Magellan DirectRoute 3.0 Instrukcja Użytkownika Pobierz pdf (Strona 100)

Da-

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or seconds, expressed as one of the character "d", "h", "m", or "s". If no trailing character is present, the

units are assumed to be in seconds.

For example, to split a track based on an four hour interval, use this:

gpsbabel -t -i gpx -f in.gpx -x track,pack,split=4h,title="LOG # %c"

-o gpx -F out.gpx

sdistance option

Split by distance.

The input track will be split into several tracks if the distance between successive track points is greater

than the distance given as a parameter. The distance must be numeric and can be in miles or kilometers,

expressed as one of the character "k", or "m". If sdistance is given no parameters, this option has the same

effect as the split option without parameters. If there is more than one track, use the pack option before

before using this.

For example, to split the track if the distance between points is greater than 100 meters, use this:

gpsbabel -t -i gpx -f in.gpx -x track,pack,sdistance=0.1k" -o gpx -F

out.gpx

The sdistance option can be combined with the split option. The track then will be split only if both time

and distance interval exceeds the supplied values. This technique can be used to filter out gaps from the

tracklog. The gap is kept only if the gps device is without signal for longer time than that given and during

that time it moves a distance over that given. This example splits the track if the device is without signal

for at least 5 minutes and during this time moves more than 300 meters:

gpsbabel -t -i gpx -f in.gpx -x track,pack,sdistance=0.3k,split=5m -o

gpx -F out.gpx

merge option

Merge multiple tracks for the same way.

This option puts all track points from all tracks into a single track and sorts them by time stamp. Points

with identical time stamps will be dropped.

Example 4.7. Merging tracks with the track filter

Suppose you want to merge tracks recorded with two different GPS devices at the same time. To do that,

use this command line:

gpsbabel -t -i gpx -f john.gpx -i gpx -f doe.gpx -x

track,merge,title="COMBINED LOG" -o gpx -F john_doe.gpx

name option

Use only track(s) where title matches given name.

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Magellan DirectRoute 3.0 Instrukcja Użytkownika Strona 100