管线设计的断面数据处理方法  

A Processing Method for Profile Data of Pipeline Design

作　　者：胡新玲[1] 郭新成[2] 

机构地区：[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

出　　处：《测绘与空间地理信息》2008年第1期147-148,151,共3页Geomatics & Spatial Information Technology

摘　　要：把空间矢量数据的压缩方法道格拉斯-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-普克法进行细滤。通过实验能有效地抽稀断面点。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.

关 键 词：DEM 断面数据 抽稀 

分 类 号：P208[天文地球—地图制图学与地理信息工程]