projInfo {rgdal} | R Documentation |
The projInfo
function lists known values and descriptions for PROJ.4 tags for tag in c("proj", "ellps", "datum")
; getPROJ4VersionInfo
returns the version of the underlying PROJ.4 release, getPROJ4libPath
returns the value of the PROJ\_LIB environment variable, projNAD
detects the presence of NAD datum conversion tables (looking for conus).
projInfo(type = "proj") getPROJ4VersionInfo() getPROJ4libPath() projNAD()
type |
One of these tags: |
The output data frame lists the information given by the proj application with flags -lp, -le or -ld.
A data frame with a name and description column, and two extra columns for the "ellps" and "datum" tags.
Loading the rgdal package changes the PROJ\_LIB
environmental variable to the PROJ.4 support files bundles with the package.
Roger Bivand Roger.Bivand@nhh.no
getPROJ4VersionInfo() projInfo()