Constraining cylinders within complex geometry

Grasshopper
,
1

Hi all,

Hoping someone here will be able to help me with this. I’m not too familiar with all the possibilies in Grasshopper and have tried to approach this with a python script but haven’t had any luck so far. I’ve also spent the last hour scouring the internet and YouTube but haven’t found anything useful, pardon if this is a novice question.

Essentially, I have sets of closed polysurfaces which make up a structure, but I need this structure to be made of vertical cylinders instead. I’d like to create a script which takes an array of cylinders and adjusts their heights to be constrained within the closed polysurfaces - I’m choosing to do this over a trim or split as I would like the cylinders to remain XY flat on both ends, if that makes sense.

My file is attached, I internalized the data but please let me know if anything is missing.

Thank you!!

cylinders_GPT.gh (1.5 MB)

2

Hello
here is a way with Mesh Ray, the idea is to make a bounding box, so calculate the extend of the geometries, then make a grid with Diameter of tube, then use this grid to make points on the top and bottom of geometry, throw some ray toward the geometry and if intersection draw a line that will be used to make cylinders

image
image1237×779 90.8 KB

Mesh is used here as it could be joined easily.
There is also a component for Brep but I didn’t find a more simple way to use it.
cylinders_still_human_answering_LD.gh (1.5 MB)

3

Thank you!

This solves my issue perfectly, and thank you for providing the file - I’ll go dissect it now and learn how these nodes piece together. Your way of thinking makes a lot more sense than what I originally imagined.