NAME¶

r.in.arc - Converts an ESRI ARC/INFO ascii raster file (GRID) into a (binary) raster map layer.

KEYWORDS¶

raster, import

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=

 

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: 2008-06-10 06:15:30 +0200 (Tue, 10 Jun 2008) $ Full index © 2003-2011 GRASS Development Team