v.what(1grass) | GRASS GIS User's Manual | v.what(1grass) |
v.what - Queries a vector map at given locations.
vector, querying, position
v.what
v.what --help
v.what [-dagjm] map=name[,name,...]
[layer=string[,string,...]]
[type=string[,string,...]]
coordinates=east,north [distance=float]
[--help] [--verbose] [--quiet] [--ui]
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.
North Carolina sample dataset example:
Query polygon at given position:
v.what zipcodes_wake coordinates=637502.25,221744.25
Find closest hospital to given position within given distance
(search radius):
v.what hospitals coordinates=542690.4,204802.7 distance=2000000
d.what.rast, d.what.vect, v.rast.stats, v.vect.stats, v.what.rast, v.what.rast3, v.what.vect
Trevor Wiens
Edmonton, Alberta, Canada
Available at: v.what source code (history)
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© 2003-2020 GRASS Development Team, GRASS GIS 7.8.5 Reference Manual
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