Name: zoom-cache -- The package version. See the Haskell package versioning policy -- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for -- standards guiding when and how versions should be incremented. Version: 1.2.1.3 Synopsis: A streamable, seekable, zoomable cache file format Description: zoom-cache is a fairly simple data file format for storing and summarizing streams of time-series data. The purpose of this format is to make it easy to quickly generate plots; /zooming/ refers to being able to render a window of data, and being able to quickly change the bounds of the window: to move around and to zoom in and out. . This library provides a monadic writing and an iteratee reading interface for zoom-cache files. To build GUI applications, see the scope package: . . What's neat about the zoom-cache format and library? Glad you asked! . * Data can be stored at variable or constant rates. For variable rate data, a timestamp is explicitly written into the file for every value, which is useful for recording events that occur at unpredictable times. Constant rate is useful for regularly sampled data, like most digital audio and video recordings. . * While writing a file, summary blocks (such as minimum, maximum, mean and RMS values) are written out every n samples. The summary blocks are hierarchical, such that after two have been written, a new one containing a merged summary of those is written. After two of those Level 1 summary blocks have been written, a new Level 2 summary block combining those is written, and so on. . * You can write your own zoom-cache codecs for custom data types, or to implement custom summary functions. In order to do so you provide a 'Summary' data type, functions for encoding and decoding raw data values and summaries, and a function for merging 'Summary' blocks. For details, see "Data.ZoomCache.Codec". . * Writing of raw data blocks is optional, under control of the application. If you already have the raw data stored in an easily accessible format, your zoom-cache files may just contain the summary data. On the other hand, if your input data is the result of expensive calculations you may want to store it along with the summary data so that plots of any level of detail can be rendered from a single file. . When developing applications that read or write zoom-cache files, it should be sufficient to import only the module "Data.ZoomCache". . License: BSD3 License-file: LICENSE Author: Conrad Parker Maintainer: conrad@metadecks.org Stability: Experimental Category: Development Cabal-version: >=1.8 Build-type: Simple -- tests/Properties.hs shouldn't have to go here, but the source files -- for the test-suite stanzas don't get picked up by 'cabal sdist'. Extra-source-files: tests/Properties.hs flag splitBase description: Use the split-up base package. Library if flag(splitBase) build-depends: base >= 3 && < 6 else build-depends: base < 3 Build-Depends: blaze-builder, bytestring >= 0.9 && < 0.10, containers >= 0.2 && < 0.5, data-default, iteratee >= 0.8.7.6 && < 0.9, iteratee-compress >= 0.3.0.0 && < 0.4, ListLike >= 1.0 && < 4, MonadCatchIO-transformers > 0.2 && < 0.3, mtl >= 2.0.0.0 && < 3, old-locale, QuickCheck >= 2.4.0.1, time, transformers >= 0.2 && < 0.3, type-level, unix, zlib Exposed-modules: Blaze.ByteString.Builder.ZoomCache Data.Offset Data.Iteratee.IO.OffsetFd Data.Iteratee.Offset Data.Iteratee.ZoomCache Data.Iteratee.ZoomCache.Seek Data.Iteratee.ZoomCache.Utils Data.ZoomCache Data.ZoomCache.Bool Data.ZoomCache.Codec Data.ZoomCache.Common Data.ZoomCache.Dump Data.ZoomCache.Format Data.ZoomCache.Identify Data.ZoomCache.Multichannel Data.ZoomCache.Multichannel.Common Data.ZoomCache.Multichannel.Internal Data.ZoomCache.Multichannel.List Data.ZoomCache.Multichannel.NList Data.ZoomCache.NList Data.ZoomCache.Numeric Data.ZoomCache.Numeric.Delta Data.ZoomCache.Numeric.FloatMinMax Data.ZoomCache.Numeric.IEEE754 Data.ZoomCache.Numeric.Int Data.ZoomCache.Numeric.Internal Data.ZoomCache.Numeric.Types Data.ZoomCache.Numeric.Word Data.ZoomCache.Pretty Data.ZoomCache.TrackSpec Data.ZoomCache.Types Data.ZoomCache.Unit Data.ZoomCache.Write Other-modules: Blaze.ByteString.Builder.ZoomCache.Internal Executable zoom-cache Main-is: zoom-cache.hs Hs-Source-Dirs: ., tools Build-Depends: base >= 3 && < 6, blaze-builder, bytestring >= 0.9 && < 0.10, containers >= 0.2 && < 0.5, data-default, iteratee >= 0.8.7.6 && < 0.9, iteratee-compress, ListLike >= 1.0 && < 4, MonadCatchIO-transformers > 0.2 && < 0.3, mtl >= 2.0.0.0 && < 3, old-locale, QuickCheck >= 2.4.0.1, time, transformers >= 0.2 && < 0.3, type-level, ui-command, unix, zlib Test-suite tests Type: exitcode-stdio-1.0 Hs-source-dirs: tests Main-is: Properties.hs Build-depends: base >= 3 && < 6, blaze-builder, iteratee >= 0.8.7.6 && < 0.9, test-framework >= 0.3.3 && < 0.5.0, test-framework-quickcheck2 >= 0.2.9 && < 0.3, QuickCheck >= 2.4.0.1, random == 1.0.*, transformers >= 0.2 && < 0.3, type-level, unix, zoom-cache ------------------------------------------------------------------------ -- Git repo -- source-repository head type: git location: git://github.com/kfish/zoom-cache.git