Class: GeoTriangleExt::CircumCenter

Inherits:
Object
  • Object
show all
Defined in:
lib/geo_triangle_ext/circum_center.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create(*co) ⇒ Object 



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# File 'lib/geo_triangle_ext/circum_center.rb', line 8

def create(*co)
  cc = self.new
  co.take(3).each{|c| cc.coordinates << c}
  cc
end

Instance Method Details

#center ⇒ Object 



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# File 'lib/geo_triangle_ext/circum_center.rb', line 45

def center
  return unless valid_functions?
  @center_point ||= calc_center
  @center_point
end

#coordinates ⇒ Object 



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# File 'lib/geo_triangle_ext/circum_center.rb', line 20

def coordinates
  @coordinates ||= []
  @coordinates = @coordinates.uniq
  @coordinates = @coordinates.take(3) if @coordinates.size > 3
  @coordinates
end

#functions ⇒ Object 



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# File 'lib/geo_triangle_ext/circum_center.rb', line 33

def functions
  @functions ||= create_functions
  @functions
end

#set_coordinate(x, y) ⇒ Object 



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# File 'lib/geo_triangle_ext/circum_center.rb', line 16

def set_coordinate(x, y)
  coordinates << [x, y]
end

#valid_coordinates? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/geo_triangle_ext/circum_center.rb', line 27

def valid_coordinates?
  return false unless coordinates.size == 3
  return false unless coordinates.all?{|c| c.size == 2}
  true
end

#valid_functions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/geo_triangle_ext/circum_center.rb', line 38

def valid_functions?
  return false if functions.size < 2
  return false if functions.combination(2).any?{|f1, f2|
    f1.orthogonal_slope == f2.orthogonal_slope}
  true
end