Cite/Attribute as: Houtman L, G Baldrica-Franklin, and R.E. Roth. 2025. Mapping for a Sustainable World: QGIS Technical Supplement. The University of Wisconsin Cartography Lab. DOI: ...

google-maps-draw-shape-lib is a javascript library written over a small set of the Google Maps API, that allows you to draw a polygon shape over a google map and get it's coordinates.