NAME

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

KEYWORDS

       miscellaneous, measurement, distance, area

SYNOPSIS

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

   Flags:
       -g
           Shell script style

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       coordinates=east,north[,east,north,...] [required]
           Coordinates

       units=string
           Units
           Default: location map units
           Options: miles, feet, meters, kilometers, acres, hectares

DESCRIPTION

       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.

EXAMPLES

       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

SEE ALSO

        d.geodesic

AUTHORS

       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

SOURCE CODE

       Available at: m.measure source code (history)

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual