dot.rb in rgl-0.3.0

- old
+ new

@@ -1,8 +1,8 @@
 # dot.rb
 # 
-# $Id: dot.rb,v 1.5 2005/02/04 22:41:46 monora Exp $
+# $Id: dot.rb,v 1.7 2008/02/26 06:01:22 javanthropus Exp $
 # 
 # Minimal Dot support, based on Dave Thomas's dot module (included in rdoc).
 # rdot.rb is a modified version which also contains support for undirected
 # graphs.
 
@@ -21,17 +21,17 @@
     fontsize   = params['fontsize'] ? params['fontsize'] : '8'
     graph      = (directed? ? DOT::DOTDigraph : DOT::DOTSubgraph).new(params)
     edge_class = directed? ? DOT::DOTDirectedEdge : DOT::DOTEdge
     each_vertex do |v|
       name = v.to_s
-      graph << DOT::DOTNode.new('name'     => '"' + name + '"',
+      graph << DOT::DOTNode.new('name'     => name,
                                 'fontsize' => fontsize,
                                 'label'    => name)
     end
     each_edge do |u,v|
-      graph << edge_class.new('from'     => '"'+ u.to_s + '"',
-                              'to'       => '"'+ v.to_s + '"',
+      graph << edge_class.new('from'     => u.to_s,
+                              'to'       => v.to_s,
                               'fontsize' => fontsize)
       end
       graph
     end
 
@@ -39,22 +39,22 @@
 
     def print_dotted_on (params = {}, s = $stdout)
       s << to_dot_graph(params).to_s << "\n"
     end
 
-    # Call +dotty+ for the graph which is written to the file 'graph.dot'
+    # Call dotty[http://www.graphviz.org] for the graph which is written to the file 'graph.dot'
     # in the # current directory.
 
     def dotty (params = {})
       dotfile = "graph.dot"
       File.open(dotfile, "w") {|f|
         print_dotted_on(params, f)
       }
       system("dotty", dotfile)
     end
 
-    # Use +do+ to create a graphical representation of the graph.  Returns the
-    # filename of the graphics file.
+    # Use dot[http://www.graphviz.org] to create a graphical representation of
+    # the graph.  Returns the filename of the graphics file.
 
     def write_to_graphic_file (fmt='png', dotfile="graph")
       src = dotfile + ".dot"
       dot = dotfile + "." + fmt
       