I want to ensure that if there is an intersection of one line with another, then one of them should bypass the other. And depending on the conditions (for example, if the value is “0” then the line goes around from above. If “1” - then from below). The height from the center line and the angle of inclination must also be specified.

Where is the 0 & 1 for above and below come from? A predetermined value or a option you will have to decide based on specific conditions? Same with the height and angle.

I took as a basis the script that you showed and added it. There it is, but is there a more elegant way to do it than what I wrote? Скрипт з обходом лінії іншою лінією.gh (11.2 KB)

Hello
I quite understand what you want but in order to have a proper solution, it could be good you gave more information
How to choose which curve has a “bridge” ?
Are all curve on plane XY or you want a more general way to deal with ?

Can you upload your curves ? Internalise in Grasshopper or 3dm.

To make a bridge on a curve, plug a curve and a list of plane (the intersection point plus a direction). The script will make a bridge. bridge_curve.gh (13.5 KB)

If you want more curves, it is normally just a matter of dataTree

I encourage you to test your DataTree, using compoment like Branch or Panel … in order to check that curves, planes are well ordered. DataTree are powerful but tricky.

And if you want to change orientation of bridge, just flip the plane.

And don’t forget to put Solution on the post that solved your problem.

I can’t find a way to calculate the distance between collision points. This is necessary in order to connect the bridges. For example, if the distance between the rectangles is less than the length of the rectangle, then the bridge connects to another