[R-sig-Geo] reading idrisi .vct files

[Roger Bivand]

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
>
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>
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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: Roger.Bivand at nhh.no