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NAME
v.what - Queries a vector map layer at given locations.
KEYWORDS
vector, querying
SYNOPSIS
v.what
v.what help
v.what [-dag] map=name[,name,...] [east_north=east,north[,east,north,...]] [distance=float] [--verbose] [--quiet]
Flags:
- -d
- Print topological information (debugging)
- -a
- Print attribute information
- -g
- Print the stats in shell script style
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- map=name[,name,...]
- Name of input vector map
- east_north=east,north[,east,north,...]
- Coordinates for query
- If not given reads from standard input
- distance=float
- Query threshold distance
- Default: 0
DESCRIPTION
v.what outputs the category number value(s) associated with
user-specified location(s) in user-specified vector map layer(s).
This module was derived from the d.what.vect module by
removing all interactive code and modification of the output for
easy parsing. Using the -g flag generates script-style
output which is easily parsable.
EXAMPLE
North Carolina sample dataset example:
Query polygon at given position:
v.what zipcodes_wake east_north=637502.25,221744.25
Find closest hospital to given position within given distance (search radius):
v.what hospitals east_north=542690.4,204802.7 distance=2000000
SEE ALSO
d.what.vect
AUTHOR
Trevor Wiens
Edmonton, Alberta, Canada
Last changed: $Date: 2014-02-10 14:43:18 -0800 (Mon, 10 Feb 2014) $
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