In a recent post about Ramps (and their problems), I stated that you cannot place Spot Elevations on the sloping part of the Ramp. While this is true in plan views, I was surprised to discover that Ramps can actually be annotated in 3D views…
While working with shape-edited Floors, I have noticed that you cannot place a Spot Elevation on a sloped Floor face with a curved edge. You can place Spot Elevations along any edge, but once you hover over the actual face, it won’t allow you to place a Spot Elevation.
The Spot Slope can be a useful little tool out in the landscape. You can place one at any given point and immediately get the slope for that face. But they do have a few funny little quirks as well as some other limitations.
As I’ve mentioned before, Topo is difficult to modify and fine-tune accurately. It is not impossible, though it can be time consuming. But understanding how Topo works and triangulates can make this task manageable and much less frustrating.