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Man Pages
m.measure(1) Grass User's Manual m.measure(1)

m.measure - Measures the lengths and areas of features.

miscellaneous, measurement, distance, area

m.measure
 
m.measure --help
 
m.measure [-g] coordinates=east,north[,east,north,...] [ units=string] [--help] [--verbose] [--quiet] [-- ui]

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

coordinates=east,north[,east,north,...] [required]
 
Coordinates
units=string
 
Units
 
Default: location map units
 
Options: miles, feet, meters, kilometers, acres, hectares

m.measure provides the user with a way to measure the lengths and areas of lines and polygons. Areas can be stated in acres, hectares, square miles, square meters and square kilometers.

Distance example in a latitude-longitude location (on great circle, i.e. an orthodrome):
 
Bonn_DE="7.09549,50.73438"
Philadelphia_US="-75.16379,39.95233"
m.measure coordinates="$Bonn_DE,$Philadelphia_US" units=kilometers
Length:  6217.916452 kilometers
 
Visualization (with d.geodesic) of m.measure distance example
As an example for the North Carolina sample dataset, here four points describing a square of 1000m side length:
 
m.measure units=meters \
  coordinates=922000,2106000,923000,2106000,923000,2107000,922000,2107000
Length:  3000.000000 meters
Area:    1000000.000000 square meters
# script style output:
m.measure -g units=hectares \
  coordinates=922000,2106000,923000,2106000,923000,2107000,922000,2107000
units=meters,square meters
length=3000.000000
area=1000000.000000

d.geodesic

Glynn Clements
 
Some updates by Martin Landa, CTU in Prague, Czech Republic
 
 
Derived from d.measure by James Westervelt, Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
Last changed: $Date: 2017-11-11 19:59:24 +0100 (Sat, 11 Nov 2017) $

Available at: m.measure source code (history)
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© 2003-2018 GRASS Development Team, GRASS GIS 7.4.3 Reference Manual
GRASS 7.4.3

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