[GRASS-user] Enclose the polygons within 50 metres

Gabriele N. gis.gn at libero.it
Tue Jun 17 12:53:42 EDT 2008


Hi Christian

Indeed this was doing. I made the buffer (but on many polygons gives a bit
of problems)
 and now , as suggested by you, I can go to raster with v.to.rast. 
Or should I try to dissolve the buffer  by working again with the vector.

Thanks

Gabriele

Christian Schwartze-2 wrote:
> 
> Hi,
> 
> don't know if I unterstood you right, but what about buffering your
> polygons (v.buffer with buffer=50m), i.e. the buildings. So you get a
> map of overlapping areas where features not more far away than 50
> meters. Afterwards you can use v.to.rast for rasterizing the buffer
> zones and describing small towns for you case.
> 
> Regards,
> Christian.
> 
> 
> Am Sonntag, den 15.06.2008, 08:43 -0700 schrieb Gabriele N.:
>> Hi all
>>
>> I have 2 vector polygonal; one representing the buildings and another
>> that
>> represents the infrastructure.
>> I think to put them together with v.patch.
>>
>> I have to create another vector polygonal, which is to enclose all the
>> polygons that are close to each other within 50 metres. I need to
>> identify
>> small towns.
>>
>> How can I do?
>> 1) v.patch
>> 2) v.distance?
>> 3)?
>>
>> Thank you very much
>>
>> Gabriele
> 
> 
> 
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