Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
v.info(1)		    GRASS GIS User's Manual		     v.info(1)

NAME
       v.info  - Outputs basic information about a vector map.

KEYWORDS
       vector, metadata, topology, extent, history, attribute columns, level1

SYNOPSIS
       v.info
       v.info --help
       v.info	[-hcget]   map=name   [layer=string]	[--help]   [--verbose]
       [--quiet]  [--ui]

   Flags:
       -h
	   Print history instead of info and exit

       -c
	   Print types/names of	table columns for specified layer  instead  of
	   info	and exit

       -g
	   Print region	info in	shell script style

       -e
	   Print extended metadata info	in shell script	style

       -t
	   Print topology info in shell	script style

       --help
	   Print usage summary

       --verbose
	   Verbose module output

       --quiet
	   Quiet module	output

       --ui
	   Force launching GUI dialog

   Parameters:
       map=nameA [required]
	   Name	of vector map
	   Or data source for direct OGR access

       layer=string
	   Layer number	or name
	   Vector  features can	have category values in	different layers. This
	   number determines which layer to use. When used with	direct OGR ac-
	   cess	this is	the layer name.
	   Default: 1

DESCRIPTION
       v.info reports some basic information (metadata)	about a	user-specified
       vector map and its topology status.

       If topology info	is not available (i.e.,	vector map cannot be opened on
       level  2), vector map extends and number	of features need to be counted
       on the fly which	may take some time.

       Note that the flag -c only works	when the vector	map  is	 connected  to
       one  or several attribute table(s). This	connection can be shown	or set
       with v.db.connect.

EXAMPLE
   Basic metadata information
       v.info map=geology
	+----------------------------------------------------------------------------+
	| Name:		   geology						     |
	| Mapset:	   PERMANENT						     |
	| Location:	   nc_spm_08						     |
	| Database:	   /home/martin/grassdata				     |
	| Title:	   North Carolina geology map (polygon map)		     |
	| Map scale:	   1:1							     |
	| Map format:	   native						     |
	| Name of creator: helena						     |
	| Organization:	   NC OneMap						     |
	| Source date:	   Mon Nov  6 15:48:53 2006				     |
	|----------------------------------------------------------------------------|
	|   Type of map: vector	(level:	2)					     |
	|									     |
	|   Number of points:	    0		    Number of centroids:  1832	     |
	|   Number of lines:	    0		    Number of boundaries: 3649	     |
	|   Number of areas:	    1832	    Number of islands:	  907	     |
	|									     |
	|   Map	is 3D:		    No						     |
	|   Number of dblinks:	    1						     |
	|									     |
	|   Projection:	Lambert	Conformal Conic					     |
	|									     |
	|		N:   318117.43741634	S:    10875.82723209		     |
	|		E:   930172.31282271	W:   123971.19498978		     |
	|									     |
	|   Digitization threshold: 0						     |
	|   Comment:								     |
	|									     |
	+----------------------------------------------------------------------------+

   Map history
       v.info -h map=geology
       COMMAND:	v.in.ogr input="geol.shp" output="geology" min_area=0.0001 snap=-1
       GISDBASE: /bigdata/grassdata05
       LOCATION: ncfromfile MAPSET: PERMANENT USER: helena DATE: Mon Nov  6 15:48:53 2006
       ---------------------------------------------------------------------------------
       1832 input polygons
       total area: 1.276093e+11	(1832 areas)
       overlapping area: 0.000000e+00 (0 areas)
       area without category: 0.000000e+00 (0 areas)
       ---------------------------------------------------------------------------------

   Attribute columns for given layer
       v.info -c map=geology
       Displaying column types/names for database connection of	layer <1>:
       INTEGER|cat
       DOUBLE PRECISION|onemap_pro
       DOUBLE PRECISION|PERIMETER
       INTEGER|GEOL250_
       INTEGER|GEOL250_ID
       CHARACTER|GEO_NAME
       DOUBLE PRECISION|SHAPE_area
       DOUBLE PRECISION|SHAPE_len

   Basic metadata information in shell script style
       v.info -get map=geology
       name=geology
       mapset=PERMANENT
       location=nc_spm_08
       database=/home/martin/grassdata
       title=North Carolina geology map	(polygon map)
       scale=1:1
       format=native
       creator=helena
       organization=NC OneMap
       source_date=Mon Nov  6 15:48:53 2006
       level=2
       map3d=0
       num_dblinks=1
       projection=Lambert Conformal Conic
       digitization_threshold=0.000000
       comment=
       north=318117.43741634
       south=10875.82723209
       east=930172.31282271
       west=123971.19498978
       top=0.000000
       bottom=0.000000
       nodes=4556
       points=0
       lines=0
       boundaries=3649
       centroids=1832
       areas=1832
       islands=907
       primitives=5481
       v.info -g map=geology
       north=318117.43741634
       south=10875.82723209
       east=930172.31282271
       west=123971.19498978
       top=0.000000
       bottom=0.000000

PYTHON
       See Python Scripting Library for	more info.

       Note: The Python	tab in the wxGUI can be	used for entering the  follow-
       ing code:

       import grass.script as gcore
       gcore.vector_columns('geology')	 # for `v.info -c`
       gcore.vector_info_topo('geology') # for `v.info shell=topo`

SEE ALSO
	r.info,	r3.info, t.info, v.db.connect

AUTHORS
       Original	author CERL
       Updated to GRASS	6 by Radim Blazek, ITC-Irst, Trento, Italy
       Level 1 support by Markus Metz
       Updated to GRASS	7 by Martin Landa, CTU in Prague, Czech	Republic

SOURCE CODE
       Available at: v.info source code	(history)

       Main  index  | Vector index | Topics index | Keywords index | Graphical
       index | Full index

       A(C) 2003-2020 GRASS Development	Team, GRASS GIS	7.8.3 Reference	Manual

GRASS 7.8.3							     v.info(1)

NAME | KEYWORDS | SYNOPSIS | DESCRIPTION | EXAMPLE | PYTHON | SEE ALSO | AUTHORS | SOURCE CODE

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=v.info&sektion=1&manpath=FreeBSD+12.1-RELEASE+and+Ports>

home | help