hnetcdf: Haskell NetCDF library

[ bsd3, data, library, program ] [ Propose Tags ]

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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Versions [faq] 0.1.0.0, 0.2.0.0, 0.2.1.0, 0.2.2.0, 0.3.0.0, 0.4.0.0, 0.5.0.0
Change log CHANGELOG.markdown
Dependencies base (>=4.3 && <5), containers (>=0.5.0.0 && <0.7), filepath (==1.4.*), hnetcdf, repa (==3.4.*), transformers (>=0.2 && <0.6), vector (==0.12.*) [details]
License BSD-3-Clause
Copyright Copyright (2013) Ian Ross
Author Ian Ross
Maintainer ian@skybluetrades.net
Category Data
Home page https://github.com/ian-ross/hnetcdf
Source repo head: git clone https://github.com/ian-ross/hnetcdf
Uploaded by DominicSteinitz at Wed Feb 6 08:34:21 UTC 2019
Distributions NixOS:0.5.0.0
Executables example2, example1
Downloads 3630 total (170 in the last 30 days)
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Status Hackage Matrix CI
Docs uploaded by user [build log]
All reported builds failed as of 2019-02-06 [all 1 reports]

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Readme for hnetcdf-0.5.0.0

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hnetcdf

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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
      ...