Haskell NetCDF library: as well as conventional low-level FFI bindings
to the functions in the NetCDF library (in the
hnetcdf provides a higher-level Haskell interface
(currently only for reading data). This higher-level interface aims
to provide a "container polymorphic" view of NetCDF data allowing
NetCDF variables to be read into
Vectors and Repa arrays
import Data.NetCDF import Foreign.C import qualified Data.Vector.Storable as SV ... type SVRet = IO (Either NcError (SV.Vector a)) ... enc <- openFile "tst.nc" ReadMode case enc of Right nc -> do eval <- get nc "varname" :: SVRet CDouble ...
gets the full contents of a NetCDF variable as a
while the following code reads the same variable (assumed to be
three-dimensional) into a Repa array:
import Data.NetCDF import Foreign.C import qualified Data.Array.Repa as R import qualified Data.Array.Repa.Eval as RE import Data.Array.Repa.Repr.ForeignPtr (F) ... type RepaRet3 a = IO (Either NcError (R.Array F R.DIM3 a)) ... enc <- openFile "tst.nc" ReadMode case enc of Right nc -> do eval <- get nc "varname" :: RepaRet3 CDouble ...