dot.rb in rgl-0.5.10

- old
+ new

@@ -1,14 +1,12 @@
 # dot.rb
 #
-# $Id$
-#
 # 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.
 #
-# You need to have [GraphViz](http://www.graphviz.org) installed, because the
+# You need to have [GraphViz](https://www.graphviz.org) installed, because the
 # functions in this modul execute the GraphViz executables _dot_ or _dotty_.
 
 require 'rgl/rdot'
 
 module RGL
@@ -22,12 +20,12 @@
 
     def vertex_id(v)
       v
     end
 
-    # Return a RGL::DOT::Digraph for directed graphs or a DOT::Graph for an
-    # undirected Graph. _params_ can contain any graph property specified in
+    # Return a {DOT::Digraph} for directed graphs or a {DOT::Graph} for an
+    # undirected {Graph}. _params_ can contain any graph property specified in
     # rdot.rb.
     #
     def to_dot_graph(params = {})
       params['name'] ||= self.class.name.gsub(/:/, '_')
       fontsize       = params['fontsize'] ? params['fontsize'] : '8'
@@ -65,11 +63,11 @@
     #
     def print_dotted_on(params = {}, s = $stdout)
       s << to_dot_graph(params).to_s << "\n"
     end
 
-    # Call dotty[http://www.graphviz.org] for the graph which is written to the
+    # Call dotty[https://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") do |f|
@@ -78,10 +76,10 @@
       unless system("dotty", dotfile)
         raise "Error executing dotty. Did you install GraphViz?"
       end
     end
 
-    # Use dot[http://www.graphviz.org] to create a graphical representation of
+    # Use dot[https://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", options={})
       src = dotfile + ".dot"
       dot = dotfile + "." + fmt