Magellan DirectRoute 3.0 Manual de usuario descargar pdf (Pagina 104)

Da-

Fil-

ters

Example 4.10. Using the duplicate filter to suppress points with the same name and

location

This command line removes points that have duplicate short names and duplicate locations. The result

would be a gpx file that more than likely contains only unique points and point data.

gpsbabel -i gpx -f 1.gpx -f 2.gpx -x duplicate,location,shortname -o

gpx -F merged_with_no_dupes.gpx

shortname option

Suppress duplicate waypoints based on name.

This option is the one most often used with the duplicate filter. This option instructs the duplicate filter to

remove any waypoints that share a short name with a waypoint that has come before. This option might be

used to remove duplicates if you are merging two datasets that were each created in part from a common

ancestor dataset.

location option

Suppress duplicate waypoint based on coords.

This option causes the duplicate filter to remove any additional waypoint that has the same coordinates

(to six decimal degrees) as a waypoint that came before. This option may be used to remove duplicate

waypoints if the names are not expected to be the same. It also might be used along with the shortname

option to remove duplicate waypoints if the names of several unrelated groups of waypoints might be the

same.

all option

Suppress all instances of duplicates.

When this option is specified, GPSBabel will remove all instances of a duplicated waypoint, not just the

second and subsequent instances. If your input file contains waypoints A, B, B, and C, the output file will

contain waypoints A, B, and C without the all option, or just A and C with the all option.

Example 4.11. Using the duplicate filter to implement an "ignore list."

This option may be used to implement an "ignore list." In the following example, the duplicate filter is

used to remove a list of waypoints to be ignored from a larger collection of waypoints:

gpsbabel -i gpx -f waypoints.gpx -i csv -f to_ignore.csv -x

duplicate,shortname,all -o gpx -F filtered.gpx

correct option

Use coords from duplicate points.

This option is used to change the locations of waypoints without losing any of the other associated infor-

mation. When this option is specified, the latitude and longitude from later duplicates will replace the

latitude and longitude in the original waypoint.

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Magellan DirectRoute 3.0 Manual de usuario Pagina 104