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r.out.ascii(1)		    GRASS GIS User's Manual		r.out.ascii(1)

NAME
       r.out.ascii   -	Converts  a  raster  map layer into a GRASS ASCII text
       file.

KEYWORDS
       raster, export, output, ASCII

SYNOPSIS
       r.out.ascii
       r.out.ascii --help
       r.out.ascii  [-hsmi]  input=name	  [output=name]	   [precision=integer]
       [width=integer]	    [null_value=string]	     [--overwrite]    [--help]
       [--verbose]  [--quiet]  [--ui]

   Flags:
       -h
	   Suppress printing of	header information

       -s
	   Write SURFER	(Golden	Software) ASCII	grid

       -m
	   Write MODFLOW (USGS)	ASCII array

       -i
	   Force output	of integer values

       --overwrite
	   Allow output	files to overwrite existing files

       --help
	   Print usage summary

       --verbose
	   Verbose module output

       --quiet
	   Quiet module	output

       --ui
	   Force launching GUI dialog

   Parameters:
       input=nameA [required]
	   Name	of input raster	map

       output=name
	   Name	for output ASCII grid map (use out=- for stdout)

       precision=integer
	   Number of significant digits	(floating point	only)

       width=integer
	   Number of values printed before wrapping a  line  (only  SURFER  or
	   MODFLOW format)

       null_value=string
	   String to represent null cell (GRASS	grid only)
	   Default: *

DESCRIPTION
       r.out.ascii  converts  a	 user-specified	 raster	map layer (input=name)
       into an ASCII grid in a text file (output=name) suitable	for export  to
       other computer systems.

       The  GRASS  program r.in.ascii can be used to perform the reverse func-
       tion, converting	an ASCII file in suitable format to GRASS  raster  map
       format.

       To  write  a  SURFER  .grd ASCII	GRID file (with	reverted row order and
       different header) use the -s flag:
       r.out.ascii -s input=inname output=outname.grd [dp=value]
       NULL data are coded to "1.70141e+038" for SURFER	ASCII GRID files  (ig-
       noring the null=	parameter).

NOTES
       The output from r.out.ascii may be placed into a	file by	using the UNIX
       redirection mechanism; e.g.:
       r.out.ascii input=soils output=-	> out.file
       The output file out.file	can then be printed or copied onto a CDROM  or
       floppy disk for export purposes.

       To  export  the	raster values as x,y,z values of cell centers (one per
       line) use the r.out.xyz module.

SEE ALSO
	r.in.ascii, r.in.gdal, r.out.bin, r.out.gdal, r.out.xyz

AUTHOR
       Michael Shapiro,	U.S. Army Construction Engineering Research Laboratory

       Surfer support by Markus	Neteler

SOURCE CODE
       Available at: r.out.ascii source	code (history)

       Main index | Raster index | Topics index	| Keywords index  |  Graphical
       index | Full index

       A(C) 2003-2020 GRASS Development	Team, GRASS GIS	7.8.4 Reference	Manual

GRASS 7.8.4							r.out.ascii(1)

NAME | KEYWORDS | SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | AUTHOR | SOURCE CODE

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