NAME
v.area - Display
GRASS area and perimeter information for GRASS vector map.
(GRASS Vector Program)
SYNOPSIS
v.area
v.area help
v.area
[ -f]
map=name
[color=name]
DESCRIPTION
The GRASS program v.area first displays the selected vector file.
Then user can select area on map by clicking with mouse within the desired
area. Selected area will be highlighted in selected color on graphics
display. On regular screen area information will be displayed,
in square meters, hectares, acres, and square miles, Perimeter
measurements, in meters, feet, and miles, are also displayed.
User can repeatedly select areas for analysis, one at a time.
Flag:
- -f
- Fill selected area with selected color on graphics display,
rather than simply outlining it in the highlight color.
Parameters:
- map=name
- Name of the vector map layer to be displayed.
- color=name
- Color in which perimeter will be highlighted.
Default: red
If the user simply types v.area without specifying
program arguments on the command line, the program will
prompt the user for the name of a map. Then the user is
given the option of specifying a highlight color, and then,
whether or not the display of selected area(s) is to be
filled, rather than merely outlined, with the highlight
color.
SEE ALSO
d.vect
AUTHOR
Bruce Powell,
National Park Service, Denver CO.