For an overview, see: [
1]
Also similar to Satellite Navigation / SatNav, for the benefit of folks who search for that while looking for this page.
What : gpsfeed+, a GPS simulator
Where : http://users.hol.gr/~dzach/gpsfeed/index.html
Description : gpsfeed+ is a software GPS simulator, a utility that feeds
the PC with continuous GPS data as if it were traveling
in a car or airplane. NMEA 0183 GPS sentences are sent
to the application through a socket (TCP/IP) connection or
a UDP message. It also outputs the same NMEA data to a serial
port of the PC. Web querying is facilitated by a lightweight
http server.
Current version: 0.58
Updated : 9-Sep-2005
What: GPSBabel
Where: http://sourceforge.net/projects/gpsbabel/
Description: converts waypoint data between over two dozen file
formats, including major Palm, PC, and GPS serial formats.
Includes a Tcl/Tk GUI.
Currently at version 1.1.0 .
Updated: 08/2003
Contact: See web site
What: Netscape client Tcl Tclets (Caldwell)
Where: http://tkfp.sourceforge.net/soarmap (older code)
Starkit version: http://www.tcl.tk/starkits/soarmap2.kit (not latest code)
Latest version allows circling: http://wiki.tcl.tk/9085
Description: A small and large view of a Soaring Task Map chart.
Also the application for gathering GPS data and displaying on
a map where the GPS receiver is lcoated is available.
Updated: 04/26/2005
Contact: mailto:alcald2000@yahoo.com (Alex Caldwell)
What: Eagle
Where: http://magicnet.net/%7Egcash/
Description: Python/Tk application that interactis with a set of Python
classes implementing the NMEA protocol and Lowrance/Eagle protocol -
used in some of the Global Positioning System (GPS) hardware.
Updated: 12/1999
Contact: mailto:gcash@magicnet.net (Gene Cash)