Thanks Ben !  We prefer Sextante over all.  But we try to use Grass, which
yields horrible low-resolution results which can't be used.  We also want to
further process the results of the "density.kernel" and the "rasterize
vector layer" with the raster calculator.  So, I guess it is preferable that
we use Sextante tools only for each step.  Isn't there an internal work
around for the no data value issue ?
j






2011/7/11 Benjamin Ducke <benjamin.du...@oxfordarch.co.uk>

> Yes indeed, this algorithm uses a fixed "no data" value
> of "-99999", instead of honoring the SEXTANTE setting.
> I will file a bug ticket. Should be a quick fix.
>
> Maybe use GRASS' v.to.rast until the problem is fixed?
>
> Ben
>
> ----- Original Message -----
> > This seems to be a bug for which we need a workaround.
> >
> > We create a raster from a vector layer using sextante "rasterize
> > vector layer". The result looks good. We then close the file and
> > re-open it, so that it obtains its real name and can be used by
> > "raster calculator". When we reopen the file, the value for no data is
> > set to "99999.0". We tried different things, setting custom value "0"
> > etc. To no avail. On the other hand, when we create a raster using the
> > "density.kernel", there has never been an issue with the no data
> > value, which is and remains set to "0".
> >
> > Please, please give us the secret about how to make and keep the no
> > data value "0" when using "rasterize vector layers" !
> >
> > Joachim
> > _______________________________________________ Sextante-users mailing
> > list Sextante-users@lists.forge.osor.eu
> > https://lists.forge.osor.eu/listinfo/sextante-users
>
>
> ------
> Files attached to this email may be in ISO 26300 format (OASIS Open
> Document Format). If you have difficulty opening them, please visit
> http://iso26300.info for more information.
>
> _______________________________________________
> Sextante-users mailing list
> Sextante-users@lists.forge.osor.eu
> https://lists.forge.osor.eu/listinfo/sextante-users
>
_______________________________________________
Sextante-users mailing list
Sextante-users@lists.forge.osor.eu
https://lists.forge.osor.eu/listinfo/sextante-users

Responder a