Class: Gviz::Edge

Inherits:
Struct show all
Defined in:
lib/gviz/edge.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id, attrs = {}) ⇒ Edge

Returns a new instance of Edge.

Raises:

  • (ArgumentError) 


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# File 'lib/gviz/edge.rb', line 3

def initialize(id, attrs={})
  raise ArgumentError, "edge `attrs` must a hash" unless attrs.is_a?(Hash)
  id, @st, @ed, @seq, @st_port, @ed_port = parse_id(id)
  super(id, attrs)
end

Instance Attribute Details

#attrs ⇒ Object

Returns the value of attribute attrs

Returns:

  • (Object) —

    the current value of attrs



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# File 'lib/gviz/edge.rb', line 1

def attrs
  @attrs
end

#ed ⇒ Object (readonly)

Returns the value of attribute ed.



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# File 'lib/gviz/edge.rb', line 2

def ed
  @ed
end

#ed_port ⇒ Object (readonly)

Returns the value of attribute ed_port.



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# File 'lib/gviz/edge.rb', line 2

def ed_port
  @ed_port
end

#id ⇒ Object

Returns the value of attribute id

Returns:

  • (Object) —

    the current value of id



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# File 'lib/gviz/edge.rb', line 1

def id
  @id
end

#seq ⇒ Object (readonly)

Returns the value of attribute seq.



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# File 'lib/gviz/edge.rb', line 2

def seq
  @seq
end

#st ⇒ Object (readonly)

Returns the value of attribute st.



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# File 'lib/gviz/edge.rb', line 2

def st
  @st
end

#st_port ⇒ Object (readonly)

Returns the value of attribute st_port.



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# File 'lib/gviz/edge.rb', line 2

def st_port
  @st_port
end

Instance Method Details

#nodes ⇒ Object 



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# File 'lib/gviz/edge.rb', line 16

def nodes
  [st, ed]
end

#to_s ⇒ Object 



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# File 'lib/gviz/edge.rb', line 9

def to_s
  stp = ":#{st_port}" if st_port
  edp = ":#{ed_port}" if ed_port
  edge = $graph_type==:graph ? "--" : "->"
  "#{st}#{stp} #{edge} #{ed}#{edp}"
end