NAME
v.what - Queries a vector map at given locations.
KEYWORDS
vector, position, querying
SYNOPSIS
v.what
v.what help
v.what [-dag] map=name[,name,...] layer=string[,string,...] 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,...] [required]
- Name of vector map(s)
- layer=string[,string,...] [required]
- Layer number or name ('-1' for all layers)
- A single vector map can be connected to multiple database tables. This number determines which table to use. When used with direct OGR access this is the layer name.
- Default: -1
- east_north=east,north[,east,north,...] [required]
- Coordinates for query
- "-" to read 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 permits to
generate script style output which is easily parsable.
This module always reports standard acres, even when the location uses
US Survey feet as the map unit.
EXAMPLE
Spearfish example:
v.what fields east_north=599121.75,4922981.125
SEE ALSO
d.what.vect
AUTHOR
Trevor Wiens
Edmonton, Alberta, Canada
Last changed: $Date: 2011-11-08 13:24:20 -0800 (Tue, 08 Nov 2011) $
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