# Phyllotaxis for facade panel pattern

I’ve just completed Gerard Nicholson’s Gherkin Dynamo Graph tutorial (which I recommend). See links below and graph attached.
https://www.autodesk.com/autodesk-university/class/Gherkin-Cloud-Fusion-360-Dynamo-Revit-Workflow-2018Gherkin_2019.02.21.dyn (50.9 KB)

I’m now wondering how the panels can be adapted to take on a Phyllotactic pattern rather than the diamond pattern in which all points are clearly horizontally and vertically aligned/ stacked. In other words, I’m trying to modify the graph to look more like a pineapple or pinecone, following the fibonacci series with no clear vertical or horizontal datums.

I’m starting with the dynamo primer exercise/graph on Phyllotaxis and hoping to apply it to a 3D lofted surface rather than the single flat plane in the original exercise. I would greatly appreciate any initial guidance/links anyone can provide and I will keep posting my progress on a working graph in the comments below. Thanks!

Phyllotactic_Gherkin_2019.02.21.dyn (86.4 KB)

To place adaptive panels you need a list of points organized in this way
List
0 List
1
2
3
4
1 List
1
2
3
4
Start this exercise by using a Conceptual mass family.

1 Like

I will try to make a list of points that corresponds to these cylindrical diagrams:

Referred to this to come up with the script below.
A Code to Node exercise should get you started.

``````//Gherkin Surface
(Point.ByCoordinates(0,0,[0,85,168,173,175]),[25,28,11,7,3]));

//Density
n = 1000;

//Alpha
a = 137.5;

//Phyllotactic Points
pt01 = Point.ByCylindricalCoordinates(CoordinateSystem.Identity(),
(0..n)*a,0, Math.Sqrt(0..n));

//Determining Point Parameters to map to surface