Dear Brent and co-authors of diagrams, this is a very nice thing, thank you very much! I was recently missing a tool that was able to output simple PNG diagrams from the input of lists of point coordinates. My solution was very ad-hoc and suited to my background: I am only familiar with the \begin{pspicture} ... \end{pspicture} environment of LaTeX, so in my version a tex file was generated, and then compiled and converted. But your drawing package is much more adult and powerful. I only had a first view and I didn't try it, yet, but I am sure that I will migrate. Thank you for the appealing docs, this is a pleasure to read. And in contrast to lot of well-programmed Haskell packages, that rather neglect the human side of the story. Yours, Thomas B. On Wed, Dec 12, 2012 at 4:00 AM, Brent Yorgey <byorgey@seas.upenn.edu>wrote:
I am pleased to announce the release of version 0.6 of diagrams [1], a full-featured framework and embedded domain-specific language for declarative drawing. Check out the gallery [2] for examples of what it can do! [3,4]
[1] http://projects.haskell.org/diagrams [2] http://projects.haskell.org/diagrams/gallery.html [3] http://mathlesstraveled.com/2012/11/05/more-factorization-diagrams/ [4] http://projects.haskell.org/diagrams/gallery/PythagoreanTree.html
Highlights of this release include:
- Diagrams now comes with a native-Haskell SVG backend [5] by default. If you were holding off on trying diagrams because you couldn't install cairo, you no longer have an excuse!
- Proper support for subdiagrams: previous versions of diagrams-core had a mechanism for associating names with a pair of a location and an envelope. Now, names are associated with actual subdiagrams (including their location and envelope, along with all the other information stored by a diagram). This enables cool techniques like constructing a diagram in order to position its subelements and then taking it apart again, or constructing animations via keyframing.
- Traces: in addition to an envelope, each diagram now stores a "trace", which is like an embedded raytracer: given any ray (represented by a base point and a vector), the trace computes the closest point of intersection with the diagram along the ray. This is useful for determining points on the boundary of a diagram, e.g. when drawing arrows between diagrams.
- The core data structure underlying diagrams has been completely refactored and split out into its own separate package, dual-tree [6].
- Support for GHC 7.6.
- Many more new features, bug fixes, and improvements! See the release notes [7] for complete details, and the diagrams wiki [8] for help migrating from 0.5 to 0.6.
[5] http://hackage.haskell.org/package/diagrams%2Dsvg [6] http://hackage.haskell.org/package/dual%2Dtree [7] http://projects.haskell.org/diagrams/releases.html
Try it out ----------
For the truly impatient:
cabal install diagrams
Diagrams is supported under GHC 7.0 through 7.6, with the exception that the cairo and gtk backends do not build under GHC 7.0 (but the SVG backend does), and the gtk backend does not build under GHC 7.6.
To get started with diagrams, read the quick tutorial [9], which will introduce you to the fundamentals of the framework.
For those who are less impatient and want to really dig in and use the power features, read the user manual [10].
[8] http://www.haskell.org/haskellwiki/Diagrams/Migrate0.6 [9] http://projects.haskell.org/diagrams/tutorial/DiagramsTutorial.html [10] http://projects.haskell.org/manual/diagrams-manual.html
Get involved ------------
Subscribe to the project mailing list [11], and/or come hang out in the #diagrams IRC channel on freenode.org for help and discussion. Make some diagrams. Fix some bugs [12]. Submit your cool examples for inclusion in the gallery [13] or your cool code for inclusion in the diagrams-contrib [14] package!
[11] http://groups.google.com/group/diagrams-discuss [12] http://github.com/diagrams/ [13] http://projects.haskell.org/diagrams/gallery.html [14] http://hackage.haskell.org/package/diagrams%2Dcontrib
Happy diagramming!
Brought to you by the diagrams team:
- Michael Sloan - Ryan Yates - Brent Yorgey
with contributions from:
- Sam Griffin - Niklas Haas - Peter Hall - Claude Heiland-Allen - Deepak Jois - John Lato - Felipe Lessa - Chris Mears - Ian Ross - Vilhelm Sjöberg - Jim Snavely - Luite Stegeman - Kanchalai Suveepattananont - Michael Thompson - Scott Walck
_______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell