--- /dev/null
+<appendix id="Datums">
+<title>Supported Datums</title>
+<para>
+Some formats in GPSBabel support multiple datums. For example, the
+<option>datum</option> option to the
+<link linkend="fmt_garmin_txt">garmin_txt</link> format allows you to specify
+a datum for the output file.
+</para>
+<para>
+The following is a list of the datums supported by GPSBabel.
+</para>
+
+<simplelist columns="5">
+<member>Adindan</member>
+<member>AFG</member>
+<member>Ain-El-Abd</member>
+<member>Alaska-NAD27</member>
+<member>Alaska-Canada</member>
+<member>Anna-1-Astro</member>
+<member>ARC 1950 Mean</member>
+<member>ARC 1960 Mean</member>
+<member>Asc Island 58</member>
+<member>Astro B4</member>
+<member>Astro Beacon E</member>
+<member>Astro pos 71/4</member>
+<member>Astro stn 52</member>
+<member>Australia Geo 1984</member>
+<member>Bahamas NAD27</member>
+<member>Bellevue IGN</member>
+<member>Bermuda 1957</member>
+<member>Bukit Rimpah</member>
+<member>Camp_Area_Astro</member>
+<member>Campo_Inchauspe</member>
+<member>Canada_Mean(NAD27)</member>
+<member>Canal_Zone_(NAD27)</member>
+<member>Canton_Island_1966</member>
+<member>Cape</member>
+<member>Cape_Canaveral_mean</member>
+<member>Carribean NAD27</member>
+<member>Carthage</member>
+<member>Cent America NAD27</member>
+<member>Chatham 1971</member>
+<member>Chua Astro</member>
+<member>Corrego Alegre</member>
+<member>Cuba NAD27</member>
+<member>Cyprus</member>
+<member>Djakarta(Batavia)</member>
+<member>DOS 1968</member>
+<member>Easter lsland 1967</member>
+<member>Egypt</member>
+<member>European 1950</member>
+<member>European 1950 mean</member>
+<member>European 1979 mean</member>
+<member>Finnish Nautical</member>
+<member>Gandajika Base</member>
+<member>Geodetic Datum 49</member>
+<member>Ghana</member>
+<member>Greenland NAD27</member>
+<member>Guam 1963</member>
+<member>Gunung Segara</member>
+<member>Gunung Serindung 1962</member>
+<member>GUX1 Astro</member>
+<member>Herat North</member>
+<member>Hjorsey 1955</member>
+<member>Hong Kong 1963</member>
+<member>Hu-Tzu-Shan</member>
+<member>Indian</member>
+<member>Iran</member>
+<member>Ireland 1965</member>
+<member>ISTS 073 Astro 69</member>
+<member>Johnston Island 61</member>
+<member>Kandawala</member>
+<member>Kerguelen Island</member>
+<member>Kertau 48</member>
+<member>L.C. 5 Astro</member>
+<member>La Reunion</member>
+<member>Liberia 1964</member>
+<member>Luzon</member>
+<member>Mahe 1971</member>
+<member>Marco Astro</member>
+<member>Masirah Is. Nahrwan</member>
+<member>Massawa</member>
+<member>Merchich</member>
+<member>Mexico NAD27</member>
+<member>Midway Astro 61</member>
+<member>Mindanao</member>
+<member>Minna</member>
+<member>Montjong Lowe</member>
+<member>Nahrwan</member>
+<member>Naparima BWI</member>
+<member>North America 83</member>
+<member>N. America 1927 mean</member>
+<member>Observatorio 1966</member>
+<member>Old Egyptian</member>
+<member>Old Hawaiian_mean</member>
+<member>Old Hawaiian Kauai</member>
+<member>Old Hawaiian Maui</member>
+<member>Old Hawaiian Oahu</member>
+<member>Oman</member>
+<member>OSGB36</member>
+<member>Pico De Las Nieves</member>
+<member>Pitcairn Astro 67</member>
+<member>S. Am. 1956 mean(P)</member>
+<member>S. Chilean 1963 (P)</member>
+<member>Puerto Rico</member>
+<member>Pulkovo 1942</member>
+<member>Qornoq</member>
+<member>Quatar National</member>
+<member>Rome 1940</member>
+<member>S-42(Pulkovo1942)</member>
+<member>S.E.Asia_(Indian)</member>
+<member>SAD-69/Brazil</member>
+<member>Santa Braz</member>
+<member>Santo (DOS)</member>
+<member>Sapper Hill 43</member>
+<member>Schwarzeck</member>
+<member>Sicily</member>
+<member>Sierra Leone 1960</member>
+<member>S. Am. 1969 mean</member>
+<member>South Asia</member>
+<member>Southeast Base</member>
+<member>Southwest Base</member>
+<member>Tananarive Obs 25</member>
+<member>Thai/Viet (Indian)</member>
+<member>Timbalai 1948</member>
+<member>Tokyo mean</member>
+<member>Tristan Astro 1968</member>
+<member>United Arab Emirates</member>
+<member>Viti Levu 1916</member>
+<member>Wake Eniwetok 60</member>
+<member>WGS 72</member>
+<member>WGS 84</member>
+<member>Yacare</member>
+<member>Zanderij</member>
+<member>Sweden</member>
+</simplelist>
+</appendix>
+
-
-
-
- <para>
- garmin_txt is a format that contains nearly all information as in the MapSource main format, GDB.
-garmin_txt has some computed values like distances between routepoints and trackpoints, speed, and course (heading) in addition to the standard data fields.
- </para>
- <para>
+<para>
+This is a textual format that contains nearly all of the information
+contained in the MapSource main format, <link linkend="fmt_gdb">GDB</link>.
+This format also contains some computed values such as distances between
+routepoints and trackpoints, speed, and course (heading).
+</para>
+<para>
The main goal of garmin_txt is to make aviation data more available. Because
MapSource supports only the export, GPSBabel gives you the possibility to
bring aviation data into MapSource.
- </para>
- <para>
+</para>
+<para>
During the export with MapSource, some fields are written using local settings
of MapSource and Windows. These include grid format, gps datum, distance and
temperature units, and the representation of date and time fields. GPSBabel
tries to read all items automatically. Problems with date and time format can
-be solved with the options 'date' and 'time'.
- </para>
- <para>Options:</para>
- <para><option>date</option> - input/output date format (Windows-like. For example "YYYY/MM/DD")</para>
- <para><option>datum</option> - write coodinates using this (GPSBabel known!) datum </para>
- <para><option>dist</option> - output unit for distance values, M (=metric, m/km/kph) or S (=statue, ft/mi/mph)</para>
- <para><option>prec</option> - write coordinates with precision # (# numbers behind dot)</para>
- <para><option>temp</option> - output unit for temperature values, C (=celsius) or F (=fahrenheit)</para>
- <para><option>time</option> - input/output time format (Windows-like For example, "hh:mm:ss xx")</para>
- <para><option>utc</option> - write timestamps x hours relative to UTC</para>
- <example id="all_garmin_txt_options">
- <title>Command showing garmin_txt output with all options</title>
- <screen format="linespecific">gpsbabel -i garmin_txt,date="MM/DD/YYYY",time="hh:mm:ss xx" \
- -f in.txt \
- -o garmin_txt,date="DD.MM.YYYY",datum="WGS 72",dist=m,prec=6,temp=c,time="HH:mm:ss",utc=+2 \
- -F out.txt
- </screen>
- </example>
+be solved with the 'date' and 'time' options.
+</para>
+<example id="all_garmin_txt_options">
+ <title>Command showing garmin_txt output with all options</title>
+ <screen format="linespecific">gpsbabel -i garmin_txt,date="MM/DD/YYYY",time="hh:mm:ss xx" -f in.txt -o garmin_txt,date="DD.MM.YYYY",datum="WGS 72",dist=m,prec=6,temp=c,time="HH:mm:ss",utc=+2 -F out.txt</screen>
+</example>