From: "Mehr, Assaph (Assaph)" <assaph@...>
Date: 2004-04-20T15:36:38+09:00
Subject: [ANN] ObjectGraph 0.5.0


http://objectgraph.rubyforge.org

Added Features:
* Filtering based on common base class
* Filtering based on name-space

What the...?
==========
A simple script that generates a graph of the ruby class hierarchy.
The script relies on GraphViz for generation of the PNG and HTML map
files.

Take a look at http://objectgraph.rubyforge.org for some samples,
including 
a useful (I hope :) example of the Exception Class Hierarchy.

Why?
===
Because it's neat. And because the online PickAxe seems to be missing
some graphs. And because many nubys (myself included) don't always know
the Exception inheritance hierarchy. And because I was home sick and
needed something to do (which is a nice excuse why the code may not be
all that great :).

Features:
=========
* Supports multiple layout engines (dot, neato, twopi and circo).
* Supports multiple output formats by GraphViz (PNG, JPEG etc.)
* Errno::... classes can be omitted.
* Classes can be filtered based on common base class or name space.
* Clicking on a class node should go to the ruby-doc.org documentation
for that class.

Installation:

* Install GraphViz and make sure that the executables are on the path.
* Get the graph.rb file. (Sorry, CVS only at this stage.)
* Call "ruby graph.rb ..." (usage info at home page)
* Look at the pretty pictures :). Hint: open the HTML page to get the
links.