Magellan DirectRoute 3.0 Manual do Utilizador descarregar pdf (Página 107)

Da-

Fil-

ters

'swap' function to replace each copy with a filtered list. Finally, append all of the filtered lists to create one

big list, which is then output. The following example finds a list of all points that are either inside county

A or inside county B. Any points that are inside both counties are duplicated (but the duplicates can be

removed with the DUPLICATE filter; see above.)

gpsbabel -i gpx -f in.gpx -x stack,push,copy -x

polygon,file=county_a.txt -x stack,swap -x polygon,file=county_b.txt -x

stack,pop,append -o gpx -F out.gpx

This example reads a large list of waypoints and extracts the points within 20 miles of each of two cities,

writing the waypoint descriptions into two different PalmDoc files and exporting all of the points to the

GPS receiver:

gpsbabel -i gpx -f indiana.gpx -x stack,push,copy -x

radius,lat=41.0765,lon=-85.1365,distance=20m -o palmdoc,dbname=Fort\

Wayne -F fortwayne.pdb -x stack,swap -x radius,lat=39.7733,lon=-

86.1433,distance=20m -o palmdoc,dbname=Indianapolis -F indianapolis.pdb

-x stack,pop,append -o magellan -F fwaind.wpt

push option

Push waypoint list onto stack.

This is one of three "primary" options to the stack filter.

When this option is specified, the current state is pushed onto the top of the stack. By default, the current

state is then cleared, but the copy option can be used to cause it to be saved.

pop option

Pop waypoint list from stack.

This is one of three "primary" options to the stack filter.

This option "pops" the collection of data from the top of the stack. By default, the saved state replaces the

current state, but see the discard and append options for alternatives.

swap option

Swap waypoint list with <depth> item on stack.

This is one of three "primary" options to the stack filter.

When this option is specified, the current state is swapped with a saved state from the stack. By default, it

is swapped with the top of the stack, but the depth can be used to specify a different saved state.

copy option

(push) Copy waypoint list.

This option is only valid when used with the push option. When this option is specified, a copy of the

current state is pushed onto the stack but the current state is left unchanged. Otherwise, the push operation

clears the current data collection.

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Magellan DirectRoute 3.0 Manual do Utilizador Página 107