Magellan DirectRoute 3.0 Instrukcja Użytkownika Pobierz pdf (Strona 19)

Us-

age

gpsbabel -i geo -f 1.loc -i gpx -f 2.gpx -i pcx 3.pcx -o gpsutil -F

big.gps

You can write the same data in different output formats:

gpsbabel -i geo -f 1.loc -o gpx -F 1.gpx -o pcx -F 1.wpt

If you want to change the character set of input or/and output side you can do this with the option -c

<character set>. You can get a complete list of supported character sets with "gpsbabel -l". To

change the character set on both sides you should do this:

gpsbabel -i xcsv,style=foo.style -c latin1 -f foo -o

xcsv,style=bar.style -c ms-ansi -F bar

Note, that some formats have a fixed character set and ignore this option.

Route and Track Modes

Most formats supported by GPSBabel will make a reasonable attempt to work transparently with way-

points, tracks, and routes. Some formats, like garmin and magellan require the -t flag to work with tracks

and -r to work with routes. -w is for waypoints, and is the default. So if you wanted to read all data from

a Magellan Meridian GPS receiver into a gpx file, you might use a command like:

gpsbabel -t -r -w -i magellan -f com1: -o gpx -F backup.gpx

Tracks and routes are advanced features and don't try to handle every possible hazard that can be encoun-

tered during a conversion. If you're merging or converting files of similar limitations, things work very

well.

Many of those hazards can be overcome with our filters but there are often compromises to be made.

For example, if you have a GPX route that contains 150 turn points but you're sending the route to a

GPS receiver that supports only 30 turnpoints, something has to go. One might use our 'simplify' filter to

produce a route that retained the 30 most mathematically significant turnpoints but that may not really be

the route you had in mind.

Tracks and routes will sometimes be converted to a list of waypoints when necessary, One example is

when writing into one of the CSV formats. The inverse operation is not supported right now, so reading

the converted track back from CSV will always result in a list of waypoints, not the original track.

The presence of -s on the command line tends to creats havoc on tracks and routes since many of these

formats rely on internal linkages between such points and renaming them may break those linkages. In

general, don't use -s when tracks or routes are present.

Working with predefined options

GPSBabel can read a file on startup to set defaults for options. All module and filter options may be set

this way.

The format of the file is identical to the inifile-format often seen on Windows. Here is an example:

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 129 130

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Magellan DirectRoute 3.0 Instrukcja Użytkownika Strona 19