The goal of this project is to provide software for creating simple home-made sextants that can be used to find the heights of trees, buildings, or hills.
Importantly, these sextants cannot be used to take readings of the sun, because they do not provide a light-blocking mechanism that guards against eye damage.
Please see https://dankelley.github.io/sextant/articles/sextant.html for details of constructing and using these sextants.