wumpus-core: Pure Haskell PostScript and SVG generation.
Wumpus-Core is a low-level library for generating static 2D
vector pictures, its salient feature is portability due to no
FFI dependencies. It can generate PostScript (EPS) files and SVG
files. The generated PostScript code is plain and reasonably
efficient as the use of stack operations, i.e
grestore, is minimized.
Although Wumpus-Core only generates vector output, the generated PostScript can be interpreted by GraphicsMagick or a similar tool to convert EPS files into bitmap image files (e.g JPEGs).
Wumpus-Core makes pictures from paths and text labels. Paths themselves are made from points. The usual affine transformations (rotations, scaling, translations) can be applied to Pictures. Unlike PostScript there is no notion of a current point, Wumpus-Core builds pictures in a coordinate-free style.
For actually building pictures, diagrams, etc. Wumpus-Core is
very low-level. There are two supplementary packages
Wumpus-Drawing also on Hackage that aim to
be a higher-level basis for creating certain types of diagram,
but they are experimental - functionality is added and dropped
between releases and curently the API is too unstable to write
code upon (they should be considered a technology preview rather
than re-usable libraries).
Also, some of the design decisions made for Wumpus-Core are not sophisticated - e.g. how path and text attributes like colour are handled, and how the bounding boxes of text labels are calculated. Compared to other systems, Wumpus might be rather limited, however, the design permits a fairly simple implementation.
v0.42.0 to v0.42.1:
Fixed bug in the
Core.Picturewhere the wrong relative point was being calculated for the second control point.
Changed internals of the
EscapedTexttype so it supports efficient concatenation, and now has a Monoid instance.
v0.41.0 to v0.42.0:
Removed the function
Core.BoundingBox. It was unused in Wumpus-Core and had unwise error handling baked-in.
Wumpus.Core.Geometry, it is now
Fixed internal Foldable instances for JoinList. The left and right folds worked in the wrong direction.
Some improvements to the Haddock documentation.
|Versions [faq]||0.12.0, 0.13.0, 0.13.1, 0.14.0, 0.15.0, 0.16.0, 0.17.0, 0.18.0, 0.19.0, 0.20.0, 0.21.0, 0.22.0, 0.23.0, 0.30.0, 0.31.0, 0.32.0, 0.33.0, 0.34.0, 0.35.0, 0.36.0, 0.37.0, 0.40.0, 0.41.0, 0.42.0, 0.42.1, 0.43.0, 0.50.0, 0.51.0, 0.52.0, 0.52.1|
|Dependencies||base (<4.5), containers (>=0.3 && <=0.6), time (>=1.1.3 && <1.6), vector-space (>=0.6 && <1.0) [details]|
|Copyright||Stephen Tetley <email@example.com>|
|Maintainer||Stephen Tetley <firstname.lastname@example.org>|
|Revised||Revision 1 made by HerbertValerioRiedel at Sat Nov 7 11:46:37 UTC 2015|
|Uploaded||by StephenTetley at Thu Jan 20 22:25:56 UTC 2011|
|Downloads||16474 total (243 in the last 30 days)|
|Rating||(no votes yet) [estimated by rule of succession]|
Docs uploaded by user
Build status unknown [no reports yet]
- wumpus-core-0.42.1.tar.gz [browse] (Cabal source package)
- Package description (revised from the package)
Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.
For package maintainers and hackage trustees