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v.select
Langue: en
Version: 371260 (fedora - 01/12/10)
Section: 1 (Commandes utilisateur)
NAME
v.select - Select features from ainput by features from binputKEYWORDS
vectorSYNOPSIS
v.selectv.select help
v.select [-t] ainput=name [atype=string[,string,...]] [alayer=integer] binput=name [btype=string[,string,...]] [blayer=integer] output=name [operator=string] [--overwrite] [--verbose] [--quiet]
Flags:
- -t
Do not create attribute table- --overwrite
Allow output files to overwrite existing files- --verbose
Verbose module output- --quiet
Quiet module output
Parameters:
- ainput=name
Name of input vector map- atype=string[,string,...]
Type
Feature type(s)
Options: point,line,boundary,centroid,area
Default: point,line,boundary,centroid,area- alayer=integer
Layer number
A single vector map can be connected to multiple database tables. This number determines which table to use.
Default: 1- binput=name
Name of input vector map- btype=string[,string,...]
Type
Feature type(s)
Options: point,line,boundary,centroid,area
Default: point,line,boundary,centroid,area- blayer=integer
Layer number
A single vector map can be connected to multiple database tables. This number determines which table to use.
Default: 1- output=name
Name for output vector map- operator=string
Operator defines required relation between features. A feature is written to output if the result of operation 'ainput operator binput' is true. An input feature is considered to be true, if category of given layer is defined.
overlap: features partially or completely overlap
Options: overlap
Default: overlap
DESCRIPTION
v.select allows the user to select features from a vector by features from another one.NOTES
EXAMPLES
Extract forest fire points from larger fire map:v.select ainput=fire binput=forest output=forest_fire
Extract Italian rivers from VMAP0 watercourses map:
v.select ain=watrcrsl_eurnasia_wgs84 bin=italy_area rs
out=watrcrsl_italy op=overlap
SEE ALSO
v.overlay, GRASS SQL interfaceAUTHORS
Radim BlazekLast changed: $Date: 2007-03-22 09:00:33 +0100 (Thu, 22 Mar 2007) $
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