Grasshopper Close Packed Bamboo Bundling based on Culm Number

[Terence_Szeto]

Hello everyone,

I am currently working on a bamboo high-rise architectural proposal which involves bundles of culms, which the structural members ranges from 20-100 culms. From the 2D screenshot I have attached, I am manually arranging the culms in the most efficient way possible (no gaps in between).

I would like to ask is there any suggestions that I can input a number, say 73, to attain the efficient, close packed arrangement of 73 bamboo culms? (2D cross section is enough for now, would apprecieate if there is a way for 3D also)

I have also attached a script that I have been using, to generate bamboo bundles based on number, but it is not quite doing what I

want since the cross section is hollow.

Thank you very much.

THE GOAL: NUMBER INPUT AND GENERATION OF EFFECTIVE BUNDLE SECTION:

CURRENT HOLLOW BUNDLING (not closely packed and won’t work for actual design):

20260203_Simple Bamboo Bundling.gh (19.5 KB)

THE BAMBOO TOWER:

[Edr (Eddard)]

What would be priorities for bundling? As your circle packing results in different silhouettes (circle, hexagon, rectangle, triangle) and each shape would require different algorithm.

Some are packed in hex grid, some in square grid and others are a mix. So maybe build a library for each grid and compare perimeter or area.

This could be useful if efficiency is what matters
https://mathweb.ucsd.edu/~ronspubs/98_01_circles.pdf
And check forum for sphereCollide scripts

e.g.

sphereCollide.gh (25.3 KB)

[laurent_delrieu]

Hello
I would reuse this one with constant radius

KANGAROO2 Circle Packing - Different sized circles

Here’s one tensioning a cable around the outside wrapcircles.gh (16.6 KB) [circwrap] This way the boundary will form a convex hull of the circles - if you want the boundary to also pull into the concave parts then you’ll need a version with 2d pressure.

2

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20

50

73

100

wrapcircles_constant_radius.gh (17.8 KB)

See also this link

Tube Bundling/Branching

I’m working on a script that would turn a branching tree structure into a bundle of tubes. The first thing I do is analyze the network to find out how many tubes are at each node (assuming a branch continues from the base all the way to the top). [image] After this, I have a little python code that creates a polygon with fixed edge lengths that would be the diameter of the tube. The midpoints of these polygons edges would be the new location of the tube centers. [image] Finally, I have a…