm in each part. The experiment showed that the algorithm is effective. |
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| Keywords: | DEM profile data compression |
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