module Util3D
  def self.check_arg_type(type, instance)
    unless(instance.kind_of?(type))
      raise(ArgumentError::new("type mismatch: #{instance.class} for #{type}"))
    end
  end

  def self.raise_argurment_error(instance)
    raise(ArgumentError::new("type mismatch: #{instance.class}"))
  end
end

module GMath3D
  # Including 'vertices' methodshould be implimented that gets geometry vertices as Array of Vector3.
  module BoxAvailable
    # [Output]
    #  return axially aligned bounding box as Box.
    def box
      return Box.from_points( vertices )
    end
  end
end