[GRASS5] d.what.vect, v.area, d.area needs update manual

[Eric G. Miller]

On Wed, 31 Oct 2001 18:50:46 +0100, Markus Neteler <neteler at itc.it> wrote:

[snip]
> > We also have v.area which outputs everything that d.what.vect does plus
> > perimeter, area centroid and island info (and the "mouse clicking" is
> > different - that is one standard that needs to be set for 5.1)
> > 
> > Point at cross hairs:     4918382.22 (N)     602540.00 (E)
> > Getting value 0 with opflag 0
> > Islands flag is 0
> > Area index number: 79
> > Perimeter:  8613.35 meters   28258.68 feet   5.352 miles
> > Area:   2557050.00 sq meters    255.71 hectares
> >         631.845 acres    0.9873 sq miles
> > Area centroid: 4918410.00 (N) 602490.00 (E)
> > cat#= 9, label= <CBE>
> > 
> > and then we also have d.area for which the manual says: Obtains
> > area/perimeter information on vector polygons, which it is not doing? but
> > it has the capability to display areas as filled areas that the previous
> > two do not have.
> 
> I agree, that's a sort of confusing.

The man page and description for d.area have been fixed.  Note, v.area does
filled polygons using the '-f' flag upon selection -- but it doesn't handle
islands or clipping correctly (similar polygon clipping problem that d.area
has).

-- 
Eric G. Miller <egm2 at jps.net>