Offset curve on surface

[Ramon]

Hi everyone. Does anyone know how to offset a curve on a Nurbs surface in Dynamo? I can’t seem to find it.

Many thanks in advance.

[Kulkul]

Hi Ramon,

Could you show screenshot of your complete graph?

[Ramon]

Hi Kulkul.
By all means. I’m not sure how helpful it is, as its really just a surface, from which I extract the edge curves. I have faked a codeblock with some dummy code to illustrate what I would like to do.

Your help is appreciated.

[Dimitar_Venkov]

Not a very straight-forward solution:

[Ramon]

Thank you. I like the concept. However, I need the offset distance to be constant on the 3D surface, whereas in this workflow it is only constant in the projection plane.