On Fri, May 7, 2010 at 1:53 PM, Hanlie Pretorius
<[email protected]> wrote:
> Hi,
>
> I tried to create contours from a  DEM with the following information:
>
>  |   Type of Map:  raster               Number of Categories: 255
>  |   Data Type:    FCELL
>  |   Rows:         9856
>  |   Columns:      4844
>  |   Total Cells:  47742464
>  |        Projection: Transverse Mercator
>  |            N: -3704977.57894189    S: -3803537.57894189   Res:    10
>  |            E: -15589.63705055    W: -64029.63705055   Res:    10

...
> However, the resulting vector file contains no lines. This is the
> output of v.info:

please check if the current region (g.region -p) matches the map
or a subset.

Markus
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