Is it possible to transform a curve without changing its length?

Rhino Rhino for Windows
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1

This seems simple but years into learning Rhino, I don’t know how this can be done. Like if you have a circle with a certain circumference and then you move control points -how can you make it so that the circumference does not change?

2

Hi @Aiden_Kashi, you might try the command _FixedLengthCrvEdit

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