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

[Markus Neteler]

On Fri, Oct 26, 2001 at 08:58:39AM -0500, Helena wrote:
> Markus and others,
> 
> I found some inconsistencies in manual with the current code which
> suggest that
> some code merging might be useful (and hopefully not difficult.):
> 
> we have d.what.vect which according to the manual works only on lines,
> however it also outputs this:
> 
> 601442.22222222(E) 4924546.66666667(N)
> soils.acidic in helena  Line - Category <not tagged>
> Area - Category 54 Wb
> Size - Sq Meters: 689050.000  Hectares: 68.905
>            Acres: 170.264  Sq Miles: 0.2660
> 
> so the manual should be updated

done.
 
> 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.
 
> So for 5.0 the manual entries for d.area and d.what.area should be updated
d.what.vect...
> and for 5.1 the best thing probably would be to merge v.area with
> d.vect.area and I believe that it should be called d.vect.area. d.area
> should be probably kept separate.

Mhh, I think that the idea of [rsv].what is to provide a tool to
query maps non-interactively in contrast to d.*
This feature should be kept, but all tools synchronised.

> If I have missed something that was already discussed here, I
> appologize,
> 
> Helena

Markus