Start point of line

I have x number of lines in dynamo.

I want to split them up into segments using points, let’s say 3m.

No problem…

BUT, what if I want to vary the start point randomly on each one separately?

I could have x number of sliders for the start point parameter but I don’t know what x will be and it will vary each time.

I don’t want to have a random number I can’t repeat (it’s for generative design).

Any ideas?

Extend curve node with a negative number then get your points on this new shortened curve

Could you show me graphically please? I don’t quite understand what you mean.

Anyone else got any ideas? :pleading_face:

OK - here’s a messy work around. Green dots are the original start points of the lines:

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