How to repeat a curve along two rails without generating a mesh?

Hi everyone, I’m working on a morphological surface analysis and need to visualize how a surface is constructed by moving a curve along two rails.

So far, I managed to create the shape using Sweep2 and Mesh Surface, but in both cases, an unwanted construction grid appears. What I really need is to see only the repetition of the curve along its path, without generating a mesh or additional lines.

I tried another approach:

  1. I created the two rails and divided them into points using Divide Curve.
  2. I attempted to repeat the curve at these points to represent its movement, but I couldn’t get it to work.

I’m new to Grasshopper and probably missing something essential.

My question is:
What is the best way to achieve this without generating extra elements like a mesh or unnecessary lines?

I’m attaching my file with both solutions so you can see what I’ve done. Thanks in advance!
Two rails & one geometry.3dm (24.8 KB)
Grashopper components.gh (10.8 KB)

You can try isocurves.

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Leopoldo thank you for your response! I tried replicating your approach, but I’m still getting a grid structure instead of just the repeated curve along the rails. I suspect I might be missing something in the setup.

Would you be able to take a quick look at my file to see what I might be doing wrong? Alternatively, if you could share your file, it would be really helpful for me to use as a direct reference.

I really appreciate your time and assistance!

Grashopper components.gh (10.5 KB)
Two rails & one geometry.3dm (44.3 KB)

Darkens the Iso Curve component.
Grashopper components a.gh (7.8 KB)

1 Like

Thank u so much!