Class: Draught::Curve

Inherits:
Object
  • Object
show all
Includes:
Pointlike
Defined in:
lib/draught/curve.rb

Overview

An abstract representation of a curve in a pointlike fashion, in the way a CubicBezier is pointlike

Instance Method Summary collapse

Methods included from Pointlike

#points

Constructor Details

#initialize(args = {}) ⇒ Curve

Returns a new instance of Curve.



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# File 'lib/draught/curve.rb', line 12

def initialize(args = {})
  @point = args.fetch(:point)
  @cubic_beziers = args.fetch(:cubic_beziers).dup.freeze
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/draught/curve.rb', line 33

def ==(other)
  other.point_type == point_type && other.point == point &&
    other.as_cubic_beziers == as_cubic_beziers
end

#approximates?(other, delta) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/draught/curve.rb', line 38

def approximates?(other, delta)
  other.point_type == point_type &&
    point.approximates?(other.point, delta) &&
    number_of_segments == other.number_of_segments &&
    as_cubic_beziers.zip(other.as_cubic_beziers).all? { |a, b|
      a.approximates?(b, delta)
    }
end

#as_cubic_beziers ⇒ Object 



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# File 'lib/draught/curve.rb', line 29

def as_cubic_beziers
  @cubic_beziers
end

#point_type ⇒ Object 



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# File 'lib/draught/curve.rb', line 25

def point_type
  :curve
end

#transform(transformer) ⇒ Object 



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# File 'lib/draught/curve.rb', line 59

def transform(transformer)
  self.class.new({
    point: @point.transform(transformer),
    cubic_beziers: @cubic_beziers.map { |c| c.transform(transformer) }
  })
end

#translate(vector) ⇒ Object 



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# File 'lib/draught/curve.rb', line 52

def translate(vector)
  self.class.new({
    point: @point.translate(vector),
    cubic_beziers: @cubic_beziers.map { |c| c.translate(vector) }
  })
end

#x ⇒ Object 



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# File 'lib/draught/curve.rb', line 17

def x
  @point.x
end

#y ⇒ Object 



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# File 'lib/draught/curve.rb', line 21

def y
  @point.y
end