[GRASS-user] polygon random partition

[bks at centrum.cz]

____________________________________________________________
> Od: hamish_b at yahoo.com
> Komu: bks at centrum.cz, grass-user at lists.osgeo.org
> Datum: 15.02.2008 20:18
> Předmět: Re: [GRASS-user] polygon random partition
>
>bks wrote:
>> I need to partition input polygon into more pieces (polygons).
>....
>> Spatial distribution of the pieces (i.e. output polygons) is random.
>
>v.random + v.delaunay + v.overlay?
>You might also check out v.random.cover in the wiki addons if you wish
>to constrain random points to within the polygon. (maybe v.to.points on
>the boundary + v.patch, or v.buffer before v.random.cover, before
>v.delaunay then?)
>
>
>> The areas of the pieces should correspond to the information
>> given in the attribute table of the input polygon(s). 
>
>I don't understand that, could you explain further- explaining what
>attribute data you have to work with per polygon and how that should
>correspond with sub-area? Just contain info about the parent object?

RE:
The input polygon(s) contains mixture of (e.g. landuse) types and there are
columns with their area proportions (e.g. 10% wood, 20% pasture, 70% field) 
in attribute table.  I need 3 randomly situated polygons (wood, pasture, field) 
with area proportions of  10, 20, 70% of the input polygons. 

Thanks, Stanislav 

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