GeographicLib is a small set of C++ classes for performing conversions
between geographic, UTM, UPS, MGRS, geocentric, and local cartesian
coordinates, for gravity (e.g., EGM2008), geoid height, and geomagnetic
field (e.g., WMM2010) calculations, and for solving geodesic problems.
The library may be used from .NET applications using the NETGeographicLib
wrapper library. It is a suitable replacement for the core functionality
provided by geotrans.
gkrellmoon is a moon clock plugin for Gkrellm2. This plugin is based
upon the glunarclock and wmMoonClock applications.
The port is based on the original gkrellmoon port for Grellm1 by Patrick Li.
Xearth sets the X root window to an image of the Earth, as
seen from your favorite vantage point in space, correctly
shaded for the current position of the Sun. By default,
xearth updates the displayed image every five minutes. The
time between updates can be changed with the -wait option.
Xearth can also render directly into PPM and GIF files
instead of drawing in the root window.
There are three additional marker files installed in
/usr/local/lib/X11/xearth which specify the locations of
various FreeBSD people and places:
freebsd.committers.markers - FreeBSD committers
freebsd.submitters.markers - FreeBSD submitters
freebsd.ftp.markers - FreeBSD FTP mirrors
gpsd is a service daemon that monitors one or more GPSes
attached to a host computer through serial or USB ports,
making all data on the location/course/velocity of the
sensors available to be queried on TCP port 2947 of the
host computer. With gpsd, multiple GPS client applications
(such as navigational and wardriving software) can share
access to GPSes without contention or loss of data. Also,
gpsd responds to queries with a format that is substantially
easier to parse than the NMEA 0183 emitted by most GPSes.
GpsDrive is a car (bike, ship, plane) GPS navigation system.
GpsDrive displays the position provided from a NMEA-capable GPS receiver on
a zoomable map. The map file is autoselected depending on the position and
preferred scale. Speech output is supported if the "festival" software is
running. Waypoint database is supported via MySQL (optional).
GPS Manager (GPSMan) is a graphical manager of GPS data that
makes possible the preparation, inspection and edition of GPS data in
a friendly environment. GPSMan supports communication and real-time
logging with both Garmin and Lowrance receivers and accepts real-time
logging information in NMEA from any GPS receiver.
Xphoon sets X the root window to a picture of the moon in its current phase.
The GPSTk is an open source C++ library for developing GPS applications.
The GPSTk suite consists of a core library, auxiliary libraries, and a set
of applications. The GPSTk provides a wide array of functions that solve
processing problems associated with GNSS such as processing or using
standard formats such as RINEX. The libraries are the basis for the more
advanced applications distributed as part of the GPSTk suite.
jday and j2d are command line utilities to convert calendar dates
to astronomical julian dates, and julian dates to calendar dates.
There is a corresponding library libjday.a which can be used for
the same functionality within applications.
Libkgeomap is a KDE4 C++ wrapper around world map components such as Marble,
OpenstreetMap, and GoogleMap, for browsing and arranging photos on such maps.