Creo Interactive Surface Design (Style) > Curves > Creating Curves > Curves on a Surface (COS) > To Create a COS by Intersect
  
To Create a COS by Intersect
Use the COS by Intersect tool to create a curve on surface by intersecting a surface with another surface or datum plane.
1. Click Style > COS by Intersect. The COS by Intersect tab opens.
2. Click the collector, and then select one or more surfaces. This selection forms the first set of surfaces to intersect.
 
* The surfaces can either be internal or external to Style.
3. Click the collector, and then select one or more surfaces or datum planes. This selection forms the second set of surfaces or datum planes to intersect.
4. Click .