File: sample49.rb

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ruby-graphviz 1.0.8-2
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# http://www.graphviz.org/Gallery/directed/hello.html
#
# digraph G {Hello->World}

$:.unshift( "../lib" );
require "graphviz"

GraphViz::new( :G, :type => :digraph ) { |g|
  g.world( :label => "World" ) << g.hello( :label => "Hello" )
}.output( :png => "#{$0}.png" )