grid2poster generates print-ready PNG/SVG/PDF posters of transmission infrastructure from OpenStreetMap data using GeoPandas, OSMnx, and Matplotlib.
Key Takeaways
Supports countries, states, provinces, continents, and custom GeoJSON boundaries; predefined regions include Continental Europe, MENA, WAPP, and Southeast Asia.
Outputs PNG, SVG, and PDF at configurable DPI and paper sizes (A0-A5, letter, tabloid); both portrait and landscape orientations supported.
Data quality depends on OSM coverage; MapYourGrid community initiative provides tooling to improve transmission line completeness by country.
Continent-scale runs (e.g. Africa, Global) tile Overpass API queries and can take several hours; increase –tile-size-km to reduce query count.
Optional flags expose minor lines, underground cables, GeoJSON export, and custom CRS projection for non-Mercator renders.
Hacker News Comment Review
Only one comment so far, and it is not technical – the sole commenter wished the project made propagandistic posters about grid policy rather than geographic visualizations.
