v.report(1grass)

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
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.

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

AUTHOR
Markus Neteler, GDF Hannover

SOURCE CODE

Available at: v.report source code (history)

Accessed: Monday Apr 01 03:09:31 2024

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