[GRASS-user] Re: Exporting Vector data to SHP (v.out.ogr)- takes a lot of time

[Achim Kisseler]

Am 12.11.2010 09:40, schrieb Luis Lisboa:
> The problem is that, I left it this night processing and, when I returned it has freezed. So, v.out.ogr is not being able to export vector files produced by r.to.vect... As I said, maybe it's related with some option in r.to.vect that is messing this up. Or something related with tables.
>
> Can anyone give me some tips on this?

I guess it freezes because it uses so much memory.

Please check if v.out.ogr works with a small vector map. E.g. shrink 
region before r.to.vect or choose only some features from the vector map 
to export.

?

Achim
>
> Thanks
>
> Luis
>
>
>>...that´ll be a HUGE vector file!
>>So it´s normal, that it takes some minutes.
>
>
> On Thu, Nov 11, 2010 at 3:08 PM, Luis Lisboa <luislisboa1975 at gmail.com
> <mailto:luislisboa1975 at gmail.com>> wrote:
>
>     Greetings
>
>     I have produced a vector map (with r.to.vector) with the following
>     metadata:
>     v.info <http://v.info> test01
>       +----------------------------------------------------------------------------+
>       | Layer:           teste01
>           |
>       | Mapset:          Regional
>                 |
>       | Location:        Country
>             |
>       | Database:        E:\v3
>                |
>       | Title:
>                |
>       | Map scale:       1:1
>                |
>       | Map format:      native
>                 |
>       | Name of creator: orbit
>         |
>       | Organization:
>                 |
>       | Source date:     Tue Nov 09 11:11:40 2010
>                 |
>       |----------------------------------------------------------------------------|
>       |   Type of Map:  vector (level: 2)
>                 |
>       |
>                 |
>       |   Number of points:       0               Number of areas:
>       213680     |
>       |   Number of lines:        0               Number of islands:
>       73649      |
>       |   Number of boundaries:   348770          Number of faces:
>       0          |
>       |   Number of centroids:    213666          Number of kernels:
>       0          |
>       |
>                 |
>       |   Map is 3D:              No
>                |
>       |   Number of dblinks:      1
>                 |
>       |
>                 |
>       |         Projection: Universal Transverse Mercator (zone 0)
>                |
>       |               N:  8832707.83027649    S:  7028073.62772369
>                |
>       |               E:  1347458.42001915    W:    200792.5777576
>                |
>       |
>                 |
>       |   Digitization threshold: 0
>                 |
>       |   Comments:
>                 |
>       |
>                 |
>       +----------------------------------------------------------------------------+
>
>
>     Now I'm trying to export it to SHAPEFILE but, after 10 minutes the
>     processing bar is not even in 40%. What might be happening? I mean,
>     is it some error with the vector or when I convert to vector (from
>     raster)? Because, taking more than 10 minutes to export to vector
>     it's not normal (I guess) and taking nearly 7 min to convert to
>     vector also...
>
>     Thanks for the reply
>     Luis L
>
>
>
>
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