[R-sig-Geo] R-sig-Geo Digest, Vol 136, Issue 24

[sharoze ali]

Many Thanks Ben

It worked !!! fread of matlab works and i back scaled the data ...

Thanks again
Sharoze

On Tue, Dec 30, 2014 at 4:30 PM, <r-sig-geo-request at r-project.org> wrote:

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>    1. Re: How to read simple raster data (Benjamin.Galuardi)
>    2. ? R Sig Geo, Mario Montecinos te ha dejado un mensaje
>       (Mario Montecinos)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 29 Dec 2014 10:14:20 -0500
> From: "Benjamin.Galuardi" <galuardi at mit.edu>
> To: r-sig-geo at r-project.org
> Subject: Re: [R-sig-Geo] How to read simple raster data
> Message-ID: <54A16FCC.90900 at mit.edu>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Hi Sharoze,
>
> The data appear to be in hexadecimal form. I think Matlab is capable of
> importing this directly (fread??) but I'm not sure. If you need to use
> R, you might try this example:
>
> library(fields)
> hdat =  readBin('C:/Downloads/data/isola.157x458.phase', what = 'raw',
> size=1, n = 157*458)
>
> ndat = strtoi(pdat)  # converts from hex to numeric, assuming it is
> supposed to be numeric..
>
> image.plot(matrix(ndat, nrow=157, ncol=458))
>
> according to the documentation, the '.surf' files are 4 byte, so change
> size=4 for those.
>
> hope that helps,
>
> Ben
>
>
> On 12/27/2014 2:34 PM, sharoze ali wrote:
> > Hi All
> >
> > Iam new to this convention \format " Simple raster format " . My
> intention
> > is to use the data of the book " two-dimensional phase unwrapping theory
> > algorithms and software " which is in raster format . The link for data
> is "
> > ftp://ftp.wiley.com/sci_tech_med/phase_unwrapping/ " . Can anyone help
> me
> > on this . I want to use/convert the *RASTER DATA TO MATRIX* so that i can
> > use the my  matlab programs . Please help !!!
> >
> > Best Regards,
> > Sharoze Ali ,
> > Sharu786786 at gmail.com
> >
> >       [[alternative HTML version deleted]]
> >
> > _______________________________________________
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> > --
> > ==================================================
> > Benjamin Galuardi
> > PhD Student
> > NMFS-Seagrant Population Dynamics Fellow
> > SMAST, UMass Dartmouth
> > ================================================
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 30 Dec 2014 02:32:28 +0000
> From: Mario Montecinos <noreply+2872486877 at badoo.com>
> To: r-sig-geo at r-project.org
> Subject: [R-sig-Geo] ? R Sig Geo, Mario Montecinos te ha dejado un
>         mensaje
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> Mario Montecinos  te ha dejado un mensaje
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> End of R-sig-Geo Digest, Vol 136, Issue 24
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