NAME
v.out.ascii - Convert a GRASS binary vector map to a GRASS ASCII vector map
SYNOPSIS
v.out.ascii
v.out.ascii help
v.out.ascii [-o] input=string [output=string] [format=string]
Flags:
- -o
- create old (version 4) ascii file
Parameters:
- input=string
- Name of input vector
- output=string
- path to resulting ascii file or ASCII vector name if '-o' is defined
- format=string
- output format
- Options: point,standard
- Default: point
DESCRIPTION
v.out.ascii
converts a GRASS vector map in binary format to a GRASS vector map in ASCII
format. Using flag -o v.out.ascii output will be in old
(version 4) ASCII format.
If the output parameter is not given then the coordinates of any
point data within the vector file is sent to stdout.
NOTES
The GRASS program v.in.ascii
performs the function of v.out.ascii in reverse; i.e., it
converts vector files in ASCII format to their binary format.
These two companion programs are useful both for importing and exporting
vector files between GRASS and other software, and for transferring data
between machines.
The order of coordinates for new (standard) version of ASCII file is
X Y [Z]
the order of coordinates for old version of ASCII file is
Y X
If old version is requested, the output files from v.out.ascii will be placed
in the $LOCATION/$MAPSET/dig_ascii/ and $LOCATION/$MAPSET/dig_att directory.
v.out.ascii does not copy the dig_cats
file associated with the binary vector input map
to the new output file name. The user must copy
the dig_cats file to the new output name
if this is desired (e.g., using the UNIX cp
command).
It is possible to output the coordinates of vertices in a non-points vector
feature by first converting the vector feature to a points map with
v.to.points and then exporting with v.out.ascii in
points mode.
SEE ALSO
v.in.ascii,
v.to.points
AUTHORS
Michael Higgins,
U.S. Army Construction Engineering
Research Laboratory
James Westervelt,
U.S. Army Construction Engineering
Research Laboratory
Radim Blazek, ITC-Irst, Trento, Italy
Last changed: $Date: 2005/05/10 08:45:40 $
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