[GRASS-user] v.out.ogr

Silvia Simoni silvia.simoni at ing.unitn.it
Thu Sep 11 06:51:12 EDT 2008


Thanks Tom and Alex!
it works mow!

silvia
On Sep 10, 2008, at 10:54 PM, Tom Russo wrote:

> On Wed, Sep 10, 2008 at 10:42:12PM +0200, we recorded a bogon- 
> computron collision of the <silvia.simoni at ing.unitn.it> flavor,  
> containing:
>> Hi grass users,
>>
>> i'm trying to export a grass vector and generate a shapefile using
>> v.out.ogr. the vector contains 4 points and 6 boundaries each has its
>> own centroids.
>> the output shapefile contains 4 objects out of 10. WHY? How can I get
>> all the objects?
>>
>> (i created the vector using v.patch from 2 separate vectors, one
>> containg 4 points and the other containing 6 boundaries + centroids).
>
> Shapefiles can only hold one type of data (point, line, polygon) per  
> shapefile.
> You can't export a grass vector with both points and areas to a single
> shapefile.  You'll have to do it in two passes to two different  
> files with
> v.out.ogr and different "type=" parameters.
>
> That is, it'll be as if you exported the data before having done the  
> v.patch.
>
> -- 
> Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
> Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
> "Argue for your limitations and sure enough, they're yours."  -- R.  
> Bach

----------------------------------------------------------------------------------------
Silvia Simoni PhD
DICA - Department of Civil and Environmental Engineering
Universita' di Trento
via Mesiano 77, 38100 Trento, ITALY
tel. +39 0461 882610
fax. +39 0461 882672
e-mail: silvia.simoni at ing.unitn.it





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