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

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

10       raster, export, output, ASCII
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SYNOPSIS

13       r.out.ascii
14       r.out.ascii --help
15       r.out.ascii  [-hsmi]  input=name   [output=name]    [precision=integer]
16       [width=integer]      [null_value=string]      [--overwrite]    [--help]
17       [--verbose]  [--quiet]  [--ui]
18
19   Flags:
20       -h
21           Suppress printing of header information
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23       -s
24           Write SURFER (Golden Software) ASCII grid
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26       -m
27           Write MODFLOW (USGS) ASCII array
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29       -i
30           Force output of integer values
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32       --overwrite
33           Allow output files to overwrite existing files
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35       --help
36           Print usage summary
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38       --verbose
39           Verbose module output
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41       --quiet
42           Quiet module output
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44       --ui
45           Force launching GUI dialog
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47   Parameters:
48       input=name [required]
49           Name of input raster map
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51       output=name
52           Name for output ASCII grid map (use out=- for stdout)
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54       precision=integer
55           Number of significant digits (floating point only)
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57       width=integer
58           Number of values printed before wrapping a  line  (only  SURFER  or
59           MODFLOW format)
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61       null_value=string
62           String to represent null cell (GRASS grid only)
63           Default: *
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DESCRIPTION

66       r.out.ascii  converts  a  user-specified  raster map layer (input=name)
67       into an ASCII grid in a text file (output=name) suitable for export  to
68       other computer systems.
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70       The  GRASS  program r.in.ascii can be used to perform the reverse func‐
71       tion, converting an ASCII file in suitable format to GRASS  raster  map
72       format.
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74       To  write  a  SURFER  .grd ASCII GRID file (with reverted row order and
75       different header) use the -s flag:
76       r.out.ascii -s input=inname output=outname.grd [dp=value]
77       NULL data are coded to  "1.70141e+038"  for  SURFER  ASCII  GRID  files
78       (ignoring the null= parameter).
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NOTES

81       The output from r.out.ascii may be placed into a file by using the UNIX
82       redirection mechanism; e.g.:
83       r.out.ascii input=soils output=- > out.file
84       The output file out.file can then be printed or copied onto a CDROM  or
85       floppy disk for export purposes.
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87       To  export  the  raster values as x,y,z values of cell centers (one per
88       line) use the r.out.xyz module.
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SEE ALSO

91        r.in.ascii, r.in.gdal, r.out.bin, r.out.gdal, r.out.xyz
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AUTHOR

94       Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
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96       Surfer support by Markus Neteler
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SOURCE CODE

99       Available at: r.out.ascii source code (history)
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101       Main index | Raster index | Topics index | Keywords index  |  Graphical
102       index | Full index
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104       © 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
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108GRASS 7.8.5                                                     r.out.ascii(1)
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