...The original JUMP was developed by Vivid Solutions, released under GPL2 in 2003 and discontinued in 2006.
During 2004 already some enthusiastic developers joined together to enhance further the features of JUMP. They launched an independent development branch called OpenJUMP. The name gives credit to the original JUMP development, and at the same time describes the objectives of this project to be fully open to anyone wanting to contribute.
These days OpenJUMP is developed and maintained by (some few) volunteers around the globe. ...
GISpatialNet is a Java-based tool for mapping network data (nodes and edges between them) to spatial coordinates; reformatting network and spatial data together; and calculating spatial network measures.
Install by saving to c:\ drive and typing the following in a command line:
java -jar c:\GISpatialNet-0.9b.jar
Use map data to plan hikes or explore new areas. Includes 3D maps of terrain rendered in real-time; trace trails across the terrain and get height verses distance profiles; tile together adjacent maps to create seamless map areas. Reads USGS SDTS files.