AutoCAD Civil 3D

[#1]

P1.DistanceToSurface(SurfaceTarget) - Vertical Distance from point P1 to SurfaceTarget (Point above = positive, point below = negative). The above is the reference that I'm using... So in the Condtion value I've entered the following expression, am I getting this right or NO?

AP1.DistanceToSurface(TargetSurface)>=0

False = Cut (below TargetSurface)
True = Fill (above TargetSurface)

Looking for some confirmation on if this is the right method to the madness? Thanks in advance.

[#2]

That looks correct. What I do would do if I wasn't sure would be to add a point to the true side and then move the target surface inside of SAC up and do and make sure that it appears/disappears the way I expected.

Cheers,

Peter Funk

Autodesk, Inc.