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NAME
r.in.arc - Converts an ESRI ARC/INFO ascii raster file (GRID) into a (binary) raster map layer.
KEYWORDS
raster
SYNOPSIS
r.in.arc
r.in.arc help
r.in.arc input=string output=name [type=string] [title="phrase"] [mult=float] [--overwrite] [--verbose] [--quiet]
Flags:
- --overwrite
- Allow output files to overwrite existing files
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- input=string
- ARC/INFO ASCII raster file (GRID) to be imported
- output=name
- Name for output raster map
- type=string
- Storage type for resultant raster map
- Options: CELL,FCELL,DCELL
- Default: FCELL
- title="phrase"
- Title for resultant raster map
- mult=float
- Multiplier for ASCII data
- Default: 1.0
DESCRIPTION
r.in.arc allows a user to create a (binary) GRASS raster map layer
from an ESRI ARC/INFO ascii GRID file with (optional) title.
The ARC/INFO ascii GRID file header has 6 lines (last line optional):
ncols:
nrows:
xllcorner:
yllcorner:
cellsize:
nodata_value:
or alternatively (not supported by r.in.arc, but by
r.in.gdal, last line optional):
ncols:
nrows:
xllcenter:
yllcenter:
cellsize:
nodata_value:
NOTES
r.in.arc handles floating point cell values. The mult
option allows the number of significant figures of a floating point cell
to be increased before importing. Multiples of ten are the most functional
multipliers.
EXAMPLE
To import a ARC/INFO ascii grid, applying a 10x multiplier during import, with title:
r.in.arc input=elev_meters.asc output=elev_decimeters title="Elevation data converted to decimeters" mult=10
SEE ALSO
r.in.gdal
r.out.arc
AUTHOR
Unknown German author, updated by Bill Brown to floating point support.
Last changed: $Date: 2008-06-09 21:15:30 -0700 (Mon, 09 Jun 2008) $
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