NAME¶

xgps - X client for gpsd

SYNOPSIS¶

xgps [OPTIONS] [service[:port[:device]]]

xgps -h

xgps -V

DESCRIPTION¶

xgps is a simple sample client for gpsd with an X interface. It displays current GNSS position/time/velocity information and (for GNSS receivers that support the feature) the locations of accessible satellites.

In the sky view, satellites are color-coded to indicate quality of signal, consult the data display to the left for exact figures in dB. Diamond-shaped icons indicate GLONASS satellites, squares are used for SBAS (e.g. WAAS, EGNOS), circles indicate GPS, and down-, up-, right-, and left-pointing triangles, respectively, indicate Galileo, BeiDou, QZSS, and other systems' satellites (e.g. IMES, IRNSS, as well as unknown systems). Filled icons were used in the current fix, outline icons were not. Hovering over a symbol with the mouse pointer will temporarily display a small popup window with the satellite details from the Satellite List pane.

xgps will run fine as a normal user, and fine as root. Running xgps under sudo will cause some loss of functionality.

OPTIONS¶

-?, -h, --help

-device DEVICE

-D LVL, --debug LVL

--host HOST

-l FMT, --llfmt FMT

-p PORT, --port PORT

-r DEG, --rotate DEG

-V, --version

ARGUMENTS¶

By default, clients collect data from the local gpsd daemon running on localhost, using the default GPSD port 2947. The optional argument to any client may override this behavior: [server[:port[:device]]]

For further explanation, and examples, see the ARGUMENTS section in the gps(1) man page

ENVIRONMENT¶

The XGPSOPTS> environment variable may be set to pass commonly used command line options to xgps. This is often used to set the -u option for locale specific units. XGPSOPTS is processed before the CLI options.

xgps also looks at other variables in the environment to figure out the units for display — imperial, nautical, or metric. Here are the variables and values checked:

    GPSD_UNITS one of:


              i          = miles/feet


              imperial   = miles/feet


              n          = knots/feet


              nautical   = knots/feet


              m          = km/meters


              metric     = km/meters


    LC_MEASUREMENT


              en_US      = miles/feet


              C          = miles/feet


              POSIX      = miles/feet


              [other]    = km/meters


    LANG


              en_US      = miles/feet


              C          = miles/feet


              POSIX      = miles/feet


              [other]    = km/meters

These preferences may be overridden by the -u, or --units option.

The -u option can be used to set the system units for display; follow the keyword with 'i' for 'imperial' for American units (International Feet in altitude and error estimates, miles per hour in speeds), 'n' for 'nautical' (feet in altitude and error estimates, knots in speed) or 'm' for 'metric' (meters in altitude and error estimates, kilometers per hour in speeds).

Note: The USA Survey Foot is not supported.

The environment variable GPSD_UNITS is checked if no unit system is specified on the command line or in XPGSOPTS it may be set to 'i'. 'imperial', 'm', 'metric', or 'n', 'nautical'.

LC_MEASUREMENT and then LANG are checked if no unit system has been specified on the command line, in XPGSOPTS or in GPSD_UNITS. If the value is 'C', 'POSIX', or begins with 'en_US' the unit system is set to imperial. The default if no system has been selected defaults to metric.

RETURN VALUES¶

0

1

SEE ALSO¶

gpsd(8), gps(1), xgpsspeed(1)

RESOURCES¶

Project web site: <https://gpsd.io/>

COPYING¶

This file is Copyright 2013 by the GPSD project
SPDX-License-Identifier: BSD-2-clause

AUTHORS¶

Remco Treffcorn

Derrick Brashear

Russ Nelson

Eric S. Raymond