[GRASS-user] problems exporting vector as a shapefile with polygons

[Dylan Beaudette]

On Monday 12 November 2007 03:33:05 pm andrew haywood wrote:
> Dear List,
>
> I am having problems exporting a vector out as a shapefile with
> polygons. I seem to get only lines.

how about v.out.ogr in=xxx type=area ...

Dylan

>
> If I run v.info on my vector I get the following. Which states I have
> areas and centroids.
>
> Type of Map:  Vector (level: 2)                                          |
>
>  |   Number of points:       0               Number of areas:      3588    
>  |   | Number of lines:        0               Number of islands:    1     
>  |     | Number of boundaries:   14632           Number of faces:      0   
>  |       | Number of centroids:    3588            Number of kernels:    0 
>  |         |
>  |
>  |   Map is 3D:              0                                             
>  |   | Number of dblinks:      1                                           
>  |     |
>  |
>  |   Projection: UTM (zone 0)                                              
>  |   | N: 5920000.000    S: 5828000.000                                | E:
>  | 452000.000    W: 296000.000                                  | B: 0.000 
>  |        T: 0.000                                       |
>  |
>  |   Digitize threshold: 0.00000
>
> If I run the following command
>
> v.out.ogr -p input=grid_small type=area dsn=grid_small layer=1
> format=ESRI_Shapefile
>
> and then run the following
>
> ogrinfo  grid_small.shp grid_small
>
> I get only linestring and no polygons
>
> OGRFeature(grid_small):13540
>   cat (Real) = (null)
>   row (Real) = (null)
>   col (Real) = (null)
>   LINESTRING (406000 5852000 0,406000 5854000 0)
>
> when i import it into arcvie 3.x i only get a polyline shapefile.
>
> Any help on how to construct a polygon shapefile would be greatly
> appreciated.
>
> regards
> Andrew
>
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