The algorithm first construct a progressive mesh based on the source mesh and change the mesh into the simplest form, tetrahedron.

算法首先对原始三角网格构造一个累进网格，把三角网格简化成最简单的形式，四面体。

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In addition, based on this simplification algorithm, a framework of progressive mesh transmission is also implemented as a browser-based visualized prototyping system.

此外，在此简化算法的基础上，还提出一个递进网格传输的框架，并实现了一个基于浏览器的可视化原型系统。

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These methods can be divided into three: (1) method based on progressive mesh (2) method based on sphere relaxation (3) conformal method. The three methods have their own advantages and shortcomings.

将亏格为零的三维模型进行球面参数化的方法大致可以分成3类：(1)基于累进网格的方法(2)球面松弛的方法(3)保角参数化方法。

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These methods can be divided into three: (1) method based on progressive mesh (2) method based on sphere relaxation (3) conformal method. The three methods have their own advantages and shortcomings.

将亏格为零的三维模型进行球面参数化的方法大致可以分成3类：(1)基于累进网格的方法(2)球面松弛的方法(3)保角参数化方法。

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