基于GIS的地下水水位等值线图自动生成算法研究  

Study on the Arithmetic of Automatically Drawing Isoline of Groundwater Level Based on GIS

作　　者：迟宝明[1] 李治军[1] 叶勇[1] 林岚[1] 施枫芝[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026

出　　处：《吉林大学学报（地球科学版）》2007年第2期261-265,共5页Journal of Jilin University：Earth Science Edition

基　　金：国家"973"项目(G199904750606);水利部松辽水利委员会科技项目

摘　　要：采用VB与MapObject控件相结合进行地理信息系统(GIS)软件的开发。以Delaunay三角网为基础,利用等值点的插值、追踪,等值线的光滑处理等手段,开发了基于MapObject的地下水水位等值线图自动生成程序。直接读取Shapefile数据文件,生成线格式的Shapefile文件,使生成的等值线图能用于其它基于Shapefile文件格式的GIS软件中。该软件已成功地应用于松辽流域地下水信息管理系统中。The authors carried through the secondary development of GIS by utilizing VB and MapObject control. During the development, interpolation, tracing of iso-points and smoothing isolines were adopted. The program building isolines of hydraulic head automatically was developed. By inputting Shp file this program can be used to build isolines. At the same time isoline data can be outputted and read by some GIS software which regard Shp file as one of input data format. This program has been applied effectively to Songliao Basin groundwater management information system.

关 键 词：等值线 DELAUNAY三角网 MAPOBJECT BEZIER曲线 GIS 地下水 

分 类 号：P641.1[天文地球—地质矿产勘探]