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)
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