v.report - GRASS GIS manual

Note: This document is for an older version of GRASS GIS that has been discontinued. You should upgrade, and read the current manual page.

NAME

v.report - Reports geometry statistics for vector maps.

KEYWORDS

vector, geometry, statistics

SYNOPSIS

v.report

v.report --help

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

Flags:

-c: Do not include column names in output
-d: Report for geometries with no database records
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

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
separator=character: Field separator; Special characters: pipe, comma, space, tab, newline; Default: pipe

DESCRIPTION
EXAMPLE
SEE ALSO
AUTHOR

DESCRIPTION

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.

EXAMPLE

North Carolina sample dataset:

v.report zipcodes_wake option=area units=hectares

In the output, there is an extra column added containing the results.

AUTHOR

Markus Neteler, GDF Hannover

SOURCE CODE

Available at: v.report source code (history)

Latest change: Thursday Jan 26 14:10:26 2023 in commit: cdd84c130cea04b204479e2efdc75c742efc4843