1r.out.ascii(1)                Grass User's Manual               r.out.ascii(1)
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NAME

6       r.out.ascii  - Converts a raster map layer into an ASCII text file.
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KEYWORDS

9       raster, export
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SYNOPSIS

12       r.out.ascii
13       r.out.ascii help
14       r.out.ascii   [-hsmi]   input=string    [output=string]    [dp=integer]
15       [width=integer]   [null=string]
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17   Flags:
18       -h  Suppress printing of header information
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20       -s  Write SURFER (Golden Software) ASCII grid
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22       -m  Write MODFLOW (USGS) ASCII array
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24       -i  Force output of integer values
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26   Parameters:
27       input=string
28           Name of an existing raster map
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30       output=string
31           Name for output ASCII grid map (use out=- for stdout)
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33       dp=integer
34           Number of significant digits (floating point only)
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36       width=integer
37           Number of values printed before wrapping a  line  (only  SURFER  or
38           MODFLOW format)
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40       null=string
41           String to represent null cell (GRASS grid only) Default: *
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DESCRIPTION

44       r.out.ascii  converts  a  user-specified  raster map layer (input=name)
45       into an ASCII text file (output=name) suitable for export to other com‐
46       puter systems.
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48       The  GRASS  program r.in.ascii can be used to perform the reverse func‐
49       tion, converting an ASCII file in suitable format to GRASS raster  file
50       format.
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52       To  write  a  SURFER  .grd ASCII GRID file (with reverted row order and
53       different header) use the -s flag:
54       r.out.ascii -s input=inname output=outname.grd [dp=value]
55        NULL data are coded to "1.70141e+038"  for  SURFER  ASCII  GRID  files
56       (ignoring the null= parameter).
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NOTES

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

66       r.in.ascii, r.in.arc
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AUTHOR

69       Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
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71       Surfer support by Markus Neteler
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73       Last changed: $Date: 2005/12/12 14:53:40 $
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75       Full index
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79GRASS 6.2.2                                                     r.out.ascii(1)