v.to.rast:error G_set_window()

[Michel Wurtz - ENGEES/CEREG]

Agustin Lobo wrote:
> When running v.to.rast using grass5.0beta, I've found
> that if the resulting raster needs more than
> one single processing pass, the result is wrong.
[...]
> I reproduce an example:
> 
[ First attempt ...]
> rows:       2040
> cols:       4616
>
[Second attempt with a smaller region ...]
> rows:       255
> cols:       577

You will notice that in the first run, you have 2040 rows, and
that the job is done with 4 passes.  The second time, once pass is
enough.

There is an undocumented parameter in v.to.rast : "rows=512"
gives the number of rows keeped in memory (512 by default). This
is the reason why your first run uses 4 passes. 4 x 512 -> 2048.

Try "v.to.rast in=vgeugoode.v out=vgeugoode rows=2040" with the
first region. It should work, without any change in the sources.

-- 
Michel Wurtz    ENGEES - CEREG
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