1v.info(1) GRASS GIS 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 opened 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 Note that the flag -c only works when the vector map is connected to
67 one or several attribute table(s). This connection can be shown or set
68 with v.db.connect.
69
71 Basic metadata information
72 v.info map=geology
73 +----------------------------------------------------------------------------+
74 | Name: geology |
75 | Mapset: PERMANENT |
76 | Location: nc_spm_08 |
77 | Database: /home/martin/grassdata |
78 | Title: North Carolina geology map (polygon map) |
79 | Map scale: 1:1 |
80 | Map format: native |
81 | Name of creator: helena |
82 | Organization: NC OneMap |
83 | Source date: Mon Nov 6 15:48:53 2006 |
84 |----------------------------------------------------------------------------|
85 | Type of map: vector (level: 2) |
86 | |
87 | Number of points: 0 Number of centroids: 1832 |
88 | Number of lines: 0 Number of boundaries: 3649 |
89 | Number of areas: 1832 Number of islands: 907 |
90 | |
91 | Map is 3D: No |
92 | Number of dblinks: 1 |
93 | |
94 | Projection: Lambert Conformal Conic |
95 | |
96 | N: 318117.43741634 S: 10875.82723209 |
97 | E: 930172.31282271 W: 123971.19498978 |
98 | |
99 | Digitization threshold: 0 |
100 | Comment: |
101 | |
102 +----------------------------------------------------------------------------+
103 Map history
105 v.info -h map=geology
106 COMMAND: v.in.ogr input="geol.shp" output="geology" min_area=0.0001 snap=-1
107 GISDBASE: /bigdata/grassdata05
108 LOCATION: ncfromfile MAPSET: PERMANENT USER: helena DATE: Mon Nov 6 15:48:53 2006
109 ---------------------------------------------------------------------------------
110 1832 input polygons
111 total area: 1.276093e+11 (1832 areas)
112 overlapping area: 0.000000e+00 (0 areas)
113 area without category: 0.000000e+00 (0 areas)
114 ---------------------------------------------------------------------------------
115 Attribute columns for given layer
117 v.info -c map=geology
118 Displaying column types/names for database connection of layer <1>:
119 INTEGER|cat
120 DOUBLE PRECISION|onemap_pro
121 DOUBLE PRECISION|PERIMETER
122 INTEGER|GEOL250_
123 INTEGER|GEOL250_ID
124 CHARACTER|GEO_NAME
125 DOUBLE PRECISION|SHAPE_area
126 DOUBLE PRECISION|SHAPE_len
127 Basic metadata information in shell script style
129 v.info -get map=geology
130 name=geology
131 mapset=PERMANENT
132 location=nc_spm_08
133 database=/home/martin/grassdata
134 title=North Carolina geology map (polygon map)
135 scale=1:1
136 format=native
137 creator=helena
138 organization=NC OneMap
139 source_date=Mon Nov 6 15:48:53 2006
140 level=2
141 map3d=0
142 num_dblinks=1
143 projection=Lambert Conformal Conic
144 digitization_threshold=0.000000
145 comment=
146 north=318117.43741634
147 south=10875.82723209
148 east=930172.31282271
149 west=123971.19498978
150 top=0.000000
151 bottom=0.000000
152 nodes=4556
153 points=0
154 lines=0
155 boundaries=3649
156 centroids=1832
157 areas=1832
158 islands=907
159 primitives=5481
160 v.info -g map=geology
161 north=318117.43741634
162 south=10875.82723209
163 east=930172.31282271
164 west=123971.19498978
165 top=0.000000
166 bottom=0.000000
167
169 See Python Scripting Library for more info.
170 Note: The Python tab in the wxGUI can be used for entering the follow‐
172 ing code:
173 import grass.script as gcore
175 gcore.vector_columns(’geology’) # for `v.info -c`
176 gcore.vector_info_topo(’geology’) # for `v.info shell=topo`
177
179 r.info, r3.info, t.info, v.db.connect
180
182 Original author CERL
183 Updated to GRASS 6 by Radim Blazek, ITC-Irst, Trento, Italy
184 Level 1 support by Markus Metz
185 Updated to GRASS 7 by Martin Landa, CTU in Prague, Czech Republic
186
188 Available at: v.info source code (history)
189 Main index | Vector index | Topics index | Keywords index | Graphical
191 index | Full index
192 © 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
194GRASS 7.8.5 v.info(1)