Class: Silicium::Geometry::Rectangle

Inherits:
Figure
  • Object
show all
Defined in:
lib/geometry/figure.rb

Overview

TODO: Add a description

Instance Method Summary collapse

Methods included from Silicium::Geometry

#brute_min, #clockwise, #counter_clockwise, #cut_by_eq, #distance_point_line2d, #distance_point_line_normalized2d, #distance_point_to_point2d, #divide_min, #insert_eq, #minimal_convex_hull_2d, #needed_variables_order?, #not_polygon?, #oriented_area, #process_cf, #process_free_member, #process_line_by_coordinates, #put_point_in_part, #sign, #vector_length, #vectors_product

Constructor Details

#initialize(p1, p2, p3, p4) ⇒ Rectangle

Returns a new instance of Rectangle.

Raises:

  • (ArgumentError) 


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# File 'lib/geometry/figure.rb', line 38

def initialize(p1, p2, p3, p4)
  raise ArgumentError, 'This is not a rectangle.' unless valid?(p1, p2, p3, p4)

  @side1 = distance_point_to_point2d(p1, p2)
  @side2 = distance_point_to_point2d(p2, p3)
  @side3 = distance_point_to_point2d(p3, p4)
  @side4 = distance_point_to_point2d(p4, p1)
end

Instance Method Details

#area ⇒ Object 



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# File 'lib/geometry/figure.rb', line 57

def area
  @side1 * @side2
end

#perimeter ⇒ Object 



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# File 'lib/geometry/figure.rb', line 53

def perimeter
  @side1 + @side2 + @side3 + @side4
end

#valid?(p1, p2, p3, p4) ⇒ Boolean

Checks if input points form rectangle

Returns:

  • (Boolean) 


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# File 'lib/geometry/figure.rb', line 49

def valid?(p1, p2, p3, p4)
  distance_point_to_point2d(p1, p3) == distance_point_to_point2d(p2, p4)
end