I have a gap in my corridor and I would like to create a terrain for the area south of the gap and another for the area north of the gap. I feel like there should be an easier way to get this done.
Currently I'm creating a terrain from a graphical filter, and that's coming out okay, except it spans the gap. So an obvious solution is to put a frame around the south end and clip the terrain there. What happens is that it clips the terrain at the boundary. That tells me that I need to orient the box I've drawn so that it will match the corridor. It also means that if I change the corridor in any way, I'll need to update the box.
What I'd like to be able to do is draw a box around the points that I want considered for my terrain model so that it won't attempt to connect across the gap in the first place.
It may be worth knowing that it's just one corridor to the south and to the north of the gap, so I can't just select the relevant elements and expect that to work in my favor.