Extrude a surface along a curve, how to draw this curve?


Hello guys,

I have continued my Rhino studies and now I’m face a new problem.
I need to extrude a surface along a curve, but I couldn’t draw a curve exactly like this:

I wanna make this edge for the sides.
May someone help me?

My model is attached. Please, give me tips and opnions.

PSV formaFinalKelvin.3dm (5.4 MB)

(Pascal Golay) #2

Hi Kelvin - I’m not sure I follow, yet, but, try this:
DupBorder on the plane to make a rectangle
Start Sweep2 using the hill edges as rails and the rectangle as the cross section curve.
Use ‘Maintain height’ in the Sweep2 dialog.

Does that do what you wanted?



Hello Pascal, thank you for the help.
I was need a function that gave me a curve from a edge. I found that function, It is called “extractisocurve”, It is exactly what I’ve nesses.

(Pascal Golay) #4

Hi Kelvin - use DupEdge for this. The edge is not always an isocurve.