This is the command r.out.asciigrass that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
r.out.ascii - Converts a raster map layer into a GRASS ASCII text file.
KEYWORDS
raster, export, 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=name [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 function, 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 (ignoring 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.
Use r.out.asciigrass online using onworks.net services