Class: Coords::Shapes::Line2d

Inherits:
Object
  • Object
show all
Defined in:
lib/coords/shapes/line2d.rb

Direct Known Subclasses

Line3d

Instance Method Summary collapse

Constructor Details

#initialize(x1, y1, x2, y2) ⇒ Line2d

Returns a new instance of Line2d.



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# File 'lib/coords/shapes/line2d.rb', line 5

def initialize(x1, y1, x2, y2)
  @point1 = Coords::Cartesian2d.new(x1, y1)
  @point2 = Coords::Cartesian2d.new(x2, y2)
end

Instance Method Details

#==(line) ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 34

def ==(line)
  ((point1 == line.point1 && point2 == line.point2) || (point1 == line.point2 && point2 == line.point1))
end

#ends ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 18

def ends
  [point1, point2]
end

#length ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 26

def length
  Math.sqrt(length_squared)
end

#length_squared ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 22

def length_squared
  point1.distance_squared(point2)
end

#point1 ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 10

def point1
  @point1
end

#point2 ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 14

def point2
  @point2
end

#to_s ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 30

def to_s
  "(#{point1.x.to_s},#{point1.y.to_s}),(#{point2.x.to_s},#{point2.y.to_s})"
end

#translate(x2, y2) ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 38

def translate(x2, y2)
  translated_line = Line2d.new(point1.x, point1.y, point2.x, point2.y)
  translated_line.translate!(x2, y2)
  translated_line
end

#translate!(x2, y2) ⇒ Object 



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# File 'lib/coords/shapes/line2d.rb', line 44

def translate!(x2, y2)
  point1.translate!(x2, y2)
  point2.translate!(x2, y2)
end