r.in.arc

NAME

r.in.arc - Convert an ESRI ARC/INFO ascii raster file (GRID) into a (binary) raster map layer.
(GRASS Raster Data Import Program)

SYNOPSIS

r.in.arc
r.in.arc help
r.in.arc input=name output=name [title="phrase"] [mult=multiplier]

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.

OPTIONS

Parameters:

input=name: Name of an existing ASCII raster file to be imported.
output=name: Name to be assigned to resultant binary raster map layer.
title="phrase": Title to be assigned to resultant raster map layer.
mult=multiplier: Multiply all raster cell values by multiplier. multiplier is a floating point value, and has a default value of 1.0.

The input file has a header section which describes the location and size of the data, followed by the data itself.

The header has 6 lines:

     ncols:
     nrows:
     xllcorner:
     yllcorner:
     cellsize:

or alternatively (not supported in r.in.arc, but in r.in.gdal):

     ncols:
     nrows:
     xllcenter:
     yllcenter:
     cellsize:

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.

AUTHOR

Unknown German author, updated by Bill Brown to floating point support.

Last changed: $Date$