基于参数化的立交建模算法及可视化技术

Parametrization based Approach for Modelling and Visualization of Interchange

立交三维造型及可视化技术是采用计算机进行立交设计的一个前沿应用领域。根据空间扫描体表面算法，提出了立交模型参数化、特征化设计方法，给出了基于微机环境下的立交建模算法。该算法可以设计复杂形状的立交，得到任意精度的数据结果。最后，就立交设计的可视化与三维仿真技术提出了有效的方法与途径。

D modelling and visualization of interchange is a front approach. According to surface showing technique in space scan object, comprehensively utilizing parametrization and feature, the paper proposes a new 3D modelling method of interchange in PC. The method can design complex interchange and get results with arbitrary accuracy. Visualization and simulation in the field of interchange designing are presented.