---
name: "r.in.arc"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "6.4.4-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/r.in.arc"
---

# r.in.arc(1grass)

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

## 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) $*

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