Re: [Qgis-user] GDAL Fill nodata Algorithm

Thu, 23 Apr 2015 07:08:34 -0700 

Not sure.  Where do you see that?  A Mask is usually a raster file 
with zeros and ones.  It will permit you to cut or modify another raster 
to a specific shape by multiplying it to the mask.  I imagine a validity 
mask is asked if you what to first validate an area you want to modify.  
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Apr 23, 2015 8:36 AM, "Larissa Junek [via OSGeo.org]" 
<[email protected]> wrote: 

        Hello Nicolas,
can you tell me what the validity mask is and what's it for? 
Am Thu, 23 Apr 2015 13:31:56 +0200
schrieb Larissa Junek < [hidden email] >:
> Hello Nicolas,
> I have further questions concerning the use of the algorithm!
> 
> Am Wed, 22 Apr 2015 12:00:03 -0700 (PDT)
> schrieb Nicolas Cadieux < [hidden email] >:
> 
> > Hi, 
> > I believe so but I usually use the  .tiff format.  
Just
> > make sure the "null data" value is specified in the raster. 
You can
> > do that under the "save as". Specifying additional null
> > value   in the layer properties does not work.
> Is it right that the no-data values must be represented by 0 so that
> the interpolation works properly then?
> 
>  Nicolas
> > Cadieux M.Sc. Les Entreprises Archéotec inc.  8548, 
rue
> > Saint-Denis Montréal H2P 2H2
> > Téléphone: 514.381.5112  Fax: 
514.381.4995
> > www.archeotec.ca On Apr 22, 2015 9:50 AM, "Larissa Junek [via
> > OSGeo.org]" < [hidden email] >
> > wrote: 
> > 
> >       Hello,
> > does someone know if you can use any GDAL-supported raster layer
> > with the Processing Fill nodata Algorithm?
> > Kinde regards,
> > Larissa
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