.TH r.info 1grass "" "GRASS 6.4.4" "Grass User's Manual"
.SH NAME
\fI\fBr.info\fR\fR  - Output basic information about a raster map layer.
.SH KEYWORDS
raster, metadata
.SH SYNOPSIS
\fBr.info\fR
.br
\fBr.info help\fR
.br
\fBr.info\fR [\-\fBrstghudmp\fR] \fBmap\fR=\fIname\fR  [\-\-\fBverbose\fR]  [\-\-\fBquiet\fR] 
.SS Flags:
.IP "\fB\-r\fR" 4m
.br
Print range only
.IP "\fB\-s\fR" 4m
.br
Print raster map resolution (NS-res, EW-res) only
.IP "\fB\-t\fR" 4m
.br
Print raster map type only
.IP "\fB\-g\fR" 4m
.br
Print map region only
.IP "\fB\-h\fR" 4m
.br
Print raster history instead of info
.IP "\fB\-u\fR" 4m
.br
Print raster map data units only
.IP "\fB\-d\fR" 4m
.br
Print raster map vertical datum only
.IP "\fB\-m\fR" 4m
.br
Print map title only
.IP "\fB\-p\fR" 4m
.br
Print raster map timestamp (day.month.year hour:minute:seconds) only
.IP "\fB\-\-verbose\fR" 4m
.br
Verbose module output
.IP "\fB\-\-quiet\fR" 4m
.br
Quiet module output
.PP
.SS Parameters:
.IP "\fBmap\fR=\fIname\fR" 4m
.br
Name of input raster map
.PP
.SH DESCRIPTION
\fIr.info\fR reports some basic information about a
user-specified raster map layer.  This map layer must exist
in the user's current mapset search path.  Information
about the map's boundaries, resolution, projection, data
type, category number, data base location and mapset, 
the timestamp and history are put into a table and written to standard
output. The types of information listed can also be found
in the \fIcats\fR, \fIcellhd\fR, and \fIhist\fR
directories under the mapset in which the named map is
stored.
.PP
The user can save the tabular output to a file 
by using the UNIX redirection mechanism (>); for example, the user 
might save a report on the \fIsoils\fR map layer in a file called 
\fIsoil.rpt\fR by typing: 
\fC
.DS
.br
r.info map=soils > soil.rpt
.br
.DE
\fR 
.SH NOTES
On large maps, the total number of cells in the map may not be displayed 
with an accurate number. This is only cosmetic.
.PP
Some standards (ISO-C90) and compilers do not support the 'long long' type 
as a 64-bit type. In the case that GRASS was built with such a compiler, 
an accuracy message may be displayed in the output of \fIr.info\fR 
after Total Cells:
.PP
.SH EXAMPLES
Below is a full report produced by \fIr.info\fR for the raster map 
\fIslope\fR in the Spearfish sample data base: 
\fC
.DS
.br
 +----------------------------------------------------------------------------+
.br
 | Layer:    slope                          Date: Mon Nov  5 10:55:57 2001    |
.br
 | Mapset:   PERMANENT                      Login of Creator: neteler         |
.br
 | Location: spearfish60                                                      |
.br
 | DataBase: /home/neteler/grassdaten                                         |
.br
 | Title:    slope in degrees ( slope )                                       |
.br
 | Timestamp: 20 Mar 1984 10:30 -0600 / 21 Mar 2020 10:30 -0600               |
.br
 |----------------------------------------------------------------------------|
.br
 |                                                                            |
.br
 |   Type of Map:  raster               Number of Categories: 255             |
.br
 |   Data Type:    FCELL                                                      |
.br
 |   Rows:         477                                                        |
.br
 |   Columns:      634                                                        |
.br
 |   Total Cells:  302418                                                     |
.br
 |        Projection: UTM (zone 13)                                           |
.br
 |            N:    4928010    S:    4913700   Res:    30                     |
.br
 |            E:     609000    W:     589980   Res:    30                     |
.br
 |   Range of data:    min =  0.000000 max = 52.520164                        |
.br
 |                                                                            |
.br
 |   Data Source:                                                             |
.br
 |    raster elevation file elevation.dem                                     |
.br
 |                                                                            |
.br
 |                                                                            |
.br
 |   Data Description:                                                        |
.br
 |    generated by r.slope.aspect                                             |
.br
 |                                                                            |
.br
 |   Comments:                                                                |
.br
 |    slope map elev = elevation.dem                                          |
.br
 |    zfactor = 1.00 format = degrees                                         |
.br
 |    min_slp_allowed = 0.000000                                              |
.br
 |                                                                            |
.br
 +----------------------------------------------------------------------------+
.br
.DE
\fR
Alternatively, the output from \fIr.info\fR may be confined to a more terse
subset of the available information by passing various flags to the module:
\fC
.DS 
.br
r.info \-rst slope
.br
min=0.000000
.br
max=52.520164
.br
nsres=30
.br
ewres=30
.br
datatype=FCELL
.br
.br
r.info \-g slope
.br
north=4928030
.br
south=4913690
.br
east=609000
.br
west=589980
.br
.DE
\fR
.SH SEE ALSO
\fIg.mapsets,\fR
\fIr.coin,\fR
\fIr.describe,\fR
\fIr.report,\fR
\fIr.stats,\fR
\fIr.support,\fR
\fIr.univar,\fR
\fIr.what\fR
.SH AUTHOR
Michael O'Shea, 
U.S. Army Construction Engineering Research Laboratory
.PP
\fILast changed: $Date: 2008-05-20 20:26:19 +0200 (Tue, 20 May 2008) $\fR
.PP
Full index
.PP
© 2003-2014 GRASS Development Team