diff options
-rw-r--r-- | gps.xml | 26 |
1 files changed, 19 insertions, 7 deletions
@@ -89,7 +89,7 @@ current GPS position/time/velocity information and (for GPSes that support the feature) the locations of accessible satellites.</para> -<para>In the sky view, salleties are color-coded to indicate quality +<para>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 icons indicate WAAS/EGNOS satellites, circles indicate ordinary GPS satellites. Filled icons were used in the last fix, @@ -115,9 +115,12 @@ altitude units for display; follow the keyword with 'meters' or 'feet'. The default is feet. This option can also be set as the X resource 'altunits'.</para> -<para>The <option>-j</option> option tells the daemon to hold fix -data across cycles, eliminating jitter from NMEA devices that emit -several partial reports.</para> +<para>The <option>-j</option> option tells the daemon to hold fix data +across cycles, eliminating jitter from NMEA devices that emit several +partial reports. The downside is that with this switch on the client +will occasionally report stale or invalid data held over from a +previous cycle. This option is ineffective, and not needed, on +SiRFs and most other non-NMEA GPSes.</para> <para> The <option>-l</option> option sets the format of latitude and longitude reports. The value 'd' produces decimal degrees and is the @@ -156,9 +159,7 @@ terminal emulator.</para> from printing the raw data. This display can also be toggled with the s command.</para> -<para>The <option>-j</option> option tells the daemon not to clear -data at start of cycle, eliminating jitter from NMEA devices that emit -several partial reports per cycle.</para> +<para>The <option>-j</option> option is as described for xgps above.</para> <para>Rather than use X resources to determine which units to use, <application>cgps</application> looks at variables in its environment. @@ -196,6 +197,17 @@ for discussion.</para> <para>This program connects to gpsd, polls for location, and logs each fix to standard output in GPX (XML) format.</para> +<para>The <option>-s</option> and <option>-p</option> options can be +used to specify a server and port to query.</para> + +<para>The <option>-i</option> option sets the poll interval at which +the logger will collect samples.</para> + +<para>The <option>-j</option> option is as described for xgps above.</para> + +<para>The <option>-h</option> option causes the program to emit a summary of its +options and then exit.</para> + <para>The program also writes start and end messages to syslog.</para> </refsect2> |