Method: Rubyvis::Layout::Tree#ancestor

Defined in:
lib/rubyvis/layout/tree.rb

#ancestor(vim, v, a) ⇒ Object 



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# File 'lib/rubyvis/layout/tree.rb', line 175

def ancestor(vim, v, a) 
  (vim.ancestor.parent_node == v.parent_node) ? vim.ancestor : a
end