NURBS, the parametric representation of curvy geometry, is at the core of Rhino's capabilities. Likewise, some of the most powerful features of Grasshopper leverage Rhino's NURBS tools. This video illustrates the concept of reparameterization and discusses why it is critical when working with NURBS curves and surfaces.
- [Instructor] I have my exercise file open already. … In this video, I'm going to talk a little bit … about reparameterization. … Reparameterization is the transformation … of a set of values or numbers, from one interval to another. … This is important because these intervals … are how we interrogate our sample points … from curves and surfaces in Rhino. … So let's take a look, I have a surface here … that I'm visualizing. … I'm going to grab my Evaluate Surface Component, … plug in my surface, plug in my point, … and I can see I'm getting a sample point, … but that sample point is only moving … within a little corner of my surface. … So this is an easy thing to fix, … I right-click, Reparameterize. … And now I've reset the interval of my surface … to be zero to one and zero to one in both axes. … So this is the most common process in Grasshopper … when you're dealing with reparameterization … and typically, within a script, … you'll just reparameterize everything, … so each surface is always being reset …
Note: Because this is an ongoing series, viewers will not receive a certificate of completion.