[GRASS-user] v.to.rast with empty vector-file
Achim Kisseler
ak7 at jupiter.uni-freiburg.de
Sat Oct 17 10:55:22 EDT 2009
Thanks for response, Markus!
I just did that a minute ago.
But I found out that I don't have to handle that exception in my case: I
do a r.patch further on, which works even if one raster-file is missing.
So there is no need of an null-map anymore.
Thanks again,
Achim
Markus Metz schrieb:
>
> Achim Kisseler wrote:
>> Dear grass users,
>>
>> has anyone an idea how to handle v.to.rast, if vector-file is empty? ->
>> it produces an error and no map is created:
>>
>> Loading data...
>> ERROR: Database connection not defined for layer 2
>>
>> I want an null-raster-map instead.
>>
> r.mapcalc "nullmap = null()"
>
> ???
>
> Markus M
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