Class: Geometry::PointInPolygon

Inherits:
Struct
  • Object
show all
Extended by:
Memoist
Defined in:
lib/geometry/algorithms/point_in_polygon.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#point ⇒ Object

Returns the value of attribute point

Returns:

  • (Object) —

    the current value of point



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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 2

def point
  @point
end

#polygon ⇒ Object

Returns the value of attribute polygon

Returns:

  • (Object) —

    the current value of polygon



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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 2

def polygon
  @polygon
end

Instance Method Details

#inside? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 5

def inside?
  point_location == :inside
end

#on_the_boundary? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 13

def on_the_boundary?
  point_location == :on_the_boundary
end

#outside? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 9

def outside?
  point_location == :outside
end

#point_location ⇒ Object 



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# File 'lib/geometry/algorithms/point_in_polygon.rb', line 17

def point_location
  return :outside unless bounding_box.contains?(point)
  return :on_the_boundary if point_is_vertex? || point_on_edge?

  intersection_count(choose_good_ray).odd? ? :inside : :outside
end