基于狄洛尼三角网的等高线及挖填方分析研究

摘要

For the purposes of displaying External measurement data in three-dimensional model, the author used the improved method of inserting point by point to build the Delaunay triangulation,combined with AutoCAD Civil 3D,so it can draw contours and calculate the cut and fill earthwork square in three dimensional environment,this can better fit the terrain contour movements,can visually analyze the location and earthwork of excavation and filling side,in short,it changes the use of AutoCAD applications from the traditional two-dimensional model to three-dimensional model.%基于对外业测量数据三维表达的目的，采用改进的逐点插入法构建狄洛尼( Delaunay)三角网，并结合Auto-CAD Civil 3D进行测量数据三维展示，实现了三维环境中等高线的绘制以及挖填方土方量的计算，可以较好拟合地形等高线起伏，直观分析挖填方的位置和土方量，使AutoCAD的应用由传统的二维模式向三维模式转变。