Mapnik is a high-powered rendering library that can take GIS data from a number of sources (ESRI shapefiles, PostGIS databases, etc.) and use them to render beautiful 2-dimensional maps. It’s used as the underlying rendering solution for a lot of online mapping services, most notably including MapQuest and the OpenStreetMap project, so it’s a truly production-quality framework. And, despite being written in C++, it comes with bindings for Python and Node, so you can leverage it in the language of your choice.
Render Google Maps Tiles with Mapnik and Python
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