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reading idrisi .vct files

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reading idrisi .vct files

PepET
Dear listers,

I am fighting to get some old Idrisi vectro (.vct)  files to be read in R.

I am kind of an newbie in this so I hope the thread is not too much
over-repeating. I checked other posts but I could not find the solution.

1. I updated rgdal but when checkecing  ogrDrivers()  , I see  "Idrisi
FALSE" . I do not know how to install those dirvers.

2. then when checking readOGR I have read that depending on the format
"dsn" option or "layer" option may be different... how can I know what is
it for my vct Idrisi files?


Thank you,


JM

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Re: reading idrisi .vct files

Roger Bivand
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On Fri, 22 Jun 2012, Josep M Serra diaz wrote:

> Dear listers,
>
> I am fighting to get some old Idrisi vectro (.vct)  files to be read in R.
>
> I am kind of an newbie in this so I hope the thread is not too much
> over-repeating. I checked other posts but I could not find the solution.
>
> 1. I updated rgdal but when checkecing  ogrDrivers()  , I see  "Idrisi
> FALSE" . I do not know how to install those dirvers.

This should mean that the driver reads but does not write.

>
> 2. then when checking readOGR I have read that depending on the format
> "dsn" option or "layer" option may be different... how can I know what is
> it for my vct Idrisi files?

Try ogrListLayers(dsn="file.vct") to see if it lists the layers. Otherwise
you'll have to search for OGR VCT usage tips.

Roger

>
>
> Thank you,
>
>
> JM
>
> [[alternative HTML version deleted]]
>
> _______________________________________________
> R-sig-Geo mailing list
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> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
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--
Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: [hidden email]

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Roger Bivand
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Norwegian School of Economics and Business Administration
Helleveien 30
N-5045 Bergen, Norway
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Re: reading idrisi .vct files

PepET
Thank you Roger ! It did work


2012/6/22 Roger Bivand <[hidden email]>

> On Fri, 22 Jun 2012, Josep M Serra diaz wrote:
>
>  Dear listers,
>>
>> I am fighting to get some old Idrisi vectro (.vct)  files to be read in R.
>>
>> I am kind of an newbie in this so I hope the thread is not too much
>> over-repeating. I checked other posts but I could not find the solution.
>>
>> 1. I updated rgdal but when checkecing  ogrDrivers()  , I see  "Idrisi
>> FALSE" . I do not know how to install those dirvers.
>>
>
> This should mean that the driver reads but does not write.
>
>
>
>> 2. then when checking readOGR I have read that depending on the format
>> "dsn" option or "layer" option may be different... how can I know what is
>> it for my vct Idrisi files?
>>
>
> Try ogrListLayers(dsn="file.vct") to see if it lists the layers. Otherwise
> you'll have to search for OGR VCT usage tips.
>
> Roger
>
>
>>
>> Thank you,
>>
>>
>> JM
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________**_________________
>> R-sig-Geo mailing list
>> [hidden email]
>> https://stat.ethz.ch/mailman/**listinfo/r-sig-geo<https://stat.ethz.ch/mailman/listinfo/r-sig-geo>
>>
>>
> --
> Roger Bivand
> Department of Economics, NHH Norwegian School of Economics,
> Helleveien 30, N-5045 Bergen, Norway.
> voice: +47 55 95 93 55; fax +47 55 95 95 43
> e-mail: [hidden email]
>
>

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