Navigational Algorithms - Marine navigation
Open Source Desktop GIS with Surveying and Cartography Functionality
Braille & ASCII world map renderer for your console
A reference implementation of the Polish geobotanical grid
OTB is an open-source C++ library for remote sensing images processing
Shortest Path Navigator with Directions and Distance
Basic routing and spatial functions using OpenStreetMap data
OsmSharp - OpenStreetMap (OSM) Library and Tools developed in C#