Send grass-windows mailing list submissions to
grass-windows@lists.osgeo.org
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.osgeo.org/mailman/listinfo/grass-windows
or, via email, send a message with subject or body 'help' to
grass-windows-requ...@lists.osgeo.org
You can reach the person managing the list at
grass-windows-ow...@lists.osgeo.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of grass-windows digest..."
Today's Topics:
1. Zonal Statistics - min (rasmus borgstr?m)
2. Re: Zonal Statistics - min (Markus Neteler)
3. Re: Zonal Statistics - min (Markus Neteler)
----------------------------------------------------------------------
Message: 1
Date: Thu, 10 Mar 2011 01:42:39 -0800 (PST)
From: rasmus borgstr?m <r...@gras.ku.dk>
Subject: [GRASS-windows] Zonal Statistics - min
To: grass-windows@lists.osgeo.org
Message-ID: <1299750159626-6157065.p...@n2.nabble.com>
Content-Type: text/plain; charset=us-ascii
Hi
I want to calculate the minimum value of a floating point MODIS image
(MODISraster) based on defined area of interest (DOSraster) and store this
value in a new raster. This can be done by using Zonal Statistics in ArcGIS,
but how is it done in GRASS?
I tried this one out:
r.statistics base=DOSraster cover=MODISraster out=minstats method=min
r.category minstats
r.mapcalc "field=@minstats"
r.univar field
The processing looks fine, but I end my with all 0's (also tried with max,
average etc.; same results)
Can anyone help me out on this rather simple calculation?
I have uploaded MODISraster and DOSraster file if anyone wants to test...
http://osgeo-org.1803224.n2.nabble.com/file/n6157065/MOD02QKM.A2009033.0320_UTM48N_EV_250_RefSB_b0.tif
MOD02QKM.A2009033.0320_UTM48N_EV_250_RefSB_b0.tif &
http://osgeo-org.1803224.n2.nabble.com/file/n6157065/dosraster.tif
dosraster.tif
Cheers, Rasmus
--
View this message in context:
http://osgeo-org.1803224.n2.nabble.com/Zonal-Statistics-min-tp6157065p6157065.html
Sent from the Grass - Win mailing list archive at Nabble.com.
------------------------------
Message: 2
Date: Thu, 10 Mar 2011 11:02:29 +0100
From: Markus Neteler <nete...@osgeo.org>
Subject: Re: [GRASS-windows] Zonal Statistics - min
To: rasmus borgstr?m <r...@gras.ku.dk>
Cc: grass-windows@lists.osgeo.org
Message-ID:
<AANLkTi=gedrB2Js3iRi4oj+awT=8t9ud9t9sgyjhj...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On Thu, Mar 10, 2011 at 10:42 AM, rasmus borgstrøm <r...@gras.ku.dk> wrote:
> Hi
>
> I want to calculate the minimum value of a floating point MODIS image
> (MODISraster) based on defined area of interest (DOSraster) and store this
> value in a new raster. This can be done by using Zonal Statistics in ArcGIS,
> but how is it done in GRASS?
For GRASS 6, there is the Addon r.univar.zonal:
https://svn.osgeo.org/grass/grass-addons/raster/r.univar.zonal/r.univar.zonal.html
which has been integrated into GRASS 7 into r.univar:
http://grass.osgeo.org/grass70/manuals/html70_user/r.univar.html
As a solution, either install the Addon in GRASS 6 or use GRASS 7.
Markus
------------------------------
Message: 3
Date: Thu, 10 Mar 2011 17:14:23 +0100
From: Markus Neteler <nete...@osgeo.org>
Subject: Re: [GRASS-windows] Zonal Statistics - min
To: rasmus borgstr?m <r...@gras.ku.dk>
Cc: grass-windows@lists.osgeo.org
Message-ID:
<AANLkTimvF2TTrerHmuDsX=pSCmh4Hg=uj-kmkhmje...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On Thu, Mar 10, 2011 at 11:02 AM, Markus Neteler <nete...@osgeo.org> wrote:
> On Thu, Mar 10, 2011 at 10:42 AM, rasmus borgstrøm <r...@gras.ku.dk> wrote:
>> Hi
>>
>> I want to calculate the minimum value of a floating point MODIS image
>> (MODISraster) based on defined area of interest (DOSraster) and store this
>> value in a new raster. This can be done by using Zonal Statistics in ArcGIS,
>> but how is it done in GRASS?
>
> For GRASS 6, there is the Addon r.univar.zonal:
> https://svn.osgeo.org/grass/grass-addons/raster/r.univar.zonal/r.univar.zonal.html
>
> which has been integrated into GRASS 7 into r.univar:
> http://grass.osgeo.org/grass70/manuals/html70_user/r.univar.html
>
> As a solution, either install the Addon in GRASS 6 or use GRASS 7.
winGRASS7 is back now:
http://josef.fsv.cvut.cz/wingrass/grass70/
Markus
------------------------------
_______________________________________________
grass-windows mailing list
grass-windows@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-windows
End of grass-windows Digest, Vol 54, Issue 6
********************************************
