class RGL::AdjacencyGraph

AdjacencyGraph is an undirected Graph. The methods add_edge and remove_edge are reimplemented: if an edge (u,v) is added or removed, then the reverse edge (v,u) is also added or removed.

Public Instance Methods

directed?() click to toggle source

Always returns false.

    # File lib/rgl/adjacency.rb
152 def directed?
153   false
154 end
remove_edge(u, v) click to toggle source

Also removes (v,u)

Calls superclass method RGL::DirectedAdjacencyGraph#remove_edge
    # File lib/rgl/adjacency.rb
158 def remove_edge(u, v)
159   super
160   @vertices_dict[v].delete(u) unless @vertices_dict[v].nil?
161 end

Protected Instance Methods

basic_add_edge(u, v) click to toggle source
    # File lib/rgl/adjacency.rb
165 def basic_add_edge(u, v)
166   super
167   @vertices_dict[v].add(u) # Insert backwards edge
168 end