Display 3D in dynamo

[D.JohnWick]

Hi everyone
How to display normal vector of surface in 3D space dynamo?

LIKE THIS

[Daniel_Woodcock1]

You can use surface.pointatparameter with the same UV values to get a point on the surface, then draw a line by point, direction and length using your that point on surface, the normal of that surface and then a length.

[D.JohnWick]

@Daniel_Woodcock1 Thank you very much.