Method: Ruby2D::Line#contains?

Defined in:
lib/ruby2d/line.rb

#contains?(x, y) ⇒ Boolean

Line contains a point if the point is closer than the length of line from both ends and if the distance from point to line is smaller than half of the width. Check en.wikipedia.org/wiki/Distance_from_a_point_to_a_line for reference

Returns:

  • (Boolean) 


34
35
36
37
38
 
# File 'lib/ruby2d/line.rb', line 34

def contains?(x, y)
  points_distance(x1, y1, x, y) < length and
  points_distance(x2, y2, x, y) < length and
  (((@y2 - @y1) * x - (@x2 - @x1) * y + @x2 * @y1 - @y2 * @x1).abs / length) < 0.5 * @width
end