Samuel Higgins asked a bit of explanation about what I mean with “…the groups of horizontal mullions follow a nonlinear distribution controlled by splines drawn in Revit”. Sadly I have seen its comment rather late. But better late than never….
Imagine that you are making a distribution of points in a curve (Cu):
-If you think in equal distance you will make point at distance with 0…(Cu.Length)…#NumberOfDivisions
-But maybe you prefer a not linear distribution of points. For sure you can define a mathematical expression. But won’t it be nicer just to draw a spline and let Dynamo to “read” our design intention?
-You can define a very simple function that takes the spline and return a list of values between 0…1 following, for example, the proportion of the X increment. Later you can use that list for making points in the original curve, with a non linear distribution controlled by the spline.
This is just a very little sample. But things become really interesting when you use this for controlling UV surface divisions.