Convert 2D coordinates to 3D objects (walls)

[hofk]

Maybe you can use some of it?

Showrooms easy to generate from data of a construction drawing or dimensional sketch - now on Github

2022 - now on GitHub - hofk/SHOWROOM: Showrooms easy to generate from data of a construction drawing or dimensional sketch. Try it out. You look in the mirror first. Walk around. SHOWROOM You will find a whole range of tools for displaying buildings and rooms along with their furnishings. Among them are both firmly defined and interactive ones. In this case, the basis for the design of flexibly configurable rooms is a construction drawing or a simple dimensional sketch. The data is written…

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UPDATE

If you want it to be really simple, you can do something like this.

ExtrudedShapeWithHole

(from the Collection of examples from discourse.threejs.org)