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glejeune / Ruby-Graphviz

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- 0.9.5
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Ruby interface to the GraphViz graphing tool — Read more

https://algorithmique.net

This URL has Read+Write access

Issue #7 : path option is never being used to find the executable

glejeune (author)

Mon Jan 04 11:21:29 -0800 2010

commit 63317226e4f854c02e595ffbcbac3ca76ab36bbf
tree a265756be14c28294199f4f74e7ed6c407a4b875
parent 5e5d115b51aea43aba97c2b3608e775bc93ee640

Ruby-Graphviz /

name	age	history message
.gitignore	Thu Nov 05 12:21:56 -0800 2009	Update version ans ChangeLog [glejeune]
AUTHORS	Sat Dec 26 06:36:46 -0800 2009	Update node an graph [glejeune]
COPYING	Sun Aug 02 06:07:32 -0700 2009	SVN import [glejeune]
ChangeLog.rdoc	Mon Jan 04 11:21:29 -0800 2010	Issue #7 : path option is never being used to f... [glejeune]
README.rdoc	Mon Oct 19 11:58:28 -0700 2009	README corrections [greg]
Rakefile	Sun Dec 13 08:14:36 -0800 2009	Issue #3 [glejeune]
bin/	Sat Dec 26 06:36:46 -0800 2009	Update node an graph [glejeune]
examples/	Sat Dec 26 06:36:46 -0800 2009	Update node an graph [glejeune]
lib/	Mon Jan 04 11:21:29 -0800 2010	Issue #7 : path option is never being used to f... [glejeune]
setup.rb	Sun Aug 02 06:07:32 -0700 2009	SVN import [glejeune]

README.rdoc

Ruby/GraphViz

Doc : rdoc.info/projects/glejeune/Ruby-Graphviz
Sources : github.com/glejeune/Ruby-Graphviz

DESCRIPTION

Interface to the GraphViz graphing tool

SYNOPSIS

A basic example

  require 'graphviz'
  # Create a new graph
  g = GraphViz.new( :G, :type => :digraph )
  # Create two nodes
  hello = g.add_node( "Hello" )
  world = g.add_node( "World" )
  # Create an edge between the two nodes
  g.add_edge( hello, world )
  # Generate output image
  g.output( :png => "hello_world.png" )

The same but with a block

  require 'graphviz'
  GraphViz::new( :G, :type => :digraph ) { |g|
    g.world( :label => "World" ) << g.hello( :label => "Hello" )
  }.output( :png => "hello_world.png" )

Create a graph from a file

  require 'graphviz'
  # In this example, hello.dot is :
  #   digraph G {Hello->World;}
  GraphViz.parse( "hello.dot", :path => "/usr/local/bin" ) { |g|
    g.get_node("Hello") { |n|
      n[:label] = "Bonjour"
    }
    g.get_node("World") { |n|
      n[:label] = "Le Monde"
    }
  }.output(:png => "sample.png")

INSTALLATION

  sudo gem install ruby-graphviz

You also need to install GraphViz and Treetop

On Windows you also need to install win32-open3. This is not an absolute requirement.

LICENCE

Ruby/GraphViz is freely distributable according to the terms of the GNU General Public License (see the file ‘COPYING’).

This program is distributed without any warranty. See the file ‘COPYING’ for details.