Grasshopper parameter question

I am trying to get a curve from the intersection with a distance of 2.000 on both sides from the intersection.

I am doing something wrong, but I do not know what. Do you might know what I am doing wrong?
Thank you for your response. :smiley:
problem parameter (43.9 KB)

Here’s a “brute force” way:
problem parameter (54.3 KB)

sometimes curve direction(s) is the problem, so I flipped some there - maybe incorporate into the logic you had


Thank you :slight_smile:

Because of your help, I understood how I could make it, and made a shorter version of it.

problem parameter (132.0 KB)