[Surface] "When I use "Fitting trimmed B-splines to unordered point clouds" example to fitting surface. I found Data points are partially clipped"

[ChenTYue]

Is your feature request related to a problem? Please describe.

A clear and concise description of what the problem is. Ex. I'm always frustrated when [ I use "Fitting trimmed B-splines to unordered point clouds" example to fitting surface. I found Data points are partially clipped].

Context

When I use "Point Cloud Show" example to show the gauge.pcd file,the result show like this picture: It's obviously a rectangular gauge. Howerve, when I use "Fitting trimmed B-splines to unordered point clouds" example to fitting surface. The result show like this video:

https://user-images.githubusercontent.com/74819962/153527696-c11b6208-b6f3-4a95-9fd6-389c0f4c678c.mp4

Expected behavior

Therefore I want to fitting the surface which is accurately closed to the cloud point .

Describe the solution you'd like

I'm guessing that the "Fitting Trimmed B-Splines to Unordered Point Clouds" program trimmed some of the data, so I want to know a solution to the surface fit.