1r.info(1) GRASS GIS User's Manual r.info(1)
2
6 r.info - Outputs basic information about a raster map.
7
9 raster, metadata, extent, history
10
12 r.info
13 r.info --help
14 r.info [-grseh] map=name [--help] [--verbose] [--quiet] [--ui]
15 Flags:
17 -g
18 Print raster array information in shell script style
19 -r
21 Print range in shell script style
22 -s
24 Print stats in shell script style
25 -e
27 Print extended metadata information in shell script style
28 -h
30 Print raster history instead of info
31 --help
33 Print usage summary
34 --verbose
36 Verbose module output
37 --quiet
39 Quiet module output
40 --ui
42 Force launching GUI dialog
43 Parameters:
45 map=name [required]
46 Name of raster map
47
49 r.info reports some basic information about a user-specified raster map
50 layer. This map layer must exist in the user’s current mapset search
51 path. Information about the map’s boundaries, resolution, projection,
52 data type, category number, data base location and mapset, the time‐
53 stamp and history are put into a table and written to standard output.
54 The types of information listed can also be found in the cats, cellhd,
55 and hist directories under the mapset in which the named map is stored.
56 The user can save the tabular output to a file by using the UNIX redi‐
58 rection mechanism (>); for example, the user might save a report on the
59 soils map layer in a file called soil.txt by typing:
60 r.info map=soils > soil.txt
61
63 On large maps, the total number of cells in the map may not be dis‐
64 played with an accurate number. This is only cosmetic.
65 Some standards (ISO-C90) and compilers do not support the ’long long’
67 type as a 64-bit type. In the case that GRASS GIS was built with such a
68 compiler, an accuracy message may be displayed in the output of r.info
69 after Total Cells.
70
72 Below is a full report produced by r.info for the raster map slope in
73 the North Carolina sample data base:
74 r.info slope
75 +----------------------------------------------------------------------------+
76 | Map: slope Date: Tue Nov 7 01:11:23 2006 |
77 | Mapset: PERMANENT Login of Creator: helena |
78 | Location: nc_spm_08_grass7 |
79 | DataBase: /grassdata |
80 | Title: South-West Wake county: slope in degrees ( slope_ned10m ) |
81 | Timestamp: none |
82 |----------------------------------------------------------------------------|
83 | |
84 | Type of Map: raster Number of Categories: 255 |
85 | Data Type: FCELL |
86 | Rows: 1350 |
87 | Columns: 1500 |
88 | Total Cells: 2025000 |
89 | Projection: Lambert Conformal Conic |
90 | N: 228500 S: 215000 Res: 10 |
91 | E: 645000 W: 630000 Res: 10 |
92 | Range of data: min = 0 max = 38.68939 |
93 | |
94 | Data Source: |
95 | raster elevation file elev_ned10m |
96 | |
97 | |
98 | Data Description: |
99 | generated by r.slope.aspect |
100 | |
101 | Comments: |
102 | slope map elev = elev_ned10m |
103 | zfactor = 1.00 format = degrees |
104 | min_slope = 0.000000 |
105 | |
106 +----------------------------------------------------------------------------+
107 Alternatively, the output from r.info may be confined to a more terse
108 subset of the available information by passing various flags to the
109 module:
110 Output in shell script style, useful for eval (eval `r.info -g slope`):
112 r.info -g slope
113 north=228500
114 south=215000
115 east=645000
116 west=630000
117 nsres=10
118 ewres=10
119 rows=1350
120 cols=1500
121 cells=2025000
122 datatype=FCELL
123 ncats=255
124 Output the map data range:
126 r.info -r slope
127 min=0
128 max=38.68939
129 Output the extended map data metadata in shell style:
131 r.info -e slope
132 map=slope
133 mapset=PERMANENT
134 location=nc_spm_08_grass7
135 database=/grassdata
136 date="Tue Nov 7 01:11:23 2006"
137 creator="helena"
138 title="South-West Wake county: slope in degrees (slope_ned10m)"
139 timestamp="none"
140 units="none"
141 vdatum="none"
142 source1="raster elevation file elev_ned10m"
143 source2=""
144 description="generated by r.slope.aspect"
145 comments="slope map elev = elev_ned10mzfactor = 1.00 format = degreesmin_slp_allowed = 0.000000"
146
148 g.mapsets, r.coin, r.describe, r.report, r.stats, r.support, r.univar,
149 r.what
150
152 Michael O’Shea, U.S. Army Construction Engineering Research Laboratory
153
155 Available at: r.info source code (history)
156 Main index | Raster index | Topics index | Keywords index | Graphical
158 index | Full index
159 © 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
161GRASS 7.8.5 r.info(1)