linkGDAL | R Documentation |
Locate and set up 'GDAL - Geospatial Data Abstraction Librar' API bindings
linkGDAL( bin_GDAL = NULL, searchLocation = NULL, ver_select = FALSE, quiet = TRUE, returnPaths = TRUE )
bin_GDAL |
string contains path to where the gdal binaries are located |
searchLocation |
string hard drive letter default is |
ver_select |
boolean default is FALSE. If there is more than one 'GDAL' installation and |
quiet |
boolean switch for supressing messages default is TRUE |
returnPaths |
boolean if set to FALSE the pathes of the selected version are written to the PATH variable only, otherwise all paths and versions of the installed GRASS versions ae returned. |
It looks for the gdalinfo(.exe)
file. If the file is found in a bin
folder it is assumed to be a valid 'GDAL' binary installation.
if called without any parameter linkGDAL()
it performs a full search over the hardrive C:
. If it finds one or more 'GDAL' binaries it will take the first hit. You have to set ver_select = TRUE
for an interactive selection of the preferred version.
add gdal pathes to the enviroment and creates global variables path_GDAL
You may also set the path manually. Using a 'OSGeo4W64' https://trac.osgeo.org/osgeo4w/ installation it is typically C:/OSGeo4W64/bin/
Chris Reudenbach
## Not run: # call if you do not have any idea if and where GDAL is installed gdal<-linkGDAL() if (gdal$exist) { # call it for a default OSGeo4W installation of the GDAL print(gdal) } ## End(Not run)
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