You can select geometry based on rules such as coplanar, coaxial, and so on.
PTC Creo Parametric
|Product / Module||
PTC Creo Flexible Modeling Extension
|Product Functional Area||
|User Interface Location||Click Flexible Modeling > Geometry Rules.|
|Processes, Initiatives, and Best Practices|
Benefits and Description
Use Geometry Rules to quickly identify and select geometry based on certain characteristics. If the original seed surface selected is planar then the rules available are Coplanar or parallel. If the original seed surface selected is cylindrical then the rules available are Coaxial, Equal Radius, or Same Convexity. Geometry Rules are retained and updated to changing geometry.You can use the selected set of geometry inside flexible modeling features.