[R-sig-Geo] reading Geoconcept files ?

[Roger Bivand]

On Wed, 30 Aug 2017, Jean-Luc Dupouey wrote:

> Dear all,
>
> is it possible to read Geoconcept files (.gcm and .GCR) in R? 
> ogrDrivers()$name indicates that a Geoconcept driver exists, but I was not 
> able to read any data. I get a "Cannot open data source" error:

See:

http://www.gdal.org/drv_geoconcept.html

and note that it only supports *.gxt or *.txt formats. For these, try 
ogrListLayers() first on the file name as dsn=.

Roger

>
>>  ogrDrivers()[ogrDrivers()$name=="Geoconcept",]
>         name  long_name write  copy isVector
> 11 Geoconcept Geoconcept  TRUE FALSE     TRUE
>>
>>  list.files(path=".",pattern="nvcarte.*")
> [1] "nvcarte.GCM" "nvcarte.GCR"
>>
>>  readOGR(dsn=".",layer="nvcarte")
> Error in ogrInfo(dsn = dsn, layer = layer, encoding = encoding, use_iconv = 
> use_iconv,  :
>   Cannot open data source
>
> Did anyone successfully use this driver? What is the syntax?
>
> Thank you for your help,
>
> Jean-Luc Dupouey
>
>

-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
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Editor-in-Chief of The R Journal, https://journal.r-project.org/index.html
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