def METHOD_NAME(self, point):
    """ Test if the point (an x, y tuple) is within this polygonal region.
    To perform the test, we use the winding number inclusion algorithm,
    referenced in the comp.graphics.algorithms FAQ
    (http://www.faqs.org/faqs/graphics/algorithms-faq/) and described in
    detail here:
    http://softsurfer.com/Archive/algorithm_0103/algorithm_0103.htm
    """
    point_array = array((point,))
    vertices = array(self.model.points)
    winding = self.inside_rule == "winding"
    result = points_in_polygon(point_array, vertices, winding)
    return result[0]