his paper provides a tutorial and survey of methods for parameterizing surfaces with a view to applications in geometric modelling and computer graphics. We gather various concepts from di® erential geometry which are relevant to surface map

acis scheme几何造型。可以描述整车的基本外形，简单易懂-acis scheme geometric modeling. Can describe the vehicle' s basic shape, easy to understand

python源代码输入TexGen，可对三维编织体进行几何建模。(Python source code input texgen, 3D braid can be geometric modeling.)