各位，大家好：
简单来说，就是无论用什么方法在moi中都无法做出一条空间扭曲较为复杂的没有褶皱或破损面的管道，并用于成功的布尔求差甚至后面的倒角。如图片中的例子做一个半径为30单位，高度为50单位的圆柱在上下两个四等分点之间投影一条G2连续，膨胀率为1的桥接曲线，使用如图的所有方法，形成的管道都有不同程度的褶皱、破损或无法完成布尔的情况。

个人认为，这跟倒角面破损，失败率高，形成的断的，细小的边、面的段数、概率高是同一个问题，自由平滑的空间扭曲不行。对于较复杂的倒角的表现是破损或失败、对于造型、布尔、分割等操作会让破损、断裂增多，从而直接影响并限制混接面、Nsided、等工具的实际效果。

对于倒角不成功，常用的方法是将边缘形成相应半径的管道，布尔求差并修补。断边，破损面以Merge &Join，配合快速选择代码，进行修补倒也可以。

所以，请尽量优化、改善管道的问题吧。谢谢。


（Hello everyone
Simply put, no matter what method is used in Moi, it is impossible to create a pipeline with complex spatial distortion without wrinkles or damaged surfaces, and use it for successful Boolean subtraction or even subsequent fillet. As shown in the example in the picture, make a cylinder with a radius of 30 units and a height of 50 units, and project a G2 continuous bridge curve with an expansion rate of 1 between the upper and lower quartiles. Using all the methods shown in the picture, the formed pipeline will have varying degrees of wrinkles, damage, or inability to complete Boolean operations.
In my personal opinion, this is the same problem as the damaged chamfer surface, high failure rate, and the formation of broken, small edges and surfaces with high probability of segments. Free and smooth spatial distortion is not feasible. The manifestation of more complex chamfers is damage or failure, and for operations such as modeling, Boolean, and segmentation, it can increase damage and fracture, directly affecting and limiting the actual effect of tools such as mixing surfaces and Nsided.
The common method for unsuccessful fillet is to form pipes with corresponding radii at the edges, perform Boolean subtraction, and repair them. Broken edges and damaged surfaces can be repaired using Merge&Join, combined with quick code selection.
So, please try to optimize and improve the pipeline issues as much as possible. thanks)