[GRASS5] v.out.ogr question
neteler at itc.it
Wed Mar 17 12:23:49 EST 2004
On Fri, Mar 12, 2004 at 05:58:40PM +0100, Otto Dassau wrote:
> I used the module v.out.ogr in GRASS5.7 to export polygons but missed
> the parameter 'type=area'. The result was a warning:
> > WARNING: Requested types: points and lines, but (additionally) areas found.
> > Check 'type' parameter.
> > 3426 features written
> > WARNING: 3426 features without category written
> but the map was also exported with lines instead of areas. I don't
> understand why the module explains a mistake but still exports
> the data. Wouldn't it make more sense to simply stop after warning,
> so the user has to add/modify the missing parameter?
I have made a test with a map containing a single area:
v.info ammprv | grep Number
| Number of points: 0 Number of areas: 1 |
| Number of lines: 0 Number of islands: 1 |
| Number of boundaries: 1 Number of faces: 0 |
| Number of centroids: 1 Number of kernels: 0 |
| Number of dblinks: 1 |
GRASS 5.7.-cvs:~/test > v.out.ogr ammprv dsn=ammprv layer=ammprv
WARNING: Requested types: points and lines, but (additionally) areas found.
Check 'type' parameter.
1 features written
WARNING: 1 features without category written
-> Strange: I would expect 0 features written.
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