This repo contains Geometry nodes generating the images shown below. Most scenes are downloadable on my gumroad. I also make some tutorials randomly on bilibili
There are some awesome GN toolsets which can save you a lot of time but need some fundenmetal knowledge, such as bradley, Erindale and Higgsas.
Most projects can work fine in 3.3+.
Inspired by the animation created by Greg Joswiak shown at the Far Out Apple event.
3.4+ inspired from @Nick_Encrypt
Works fine on sloped surfaces, but due to the original design it is difficult to run the wire perpendicular to the slope.
I think it is in line with daily usage to directly point the column to the z direction. If the vertical slope must be vertical, you can use the cross product of the tangentand normal vectors, but that will cause crossing. It’s okay if the direction is the same, but there will be big problems if they don’t. In short, you can’t have both