Method: Roi#displayed?

Defined in:: lib/roi/roi.rb

#displayed?(*args) ⇒ `Boolean`

Public: Placeholder for displayed?, which must be implemented by each Roi type.

Returns:

(Boolean)



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# File 'lib/roi/roi.rb', line 80

def displayed?(*args)
  raise "#{self.class.name} does not implement special method `displayed?'"
end