test-file-exaMPLE_re.gh (15.0 KB)
For each point you could multiply the Z value by a function of the distance to the boundary rectangle.
I used a graph mapper for a smooth transition; the important part is that a 0-distance must return 0 (the bottom left of the graph mapper bust be 0.0 )
unfortunately, I am having trouble with implementing the solution on another model, where the topography is created, also, with a graph mapper. Can you help me out here?
I bet you see the problem immediately… Test-smoothed-edge2.gh (14.0 KB)