Line thickness, marker size scales in Makie

I’m currently trying to make sense of how Makie (GLMakie) deals with scaling of element sizes.

I’m trying to make a quick function that visualizes structures for finite element analysis, just simple points and lines that make up the skeleton of a truss or building etc. My current problem is since structures come in a variety of scales, and analysis units can be anywhere from millimeters to meters, it’s currently a trial and error process to get scaling of the features to look right.

I first assumed linewidth, markersize values were on some absolute scale, so I tried making a crude autoscaling functing, but it doesn’t seem to be the case.

Is there some autoscale function in Makie that I’m unaware of?