FindClosestEdge of NavMeshSurface?

Is there any way to use FindClosestEdge with a NavMeshSurface? Or any way to CalculateTriangulation on a NavMeshSurface component?

I tried accessing the navMeshData on the surface but that only gives you position, rotation, bounds etc-

Thanks-

 

https://docs.unity3d.com/ScriptReference/AI.NavMesh.FindClosestEdge.html

This doesn't work? Or is this just legacy ?

 

It works from an agent on a mesh- I was creating a script to automatically add navmesh links to procedural rooms using Navmesh surfaces- so I was trying to call FindClosestEdge from a non agent object-

What I ended up doing was using the box colliders on the room pieces and using ClosestPoint on the colliders to auto create Navmesh links- script for anyone interested here https://github.com/mdotstrange/MyUnityScripts/blob/master/GenerateNavLinks.cs