Class: Microstation::Drawing::Index

Inherits:
Object
  • Object
show all
Defined in:
lib/microstation/extensions/faa.rb

Instance Method Summary collapse

Constructor Details

#initialize(str) ⇒ Index

Returns a new instance of Index.



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# File 'lib/microstation/extensions/faa.rb', line 56

def initialize(str)
  return str if str === Index
  @nbr = str
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 85

def +(other)
  self.class.new(combined_string(digits_string(as_int + other)))
end

#-(other) ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 89

def -(other)
  self.class.new(combined_string(digits_string(as_int - other)))
end

#as_int ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 73

def as_int
  digits.to_i
end

#combined_string(dstring) ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 81

def combined_string(dstring)
  "#{discipline}#{dstring}"
end

#digits ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 65

def digits
  @nbr[1..-1]
end

#digits_string(n = digits) ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 77

def digits_string(n = digits)
  "%03d" % n
end

#discipline ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 61

def discipline
  @nbr[0].upcase
end

#pred ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 97

def pred
  self.-(1)
end

#succ ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 93

def succ
  self.+(1)
end

#to_s ⇒ Object 



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# File 'lib/microstation/extensions/faa.rb', line 69

def to_s
  combined_string(digits_string)
end