greetings, i got a set of curves which i want to “close” but i dont find the right components
I also have a bounday line, whicht might help to solve the problem
If these curves are ordered (or after you order them) together in sequence, then you can use Connect Curves component. You might need to check directions, though. Anyway, if you share a file with internalized data people can help more easily.
Here is the file
Thank you for your efforts
connect curves.gh (23.0 KB)
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May I ask what’s going on here? 
Or, what your goal is with the geometry (other than connecting these curves)?
I know it’s none of my business, and feel free to ignore my question - however I noticed some oddities going on with your resulting curves? Probably inherited from oddities in the mesh you’re working with? Some duplicate/overlapping linework? Also you seem to be using a (apparently identical) boundary curve multiple times.
I try to generate a homogeneous triangular mesh on that boundary curve to reuse it which kangaroo . If you have some optimization suggestions, I would very appreciate it
One option could be using the ‘TriRemesh’ component. You can first make a boundary surface from that curve, then tri-remesh it; it has an option to specify the target edge length.
The issue is somewhat more complicated. I have opened another thread about this, in which the problem is described in more detail. Maybe you can help further
Aesthetic triangular mesh on surface without artefacts and n-gons - Grasshopper - McNeel Forum