Thanks for the suggestion @kochizufan

Hmmm that's an interesting suggestion, are you aware of any existing libraries or software packages that support that sort of analysis? If so I can potentially take a look...

Cheers

Thank you for having interests on my suggestion.
Sorry I don't know any previous work for this function.

This is known as a Constrained Triangulation or Conforming Triangulation. JTS has an implementation of a Conforming Delaunay Triangulation. There's probably quite a few other implementations. See for instance Shewchuk's Triangle.

Thanks for the suggestion @dr-jts , and thanks for incredible work in the open geo space and sharing your knowledge!

Thanks, @rowanwins . Keep up the good work with Turf - it's a very interesting project!

Hi
I found another previous work of constrained triangulation:
https://github.com/gwlucastrig/Tinfour

This is written in JavaScript!
https://github.com/mikolalysenko/cdt2d

I tried to implement turf-constrained-tin by myself with using cdt2d.
But finally, I gave it up because I have less knowledge about typescript...
It is happy if someone implements this instead of me...