Difference between revisions of "Diagrams"

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[[Category:Graphics]]
The '''diagrams''' library provides an embedded domain-specific language (EDSL) for creating simple pictures and diagrams in Haskell
 
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[[Category:Libraries]]
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[[Category:Packages]]
   
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[[Image:Diagrams-logo.png]]
* [http://code.haskell.org/diagrams/ Homepage]
 
* [http://byorgey.wordpress.com/ Blog]
 
* [http://hackage.haskell.org/cgi-bin/hackage-scripts/package/diagrams HackageDB]
 
   
 
The [http://projects.haskell.org/diagrams diagrams framework] provides an embedded domain-specific language (EDSL) for declarative drawing.
   
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This is the diagrams wiki, for collecting tips and tricks, examples, information about related projects, and any other related information. If you are looking for more structured documentation (tutorial, user manual, API reference), see the [http://projects.haskell.org/diagrams diagrams web page]. There are also [https://github.com/diagrams/diagrams-lib/issues?state=open bug] [https://github.com/diagrams/diagrams-core/issues?state=open trackers] for different parts of the project.
== Rewrite ==
 
   
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* [[/FAQ|Frequently asked questions]]
Many Haskell graphic libraries are tied to a specific rendering backend (Cairo, OpenGL, libGD etc) which makes collaboration and reuse of code and data structures very hard or impossible.
 
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* [[/Install|Installation instructions]]
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* [[/Contributing|How to contribute]]
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* [[/Projects|Projects]]: who is working on what.
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* [[/GSoC|Google Summer of Code projects]]
   
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* [[/Dev/Migrate0.7|0.6 to 0.7 migration]]: Description of API changes that may affect diagrams 0.6 code, with explanations of how to migrate to 0.7
Also some dependencies are hard to fulfill. Cairo is very difficult to install on Mac OS 10.6. If you just need to generate PDF diagrams, you could choose the pure HPDF library where e.g. Hieroglyph can not be installed because of its Cairo dependence.
 
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* [[/Dev/Migrate1.0|0.7 to 1.0 migration]]: Description of API changes that may affect diagrams 0.7 code, with explanations of how to migrate to 1.0
   
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* [[/Dev|Developer wiki]]: notes on wanted features, style guidelines, best practices, etc.
A rewrite of diagrams should include '''separate packages''' for:
 
   
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* [[/Dev/BuildStatus|Build status]] of all diagrams packages at a glance.
=== High-level code ===
 
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* [http://projects.haskell.org/diagrams/backend-tests/all-index.html Current test case results for backends side-by-side.]
* constraint solving
 
* high-level diagrams
 
** function plots
 
** histograms
 
** density diagrams
 
 
=== Low-level code ===
 
* graphical primitives
 
** text, rectangles, polygons, paths, stars, [http://www.jroller.com/aalmiray/entry/jsilhouette_0_3_released symbols]
 
*** imho there should be primitive shape typeclass, so that shapes like circles and rectangles have a "convertToPath" function. Backends like SVG can then choose to convert shapes like a rectangle to a polygon or to a SVG rectangle
 
** boolean operations of paths
 
* graphical attributes
 
** fill, stroke, arrows, shadow
 
 
=== Input/Output ===
 
 
==== Output ====
 
* interactive drawing via Cairo
 
* pure Haskell PDF export via [http://hackage.haskell.org/package/HPDF HPDF]
 
* exotic backends
 
** generate Java2d or [http://www.processing.org/ Processing] source code
 
 
==== Input ====
 
* pure Haskell PNG import via [http://hackage.haskell.org/package/pngload pngload]
 
* pure Haskell SVG import
 
 
== Inspiration ==
 
 
=== Food for thought ===
 
 
* [http://www.adobe.com/devnet/pdf/pdf_reference.html PDF reference]
 
* [http://www.w3.org/TR/SVG11/ SVG reference]
 
 
=== Related non-Haskell projects ===
 
 
* [http://asymptote.sourceforge.net/ Asymptote]
 
* [http://www.tug.org/metapost.html MetaPost]
 
* [http://www.texample.net/tikz/examples/ TikZ]
 
 
=== Related Haskell projects ===
 
 
* [http://hackage.haskell.org/package/Chart Chart]
 
* [http://hackage.haskell.org/package/gd gd]
 
* [http://www.haskell.org/haven/ Haven]
 
* [http://hackage.haskell.org/package/Hieroglyph Hieroglyph]
 
* [http://hackage.haskell.org/package/HPlot HPlot]
 
* [http://hackage.haskell.org/package/hps hps]
 
* [http://hackage.haskell.org/package/OpenVG OpenVG]
 

Revision as of 22:18, 8 January 2014


Diagrams-logo.png

The diagrams framework provides an embedded domain-specific language (EDSL) for declarative drawing.

This is the diagrams wiki, for collecting tips and tricks, examples, information about related projects, and any other related information. If you are looking for more structured documentation (tutorial, user manual, API reference), see the diagrams web page. There are also bug trackers for different parts of the project.

  • 0.6 to 0.7 migration: Description of API changes that may affect diagrams 0.6 code, with explanations of how to migrate to 0.7
  • 0.7 to 1.0 migration: Description of API changes that may affect diagrams 0.7 code, with explanations of how to migrate to 1.0
  • Developer wiki: notes on wanted features, style guidelines, best practices, etc.