ghc-diagrams

Diagrams is a full-featured framework and embedded domain-specific langauge for
creating declarative vector graphics and animations.
This package is just a convenient wrapper around the 'diagrams-core',
'diagrams-lib' and 'diagrams-contrib' packages, so they can be installed with a
single 'cabal install diagrams' command.
The package also comes with flags to enable six different backends. A
Haskell-native SVG backend (the 'diagrams-svg' package) can be selected with
'-fsvg'. This flag is enabled by default, so if you do /not/ want the SVG
backend, you must explicitly disable it with '-f-svg'. The SVG backend does not
yet quite support all the features of the cairo backend: text alignment and
embedded images are the two main missing features at this point, and of course
it can only produce SVG images. It is, however, much easier to install, so it
is the out-of-the-box default.
There is also a cairo backend (the 'diagrams-cairo' package) which can be
selected with the '-fcairo' flag. It is fully-featured and can produce PNG, PS,
PDF, SVG, or animated GIF output; however, due to its dependencies it can be
difficult to install on some platforms (notably OS X).
In addition, there is a GTK backend based on the cairo backend, for rendering
diagrams directly to GTK windows. You can enable it with the '-fgtk' flag.
The Haskell-native postscript backend (the 'diagrams-postscript' package) can
be selected with the '-fpostscript' flag. The only feature it does not support
is transparency.
There is a Rasterific backend which is also Haskell-native (the
'diagrams-rasterific' package) which can be selected with the '-frasterific'
flag. This is a fully featured backend with the ability to produce PNG, JPG,
TIFF, BMP and animated GIF output.
Finally there is a Canvas backend, also haskell native, which can be selected
with the '-fcanvas' flag. This backend allows users to write interactive images
onto their web browsers.
For more information, including a gallery of examples, tutorial, and user
manual, see the diagrams website: <http://projects.haskell.org/diagrams>.
For help, join the '#diagrams' IRC channel on Freenode or the mailing list:
<http://groups.google.com/group/diagrams-discuss>.

          

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License: BSD-3-Clause
URL: https://hackage.haskell.org/package/diagrams