Blender addons to make the bridge between Blender and geographic data
An implementation of the Grammar of Graphics in R
Flexible tool to build planet-scale vector tilesets
Make OpenStreetMap vector tiles without the stack
A premier mind-mapping software written in Java
Toolkit for working with and mapping geospatial data
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
rayshade and POV for Mathematica Export + view
Offline vector map display ported from OsmAnd
Concise spatial query and representation system (c-squares)
Geostatistics and geosciences modeling software
open source python packages for X-ray MicroLaue Diffraction analysis
3D .NET engine for Windows, Linux, Mac
The most popular mindmapping and brainstorming software