The definition of the CoS is with respect to the surface it lies on; hence the two are linked completely. Any change to the surface will therefore be automatically reflected in a change to the CoS.
There is also a Construction History relationship between a projecting curve and the resultant CoS. Any changes to the projecting curve will automatically update the CoS. Similarly, a CoS at the intersection between two surfaces will update if the surfaces are modified. (A CoS with history is displayed in green; one that no longer has history, in blue).
These two characteristics, combined with the use of real-time diagnostics, make working with CoS very interactive and efficient.
