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List:       r-sig-geo
Subject:    Re: [R-sig-Geo] MODIS download
From:       Babak Naimi <naimi () itc ! nl>
Date:       2011-10-27 21:28:29
Message-ID: 021F462EDC7F2B42A7038E9F9D47826121180FFCE7 () itcnt27 ! itc ! nl
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Dear Matteo,

Thanks for your nice package. Actually, I was not aware of this package. I think the \
ModisDownload and getHDF functions work almost the same since in both you can select \
a range of tiles and dates for required Modis product. The nice thing, however, about \
your package is that you only need to know the name of MODIS product for downloading \
it, while in ModisDownload you need to introduce the FTP address. In ModisDownload \
also I guess it is nice as by executing one command, you can download, subset, \
mosaic, reproject and have the images in Geotiff format. 

About wget, I think it is not necessary to have it on your machine for windows (at \
least for windows 7!). I used the following command inside ModisDownload and tested \
it on Windows and Linux. It works fine!

download.file(url,destfile=ModisName,mode='wb',method='auto',quiet=T, cacheOK=FALSE)

Best regards,
Babak



-----Original Message-----

--- On Thu, 27/10/11, Matteo Mattiuzzi <matteo.mattiuzzi@boku.ac.at> wrote:

> From: Matteo Mattiuzzi <matteo.mattiuzzi@boku.ac.at>
> Subject: [R-sig-Geo] MODIS download
> To: r-sig-geo@r-project.org
> Date: Thursday, 27 October, 2011, 9:37
> 
> Dear list, dear Babak
> 
> I recently created a package that also downloads Modis-grid
> data. I was
> waiting for the communication to the list until more tests
> have been
> absolved. But now test could now be made by interested
> people. The
> package works slightly different than the script of Babak,
> so I hope
> that we didn’t do the work totally twice. 
> The origin of the “getMODIS” package is also in Hengels
> (great thanks)
> code but the capabilities have been enhanced. 
> 
> The package has been tested with Linux and Windows 7 and it
> works fine,
> but tests are still going on! (At the moment wget is used
> for download
> the files so probably you have to install it first on your
> machine
> (thanks Pieter Beck for reminding me that)
> If you wish to use MRT capabilities you need to install it
> as well (+
> set the path to MRT!) 
> 
> > install.packages("getMODIS", repos="http://R-Forge.R-project.org")
> 
> The purpose of teh package is:
> - to get a local MODIS data archive (so only parts of the
> online pool)
> by simple subst. Everything what is available locally is
> not downloaded
> again! The main sub setting information is: Product, period
> and extent.
> The package can use objects from raster package, all
> raster* objects or
> the extent(raster*), or the “national boundaries” file
> (worldHires) from
> the mapdata package as extent information.
> 
> - to use MRT capabilites  
> 
> MRT is not fully implemented yet (tested only with
> geographic LatLon
> and UTM projection as output. My personal priority list can
> be modified
> by tester whishes).
> The manual can be downloaded here:
> http://www.wuala.com/MatteoMattiuzzi/getMODIS/
> A stepwise how to is missing yet, as soon as my time allows
> I’ll create
> it. 
> I’m happy for any feedback!
> Matteo Mattiuzzi
> 
> [[alternative HTML version deleted]]
> 
> 
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