复杂地形条件的地表面积计算软件开发

Development of program for calculation of surface area in complex region

针对现有地表面积计算软件在计算复杂地形时操作异常繁琐,且所生成三角网为单边界三角网这一问题,开发了一种新的地表面积计算软件。采用C#语言,利用数字地图,按照三角网建立地面模式,通过三角网内高程内插、点坐标集判断和分类等方式,完成待测区域内地表的并行分块与三角网的重建,实现复杂地形条件下的多边界三角网的生成和地表面积的一体化计算,并将区域内各个三角形的编号和面积直接显示于计算机屏幕上。实验结果表明:该软件使用直观方便,操作简单,精度可靠,适用范围广,可以有效地减少计算复杂地形地表面积时的操作步骤,降低工作强度,并能输出面积计算结果的各种信息。

According to the fact that it is extremely complicated to calculate surface area with the surface area calculation software,and the triangulation is built with single boundary,this paper developed a new program for calculation of surface area.Programing with C sharp language.It established ground mode according to triangle network with digital maps,with the method spatial interpolation,judgment and reclassification of point position coordinate sets,etc.To achieve parallel partitioned of the surface area and reconstruction of triangulation,it is realized that multi-boundary triangulation and united calculation for surface area in complex region,and showing the number and area of each triangle on the screen of a computer.The results show that this program is simple,convenient and reliable precision,can be used to calculate the surface area in various conditions,meanwhile,it can effectively reduce procedures for calculation of surface area in complex region,reduce the working intensity,and output all kinds of information about surface area.