The hnetcdf package

[Tags:bsd3, library, program, test]

Bindings to the Unidata NetCDF library, along with a higher-level Haskell interface that attempts to provide container polymorphic data access (initially just Storable vectors and Repa arrays).


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Properties

Versions 0.1.0.0, 0.2.0.0, 0.2.1.0, 0.2.2.0, 0.3.0.0, 0.4.0.0
Change log CHANGELOG.markdown
Dependencies base (>=4.3 && <5), containers (>=0.5.0.0 && <0.6), either (==4.4.*), errors (>=2.0 && <2.2), filepath (==1.4.*), hnetcdf, repa (==3.4.*), transformers (>=0.2 && <0.6), vector (>=0.10.9 && <0.12) [details]
License BSD3
Copyright Copyright (2013) Ian Ross
Author Ian Ross
Maintainer ian@skybluetrades.net
Stability Unknown
Category Data
Home page https://github.com/ian-ross/hnetcdf
Source repository head: git clone https://github.com/ian-ross/hnetcdf
Uploaded Sat Dec 17 17:38:03 UTC 2016 by IanRoss
Distributions NixOS:0.4.0.0
Downloads 1309 total (11 in the last 30 days)
Votes
0 []
Status Docs not available [build log]
All reported builds failed as of 2016-12-17 [all 3 reports]

Modules

  • Data
    • Data.NetCDF
      • Data.NetCDF.Metadata
      • Data.NetCDF.PutGet
      • Data.NetCDF.Raw
        • Data.NetCDF.Raw.Attributes
        • Data.NetCDF.Raw.Base
        • Data.NetCDF.Raw.PutGet
        • Data.NetCDF.Raw.Utils
      • Data.NetCDF.Repa
      • Data.NetCDF.Storable
      • Data.NetCDF.Store
      • Data.NetCDF.Types
      • Data.NetCDF.Utils
      • Data.NetCDF.Vector

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Maintainer's Corner

For package maintainers and hackage trustees

Readme for hnetcdf

Readme for hnetcdf-0.4.0.0

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
      ...