Draw grid and markers on png image or html page

[CDEV-Studio]

How to draw a grid and markers on the map from the received data? I can't understand how coordinates work
monuments x/y from what? map size (3500) or from response (map.width/map.height)

[liamcottle]

I never implemented this, and haven't played Rust in several years. Feel free to send a PR :)