三维网格的交互式编辑

在曲面造型系统中,如何方便地修改和交互地编辑曲面模型是一个关键问题。提出了一种基于小波多分辨率分析的交互式编辑方法。首先通过小波多分辨率分析,将复杂网格简化成各种分辨率;然后再通过Dijkstra最短路径算法和宽度遍历方法选取待编辑区域;最后,基于三维图形的几何变换方法,对选取的区域进行交互式编辑,进而合并之,并恢复到原始分辨率。实验结果表明,该方法主要特点是操作直观、方便、快速。

Wavelet-Based Multi-resolution Analysis of Irregular Meshes

It is of great challenge to interactively modify surface in modeling systems. an active edit method based on wavelet-based multiresolution analysis is proposed in this thesis. Firstly,by the means of wavelet-based multi-resolution analysis,we simplify the complex meshes into different resolution ones;Secondly,through the algorithm of Dijkstra shortest path and width firstly traversal,we get the submeshes that need to be edited;Finally,based the method of 3D graphics' geometry transform,we make interactive e...