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reading Geoconcept files ?

2 messages · Jean-Luc Dupouey, Roger Bivand

Original
Jean-Luc Dupouey
# 
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:

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

            

      
      
      
    

        
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