hi, this like feature request similar in CandyStore preprocessor. Many other FE preprocessor adopting approach of selection based angle criteria also. It’s frequently in used during modeling to assign boundary condition, load and contact. Hopefully this feature will be available in the future of CGX due to usefulness. Thank you.
qadd nset
extn nset 45
This command will extend the set with all surface nodes in the region until the angle between two neighbouring faces is greater than 45 degrees
*image from P. Prokopczuk (2011)