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?()
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Always returns false.
# File lib/rgl/adjacency.rb, line 152 def directed? false end
remove_edge(u, v)
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Also removes (v,u)
Calls superclass method
RGL::DirectedAdjacencyGraph#remove_edge
# File lib/rgl/adjacency.rb, line 158 def remove_edge(u, v) super @vertices_dict[v].delete(u) unless @vertices_dict[v].nil? end
Protected Instance Methods
basic_add_edge(u, v)
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Calls superclass method
RGL::DirectedAdjacencyGraph#basic_add_edge
# File lib/rgl/adjacency.rb, line 165 def basic_add_edge(u, v) super @vertices_dict[v].add(u) # Insert backwards edge end