一种基于IDW的等值线、等值面前端生成方法  

A Front-end Method for Generating Contour Line and Surface Based on IDW

作　　者：殷甲伟 房晓亮 余豪 YIN Jiawei;FANG Xiaoliang;YU Hao(Zhongnan Engineering Co.,Ltd.,Powerchina,Changsha 410014,China;GIS Technology Applied Research Centre,Changsha 410014,China)

机构地区：[1]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [2]GIS技术应用研究中心,湖南长沙410014

出　　处：《地理空间信息》2022年第6期116-118,共3页Geospatial Information

摘　　要：在对等值线、等值面生成算法进行分析的基础上,针对流域治理一体化管控平台的降雨量等监测数据,设计了降雨量等监测数据的等值线、等值面生成算法流程。提出一种基于反距离加权插值算法、等值线追踪算法、三次样条平滑算法在前端生成各类监测数据等值线、等值面的方法。最后以10个测站某一个时段内的临时降雨量数据为例,对提出的等值线、等值面生成方法进行验证,结果表明,所提出的方法可以快捷的在前端生成各类监测数据的等值线、等值面。Based on the analysis of contour line and surface generation algorithms, according to the river basin management integrated control platform monitoring data, an algorithm flow was designed to generate monitoring data contour lines and surfaces. Combined with the inverse distance weighted interpolation algorithm, contour tracking algorithm and cubic spline smoothing algorithm, a contour line and contour surface generation algorithm was proposed to generate isolines and isolines of various monitoring data on the front end. Finally, taking the temporary rainfall data of 10 stations in a certain period as an example, we verified the proposed algorithm of contour line and contour surface generation. The results show that the proposed method can generate all kinds of monitoring data contour lines and surfaces conveniently and quickly on the front end.

关 键 词：IDW 等值线 等值面 

分 类 号：P208[天文地球—地图制图学与地理信息工程]