Extracting closed lines and outer lines (Help! /Grasshopper)

[매운맛레몬]

If I draw three lines like in example 1, how can I extract the inner offset line (the red line 7) inside the closed area and the separated outer lines (lines 1 to 6) like in example 2?

[매운맛레몬]

haha I did

[jessesn (Jessesn Chen)]

@매운맛레몬

If I draw three lines like in example 1, how can I extract the inner offset line (the red line 7) inside the closed area and the separated outer lines (lines 1 to 6) like in example 2?

FYI,

ExtractingCrvs.gh (13.0 KB)

[martinsiegrist]

The pipe trick😉

[inno]

@martinsiegrist

The pipe trick😉

I still think about that at least once a week

Celtic Knotwork self-intersections and intersections

Not much time nowadays but wanted to test an idea: If this was a curve drawn by hand, the curve would go over the already drawn curve at an intersection. The definition below uses pipes instead of offset. Since the larger diameter pipes are open surfaces they only subtract geometry from the initial pipe where they intersect and not where they are “co-axial” with the pipe. [image] [image] [image] offset_curve_with_gaps.gh (14.2 KB)

[매운맛레몬]

THanks! i havent thought like this…Oh