Rails - Feb 2009 - Merb Mind Maps - a tutorial on RSpec, GraphViz & a little Merb

Netizens:

Crispin & Gregory''s new book, /Agile Testing: A Practical Guide for
Testers and
Agile Teams/, has a kewt "mind map" at the start of each chapter. It
inspired me
to find a way to use the "tag cloud" on a blog to draw a mind map of
the posts,
linked by their tags in common.

The result is this little project:

   http://broadcast.oreilly.com/2009/02/merb-mind-maps.html

It showcases...

  - graph theory - including Minimum Spanning Tree
  - GraphViz - to typeset the mind maps
  - Merb - a Rails-style website platform
  - Ruby - that annoying language that won''t go away
  - RSpec - a Behavior Driven Development system
  - transparent PNG files with ImageMagick drop-shadows
  - assert{ 2.0 } - an assertion that reflects its expressions
  - assert{ xpath } - the latest version of my assert_xpath system
  - TDD for algorithms & graph theory!
  - fixture-dependencies - a Rails fixture clone with more features
  - GraphvizR - a lite Ruby gem that wraps GraphViz dot notation
  - and even a tiny bit of HAML!

The algorithm itself depends on none of those things, so any blog could use the 
algorithm to present the mind-maps that are already latent within it!

-- 
   Phlip
   http://flea.sourceforge.net/PiglegToo_1.html


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