hnetcdf

Haskell NetCDF library https://github.com/ian-ross/hnetcdf

Latest on Hackage:0.4.0.0

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD3 licensed by Ian Ross
Maintained by ian@skybluetrades.net

hnetcdf

Build Status

Haskell NetCDF library: as well as conventional low-level FFI bindings to the functions in the NetCDF library (in the Data.NetCDF.Raw modules), 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 Storable Vectors and Repa arrays easily.

For example:

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 Storable Vector, 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
      ...

Changes

0.3.0.0

  • Breaking change: fix problem with hmatrix API -- replace HRowMajorMatrix and HColumnMajorMatrix with single HMatrix type and manage data ordering internally.

0.2.1.0

  • Update to work with hmatrix 0.16

0.2.0.0

  • Add partial output API
comments powered byDisqus