...ISO19115/19139/19119, ISO19115-3, DCAT-AP, CSW 2.0, OGC API Records). It originates from the United Nations and is used by many governments as geoportal software.
Active development and discussion takes place on GitHub and OSGeo Discourse. You can also connect directly with the companies supporting the development.
Source code available on github https://github.com/geonetwork/
An information system for cyclists in Berlin and Brandenburg
A bike information system for cyclists in Berlin and Brandenburg (Germany) with a map view and a routing engine. There's a graphical interface (based on Perl/Tk) as well as an Web interface.
Source code may be found at Github: https://github.com/eserte/bbbike/
UPDATE March 14, 2018
Repository and tracking officially moved to github. https://github.com/opticks-org/opticks
Sourceforge mailing lists are still in use.
Opticks is an open source remote sensing application and development framework.
Geoclipse is a collection of Eclipse plugins, that allow you to add mapping capabilities to your Eclipse Rich Client applications. Current development happens on github! http://michaelkanis.github.com/geoclipse
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GPSylon is a Java moving map application that is able to display maps like in an atlas and show your position by the use of a gps device. It may track your path, load overlays (e.g. shape files), download maps from expedia servers. - The source code was moved to github!