I think the main problem its identifying in wich cases reparametrize the data, Im gonna do the exercise you recomend in order to have a better understanding. Saludos.

Hi Julio! I'm guessing you're referring to when I reparameterize the input from the Evaluate Curve component? It is not necessarily strictly speaking. Reparameterizing a curve or a surface means you remap their bounds to be between 0 and 1. Most if not all components in Grasshopper have their default set between 0 and 1, a number slider, construct domain and range just to name a few. If I wouldn't have reparameterized the curves, I'd have to create different number sliders with different bounds for all of them. Some curves have a domain between 0 and 2.6, some between 0 and 4.5 etc etc, because they have different lengths. So one slider from 0-2.6, one from 0-4.5 etc etc and I'd also have to match up the correct sliders with the correct curves, in short a hassle. Better reparameterize all curves between 0-1 so I need just one slider for all. I hope this makes sense. I encourage you to play around with this. Draw some lines in Rhino with different lengths. Reference them and use the Evaluate curve with different t-values, with and without reparameterizing. You'll see what's going on more clear. Good luck! Arie