Grasshopper parallel lines on round curve

[Annaa (Anna)]

How can I create those lines in Grasshopper?

[Joseph_Oster]

It’s better to post an image instead of a PDF file.

And a GH file, of course

[Annaa (Anna)]

How? Could you explain it to me Or how can I start. I already searched for similar references, but have not find some.

[Joseph_Oster]

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[Joseph_Oster]

[Joseph_Oster]

[Joseph_Oster]

Same curve as version ‘b’, but simpler code: (front view)

P.S. Same non-planar curve projected to XZ plane (becoming planar), then mirrored: