Corridor Not Allowing Daylight To Bound Surface

[arander5343597]

I am intending to create a corridor and an associated surface along an alignment that makes a circular path around my site and almost joins up with itself. The problem is that a surface created without any boundaries fills in proposed contours into the middle "donut hole" of the site, whereas I want them trimmed at the edge of daylight of the corridor.

1. I built the following assembly out of generic and basic pieces:



2. I placed the corridor on an alignment and profile of my choice, and applied that assembly to the corridor. The LinkSlopetoSurface, Daylights, and Cut/Fill Conditional sub-assemblies were all correctly linked to the Existing Grade (EG).



3. I created the surface using a Top link, since I don't care about subgrade volumes--I'm just trying to get a basic graded daylit surface.

TopSurface.JPG

4. The proposed surface (green/yellow contours) jumps the corridor and fills in the interior, which is what I'm trying to clip with a Daylight Boundary.

ProposedNeedsToBeTrimmed.JPG

5. Under the Boundary options of the corridor, there is no option for Daylight, even though my final cut/fill daylights are linked to the correct surface (as shown above).

NoDaylightOption.png

Why is this? I'm having trouble figuring out why the Daylight link is not showing up, even though the proposed corridor edge looks like it is correctly terminating based on my daylight criteria. Any thoughts would be greatly appreciated!

[ccowgill]

The boundary to select for a corridor is corridor extents. That will get you what you need

[arander5343597]

The boundary to select for a corridor is corridor extents. That will get you what you need

Wow, that did it. I can't believe I spent so much time without realizing that option was the key. Thank you!

[ccowgill]

Not a problem.