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Man Pages
v.report(1) Grass User's Manual v.report(1)

v.report - Reports geometry statistics for vector maps.

vector, geometry, statistics

v.report
 
v.report --help
 
v.report map=name [layer=string] option= string [units=string] [sort=string] [-- help] [--verbose] [--quiet] [-- ui]

--help
 
Print usage summary
--verbose
 
Verbose module output
--quiet
 
Quiet module output
--ui
 
Force launching GUI dialog

map=name [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 access this is the layer name.
 
Default: 1
option=string [required]
 
Value to calculate
 
Options: area, length, coor
units=string
 
Units
 
Options: miles, feet, meters, kilometers, acres, hectares, percent
sort=string
 
Sort the result
 
Options: asc, desc
 
asc: Sort in ascending order
 
desc: Sort in descending order

v.report generates a table showing the area present in each of the categories of a user-selected data layer.
Area is given in hectares, square meters, and square kilometers. If the units option is used, area is given in acres, square feet, and square miles.
Feet and acre units are always reported in their common versions (i.e. the International Foot, exactly 5280 feet in a mile), even when the location’s standard map unit is the US Survey foot.
v.report works on the full map data; therefore, the current region is ignored. If you wish to spatially limit the statistics, a map subset must be created with v.in.region and v.overlay, and then run v.report on the new map.

North Carolina sample dataset:
 
v.report zipcodes_wake option=area units=hectares
In the output, there is an extra column added containing the results.

v.in.region, v.to.db, v.overlay

Markus Neteler, GDF Hannover
Last changed: $Date: 2011-11-08 22:24:20 +0100 (Tue, 08 Nov 2011) $

Available at: v.report source code (history)
Main index | Vector index | Topics index | Keywords index | Graphical index | Full index
© 2003-2018 GRASS Development Team, GRASS GIS 7.4.3 Reference Manual
GRASS 7.4.3

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