Method: Geometry::TwoPointLine#intercept

Defined in:
lib/geometry/line.rb

#intercept(axis = :y) ⇒ Number

Find the requested axis intercept

Parameters:

  • axis (Symbol) (defaults to: :y) —

    the axis to intercept (either :x or :y)

Returns:

  • (Number) —

    the location of the intercept



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# File 'lib/geometry/line.rb', line 281

def intercept(axis=:y)
    case axis
  when :x
      vertical? ? first.x : (horizontal? ? nil : (first.x - first.y/slope))
  when :y
      vertical? ? nil : (horizontal? ? first.y : (first.y - slope * first.x))
    end
end