[Qgis-user] GDAL Fill nodata Algorithm

[Larissa Junek]

When i use QGIS 2.8 and open the Fill nodata Algorithm from Processing
there are the following menus:
Input layer, Search distance, Smooth iterations, Band to operate on,
Validity mask, DO not use default validity mask, Filled.

Are we talking about the same application?

Kind regards,
Larissa


Am Thu, 23 Apr 2015 07:05:28 -0700 (PDT)
schrieb Nicolas Cadieux <nicolas.cadieux at archeotec.ca>:

> 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]"
> <ml-node+s1560n5202645h56 at n6.nabble.com> 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&nbsp; .tiff
> format.&nbsp; Just > > make sure the "null data"
> value is specified in the raster. You can > > do that under the
> "save as". Specifying additional null > >
> value&nbsp;&nbsp; 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 Arch&#233;otec
> inc.&#160; 8548, rue > > Saint-Denis Montr&#233;al H2P
> 2H2 > > T&#233;l&#233;phone:&#160;514.381.5112
> &#160;Fax: 514.381.4995 > > www.archeotec.ca On Apr 22,
> 2015 9:50 AM, &quot;Larissa Junek [via > >
> OSGeo.org]&quot; &lt; [hidden email] &gt; > >
> 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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