# File lib/graphviz/theory.rb, line 12 def adjancy_matrix matrix = GraphViz::Math::Matrix.new( @graph.node_count, @graph.node_count ) @graph.each_edge { |e| x = @graph.get_node(e.node_one( false )).index y = @graph.get_node(e.node_two( false )).index matrix[x+1, y+1] = 1 matrix[y+1, x+1] = 1 if @graph.type == "graph" } return matrix end