This is mostly just a wrapper around filename from the raster package, except that
instead of returning an empty string for a RasterStack object, it will return a vector of
length >1 for RasterStack.
Filenames(obj, allowMultiple = TRUE)
# S4 method for ANY
Filenames(obj, allowMultiple = TRUE)
# S4 method for environment
Filenames(obj, allowMultiple = TRUE)
# S4 method for list
Filenames(obj, allowMultiple = TRUE)A Raster* object (i.e., RasterLayer, RasterStack, RasterBrick)
Logical. If TRUE, the default, then all relevant
filenames will be returned, i.e., in cases such as .grd where multiple files
are required. If FALSE, then only the first file will be returned,
e.g., filename.grd, in the case of default Raster format in R.
A character vector of filenames that are part of the objects passed to obj.
This returns NULL is the object is not file-backed or does not have a method
to recover the file-backed filename.
New methods can be made for this generic.