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

6       r.out.arc  - Converts a raster map layer into an ESRI ARCGRID file.
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KEYWORDS

9       raster
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SYNOPSIS

12       r.out.arc
13       r.out.arc help
14       r.out.arc [-h1] input=string output=string  [dp=integer]
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16   Flags:
17       -h  Suppress printing of header information
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19       -1  List one entry per line instead of full row
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21   Parameters:
22       input=string
23           Name of an existing raster map layer
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25       output=string
26           Name of an output ARC-GID map (use out=- for stdout)
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28       dp=integer
29           Number of decimal places Default: 8
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DESCRIPTION

32       r.out.arc  converts a user-specified raster map layer (input=name) into
33       an ESRI ARC-GRID ascii file (output=name) suitable for export to  other
34       computer  systems.  The dp=value option (where value is a number of the
35       user's choice) can be used to request that numbers after decimal points
36       are  limited.   However,  to use this, the user should know the maximum
37       number of digits that will occur in the output file.  The user can find
38       the  maximum  number  of digits occurring in the output file by running
39       r.out.arc without the dp=value option.
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41       The GRASS program r.in.arc can be used to perform the reverse function,
42       converting  an  ESRI  ARC-GRID  ascii  file in suitable format to GRASS
43       raster file format. The order of cell values in file is from lower left
44       to upper right (reverse to GRASS).
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NOTES

47       The  output  from r.out.arc may also be placed into a file by using the
48       UNIX redirection mechanism;  e.g.:
49       r.out.arc input=soils output=- > out.grd
50        The output file out.grd can then be copied onto a CDROM or floppy disk
51       for export purposes.
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53       An Arc ASCII grid can be loaded into ArcGIS 8.3 though ArcToolbox.
54       Use  the  "Import to Raster" -> "ASCII to Grid" tool to create a binary
55       grid which can be selected using ArcCatalog. The spatial analyst exten‐
56       sion may need to be installed and activated within Arc.
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58       In ArcGIS 9.0 the import tool can be found at:
59       ArcMap -> Toolbox -> Conversion Tools -> To Raster -> ASCII to Raster
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61       A  GeoTIFF  created  with r.out.gdal is sometimes a better solution for
62       transferring raster maps to other GIS software.
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SEE ALSO

65       r.in.arc
66       r.out.gdal
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AUTHOR

69       Markus Neteler, University of Hannover, Germany,
70       based on r.out.ascii written by
71       Michael Shapiro, U.S.Army Construction Engineering Research Laboratory
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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.arc(1)