1v.info(1) Grass User's Manual v.info(1)
2
6 v.info - Outputs basic information about a vector map.
7
9 vector, metadata, topology, extent, history, attribute columns, level1
10
12 v.info
13 v.info --help
14 v.info [-hcget] map=name [layer=string] [--help] [--verbose]
15 [--quiet] [--ui]
16 Flags:
18 -h
19 Print history instead of info and exit
20 -c
22 Print types/names of table columns for specified layer instead of
23 info and exit
24 -g
26 Print region info in shell script style
27 -e
29 Print extended metadata info in shell script style
30 -t
32 Print topology info in shell script style
33 --help
35 Print usage summary
36 --verbose
38 Verbose module output
39 --quiet
41 Quiet module output
42 --ui
44 Force launching GUI dialog
45 Parameters:
47 map=name [required]
48 Name of vector map
49 Or data source for direct OGR access
50 layer=string
52 Layer number or name
53 Vector features can have category values in different layers. This
54 number determines which layer to use. When used with direct OGR
55 access this is the layer name.
56 Default: 1
57
59 v.info reports some basic information (metadata) about a user-specified
60 vector map and its topology status.
61 If topology info is not available (i.e., vector map cannot be open on
63 level 2), vector map extends and number of features need to be counted
64 on the fly which may take some time.
65
67 Basic metadata information
68 v.info map=geology
69 +----------------------------------------------------------------------------+
70 | Name: geology |
71 | Mapset: PERMANENT |
72 | Location: nc_spm_08 |
73 | Database: /home/martin/grassdata |
74 | Title: North Carolina geology map (polygon map) |
75 | Map scale: 1:1 |
76 | Map format: native |
77 | Name of creator: helena |
78 | Organization: NC OneMap |
79 | Source date: Mon Nov 6 15:48:53 2006 |
80 |----------------------------------------------------------------------------|
81 | Type of map: vector (level: 2) |
82 | |
83 | Number of points: 0 Number of centroids: 1832 |
84 | Number of lines: 0 Number of boundaries: 3649 |
85 | Number of areas: 1832 Number of islands: 907 |
86 | |
87 | Map is 3D: No |
88 | Number of dblinks: 1 |
89 | |
90 | Projection: Lambert Conformal Conic |
91 | |
92 | N: 318117.43741634 S: 10875.82723209 |
93 | E: 930172.31282271 W: 123971.19498978 |
94 | |
95 | Digitization threshold: 0 |
96 | Comment: |
97 | |
98 +----------------------------------------------------------------------------+
99 Map history
101 v.info -h map=geology
102 COMMAND: v.in.ogr input="geol.shp" output="geology" min_area=0.0001 snap=-1
103 GISDBASE: /bigdata/grassdata05
104 LOCATION: ncfromfile MAPSET: PERMANENT USER: helena DATE: Mon Nov 6 15:48:53 2006
105 ---------------------------------------------------------------------------------
106 1832 input polygons
107 total area: 1.276093e+11 (1832 areas)
108 overlapping area: 0.000000e+00 (0 areas)
109 area without category: 0.000000e+00 (0 areas)
110 ---------------------------------------------------------------------------------
111 Attribute columns for given layer
113 v.info -c map=geology
114 Displaying column types/names for database connection of layer <1>:
115 INTEGER|cat
116 DOUBLE PRECISION|onemap_pro
117 DOUBLE PRECISION|PERIMETER
118 INTEGER|GEOL250_
119 INTEGER|GEOL250_ID
120 CHARACTER|GEO_NAME
121 DOUBLE PRECISION|SHAPE_area
122 DOUBLE PRECISION|SHAPE_len
123 Basic metadata information in shell script style
125 v.info -get map=geology
126 name=geology
127 mapset=PERMANENT
128 location=nc_spm_08
129 database=/home/martin/grassdata
130 title=North Carolina geology map (polygon map)
131 scale=1:1
132 format=native
133 creator=helena
134 organization=NC OneMap
135 source_date=Mon Nov 6 15:48:53 2006
136 level=2
137 map3d=0
138 num_dblinks=1
139 projection=Lambert Conformal Conic
140 digitization_threshold=0.000000
141 comment=
142 north=318117.43741634
143 south=10875.82723209
144 east=930172.31282271
145 west=123971.19498978
146 top=0.000000
147 bottom=0.000000
148 nodes=4556
149 points=0
150 lines=0
151 boundaries=3649
152 centroids=1832
153 areas=1832
154 islands=907
155 primitives=5481
156 v.info -g map=geology
157 north=318117.43741634
158 south=10875.82723209
159 east=930172.31282271
160 west=123971.19498978
161 top=0.000000
162 bottom=0.000000
163
165 See Python Scripting Library for more info.
166 Note: The Python tab in the wxGUI can be used for entering the follow‐
168 ing code:
169 import grass.script as gcore
171 gcore.vector_columns(’geology’) # for `v.info -c`
172 gcore.vector_info_topo(’geology’) # for `v.info shell=topo`
173
175 r.info, r3.info, t.info
176
178 Original author CERL
179 Updated to GRASS 6 by Radim Blazek, ITC-Irst, Trento, Italy
180 Level 1 support by Markus Metz
181 Updated to GRASS 7 by Martin Landa, CTU in Prague, Czech Republic
182 Last changed: $Date: 2018-08-31 17:01:15 +0200 (Fri, 31 Aug 2018) $
184
186 Available at: v.info source code (history)
187 Main index | Vector index | Topics index | Keywords index | Graphical
189 index | Full index
190 © 2003-2019 GRASS Development Team, GRASS GIS 7.6.0 Reference Manual
192GRASS 7.6.0 v.info(1)