B样条在管道工程设计中的应用及三维设计图形的实现

The Application of Bspline in the Design of Pipes Engineering and Realization of 3D Graphics

论述了如何利用三次B样条来构造岔管光滑过渡自由曲面的数学模型的理论和方法 ,提出了曲面求交的辅助平面法。在程序开发方面 ,采用了当前较先进的开发工具ObjectARX3 0进行基于AutoCAD 2 0 0 0的二次开发。算法通过VC 6和ARX3编程得到了实现 ,在AutoCAD 2 0 0

The paper discusses how to construct forked pipe′s mathematical model with Cubic Bspline Curve,and it also introduces Plane-aided Method of conicoid.In order to develop programs based on AutoCAD 2000, the development tools ObjectARX3 0 is used. The algorithm has been realized with VC6 0 and ARX3 0,and incorporated into AutoCAD 2000.