How can I create one perpendicular frame plane at a specific point on a curve?

Grasshopper
1

Furthermore, if I can move a perpendicular frame along a curve?

Now my method is to create perpendicular frame planes of the curve, then increase the number of the planes until one plane goes close to the point. But it’s not accurate and time-consuming.

Thanks!

2

I think it should be this component. Is it right?
Capture

3

but how can I control the domain?

4

Got it :slight_smile:
https://www.grasshopper3d.com/forum/topics/set-curve-domain-to-0-1

5

Just reparameterize the curve input.

6

Thank you, Michael!