Math used for trim operation in NX

[TCS153518]

Hello

Iam looking for information on what math is used when trimming surfaces in NX. Sometimes it adds more poles when trimming two B surfaces. How to control the degree and segments when trimming surfaces?

 

[Toost]

The Math is NURBS.

https://en.wikipedia.org/wiki/Non-uniform_rational_B-spline

I do not recognize the behaviour you are describing.
Do you have an example of this ?

Regards,
Tomas

The more you know about a subject, the more you know how little you know about that subject.

 

[JohnRBaker]

There is a Modeling Tolerance value that is used when NX must approximate a result, such as when Trimming free-form faces or creating an Intersection Curve when one or more of the Bodies are free-form shapes.

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:

The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[TCS153518]

Thanks John and Tomas. These two responses summarizes how the two surfaces get trimmed and how the resulting edges are created.

 

[jerry1423]

Is there any way to change the modeling tolerance on an existing solid body ?

Jerry J.
UGV5-NX1899