Here C# Create a mesh with a hole inside - #31 by maje90 a script that uses rhinocommon delaunay method to build a mesh and then remove unwanted edges, 100k vertices in less than a second.
There are other examples that are even better, from experts in the forum.
I still have no idea of what you need to do… so …
Why so? Can you post your data? Your actual code? Anything?
…I’m not understanding this. Please elaborate… and attach something.