Extract Subcurve of Closed Curve from [b,a] not from [a,b]

Grasshopper
, ,
1

Hi,

i’m facing following problem and searching for a smooth workaround.

Given a closed curve, parametrized from “0 To 1”, the part from “0.98 To 0.04” is needed. Extracting the subcurve from “0.98 To 0.04” gives the same result as from “0.04 To 0.98”, i.e. the considerable longer part of the curve. How do i get the shorter part?

Things I tried, but are kinda ugly:

  • Dividing the Domain into “0.98 To 1” and “0 To 0.04” works
  • Changing the seam of the closed curve, such that there is no gap in the interval works, but in the general problem there will always be a “0.98 To 0.04”.

mwe_subcurve.gh (7.4 KB)

canvas
canvas1916×951 167 KB

2

Hi
I think the first 3 components used here is your answer:

3

is there any solution for this problem?

4

Probably multiple ways to do this.

seam_2024_Jul17a
seam_2024_Jul17a964×288 23 KB

seam_2024_Jul17a.gh (4.9 KB)

Or skip Construct Domain:

seam_2024_Jul17b
seam_2024_Jul17b872×288 24.6 KB

seam_2024_Jul17b.gh (4.3 KB)

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