Class: Sevgi::Geometry::Rect

Inherits:
Element
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/sevgi/geometry/elements/rect.rb

Overview

rubocop:disable Metrics/ClassLength

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Element

#at, #bh, #bw, #ignorable?, #position, #position!

Constructor Details

#initialize(position: nil, width:, height:) ⇒ Rect 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 18

def initialize(position: nil, width:, height:)
  super()

  @position = position || Point.origin
  @width    = width.to_f
  @height   = height.to_f

  compute
end

Instance Attribute Details

#corner ⇒ Object (readonly)

Returns the value of attribute corner.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 16

def corner
  @corner
end

#corners ⇒ Object (readonly)

Returns the value of attribute corners.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 16

def corners
  @corners
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 15

def height
  @height
end

#side ⇒ Object (readonly)

Returns the value of attribute side.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 16

def side
  @side
end

#sides ⇒ Object (readonly)

Returns the value of attribute sides.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 16

def sides
  @sides
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/sevgi/geometry/elements/rect.rb', line 15

def width
  @width
end

Class Method Details

.[](width, height, position = nil) ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 115

def [](width, height, position = nil) = new(width:, height:, position:)

.with_points(p, q) ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 117

def with_points(p, q)
  top  = p.above?(q) ? p : q
  left = p.left?(q)  ? p : q

  new(
    position: Point[left.x, top.y],
    width:    F.width(p, q),
    height:   F.height(p, q)
  )
end

Instance Method Details

#box ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 28

def box
  self
end

#diagonal ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 32

def diagonal
  Segment.forward(top_left, bottom_right)
end

#eql?(other) ⇒ Boolean Also known as: == 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 36

def eql?(other)
  self.class == other.class && [ position, width, height ] == [ other.position, other.width, other.height ]
end

#hash ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 40

def hash
  [ self.class, position, width, height ].hash
end

#height! ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 44

def height!(...)
  F.approx(height, ...)
end

#inside?(point) ⇒ Boolean 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 48

def inside?(point)
  onto?(point) || (left.right?(point) && right.left?(point) && top.left?(point) && bottom.right?(point))
end

#intersection(line, precision: nil) ⇒ Object

codebeat:disable



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# File 'lib/sevgi/geometry/elements/rect.rb', line 53

def intersection(line, precision: nil)
  points = sides.map { _1.intersection(line).approx(precision) }.uniq.select { onto?(_1) }
  return if points.empty?

  Error.("Unexpected number of intersection points: #{points.size}") if points.size > 2

  Segment.forward(*points)
end

#onto?(point) ⇒ Boolean

codebeat:enable



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# File 'lib/sevgi/geometry/elements/rect.rb', line 63

def onto?(point)
  left.onto?(point) || right.onto?(point) || top.onto?(point) || bottom.onto?(point)
end

#orient(new_orientation) ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 67

def orient(new_orientation)
  return self if orientation == new_orientation

  with(width: height, height: width)
end

#orientation ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 73

def orientation
  F.gt?(width, height) ? :landscape : :portrait
end

#outside?(point) ⇒ Boolean 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 77

def outside?(point)
  !inside?(point)
end

#to_s ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 81

def to_s
  strings = []

  strings << "R[#{F.approx(width)}x#{F.approx(height)}]"
  strings << position.to_s if Point.eq?(position, Point.origin)

  strings.join("@")
end

#translate(dx: nil, dy: nil) ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 90

def translate(dx: nil, dy: nil)
  self.class.new(position: position.translate(dx:, dy:), width: width, height: height)
end

#width! ⇒ Object 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 94

def width!(...)
  F.approx(width, ...)
end

#zero?(precision = nil) ⇒ Boolean 



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# File 'lib/sevgi/geometry/elements/rect.rb', line 98

def zero?(precision = nil)
  Point.eq?(top_left, bottom_right, precision:)
end