摘要
通过对一些插值法从运算性能、误差和精度等方面进行比较后,选定三次样条函数插值法作为地质剖面图中自由曲线的计算机辅助绘图的数学模型。对于地质剖面图中断层分界线遇到钻孔或平洞的情况,文中建立了它们的求交、平移和裁剪算法。
The interpolation of cubic spline function is selected as the mathematical modelling of arbitrary curved line of the computer aided drafting for engineering geological profile. Its operating properties, error and precision are compared with some other interpolation. The algorithms of clipping, intersection and translation are also given when the dault demarcation line crosses the path of a borehole or an adit。
关键词
地质剖面图
计算机
绘制
数学模型
geological profile
computer drafting
arbitrary curved line
cubic spline function
clipping algorithm.
