基于SuperMap Objects的等值线绘制方法研究与实现

The Research and Implementation of the Method of Plotting Isoline Based on SuperMap Objects

利用SuperMap Objects组件式二次开发,运用GIS分析功能通过空间内插法IDW(距离反比权值插值)插值获取栅格数据,在此基础上根据指定的取值范围生成等值线,阐述在地图中生成等值线的原理与方法。

Using component based secondary development of SuperMap Objects, this paper acquires grid data through spatial interpo- lation method IDW using GIS analysis function, thus generates isoline according to given value range, and elaborates the principle and method of generating isoline in maps.