Class "GDALDriver": GDAL Driver Object
GDALDriver objects encapsulate GDAL file format
drivers. GDALDriver inherits from GDALMajorObject-class.
getGDALDriverNames() gdalDrivers() getDriverName(driver) getDriverLongName(driver) getGDALVersionInfo(str = "--version") getGDALCheckVersion() getGDALwithGEOS() rgdal_extSoftVersion() getCPLConfigOption(ConfigOption) setCPLConfigOption(ConfigOption, value) get_cached_orig_PROJ_LIB() get_cached_orig_GDAL_DATA() get_cached_set_PROJ_LIB() get_cached_set_GDAL_DATA()
driver |
An object inheriting from class 'GDALDriver' |
str |
A string, may be one of |
ConfigOption |
CPL configure option documented in https://trac.osgeo.org/gdal/wiki/ConfigOptions and elsewhere in GDAL source code |
value |
a string value to set a CPL option; NULL is used to unset the CPL option |
getGDALDriverNames, gdalDrivers:returns all driver names currently installed in GDAL, with their declared create and copy status (some drivers can create datasets, others can only copy from a prototype with a different driver.
getDriverName:returns the GDAL driver name associated with the driver object.
getDriverLongName:returns a longer driver name.
getGDALVersionInfo:returns the version of the GDAL runtime shared object.
getGDALCheckVersion:checks the version of the GDAL headers used when building the package (GDAL_VERSION_MAJOR, GDAL_VERSION_MINOR) - if the two versions differ, problems may arise (the C++ API/ABI may have changed), and rgdal should be re-installed
getGDALwithGEOS:because drivers may behave differently if GDAL itself was built with GEOS support, the function uses a heuristic to check whether GDAL has access to the GEOS Union function or not
get_cached_orig_PROJ_LIB, get_cached_orig_GDAL_DATA
The values of environment variables PROJ_LIB and GDAL_DATA as read when this package was loaded
get_cached_set_PROJ_LIB, get_cached_set_GDAL_DATA
If not "", the values set when loading this package to point to metadata files included in CRAN binary packages
Objects can be created by calls of the form new("GDALDriver", name, handle), where name: a string giving the name of a GDAL driver, handle: used internally; not for public consumption (default = NULL).
handle:Object of class "externalptr", from class "GDALMajorObject", used internally; not for public consumption
Class "GDALMajorObject", directly.
signature(.Object = "GDALDriver"): drivername: a string giving the name of a GDAL driver, handle: used internally; not for public consumption (default = NULL)
Loading the rgdal package changes the GDAL\_DATA environmental variable to the GDAL support files bundled with the package.
Timothy H. Keitt, modified by Roger Bivand
gdalDrivers()
logo <- system.file("pictures/logo.jpg", package="rgdal")[1]
x <- new("GDALReadOnlyDataset", logo)
getDriver(x)
getDriverLongName(getDriver(x))
GDAL.close(x)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.