Bounce off of the shoreline.

            NOTE: This does not work, but left here for future implementation

            feature = Linestring of two points, being the line segment the particle hit.
            angle = decimal degrees from 0 (x-axis), couter-clockwise (math style)

def __bounce(self, **kwargs):
        """
            Bounce off of the shoreline.

            NOTE: This does not work, but left here for future implementation

            feature = Linestring of two points, being the line segment the particle hit.
            angle = decimal degrees from 0 (x-axis), couter-clockwise (math style)
        """
        start_point = kwargs.pop('start_point')
        hit_point = kwargs.pop('hit_point')
        end_point = kwargs.pop('end_point')
        feature = kwargs.pop('feature')
        distance = kwargs.pop('distance')
        angle = kwargs.pop('angle')

        # Figure out the angle of the shoreline here (beta)
        points_in_shore = map(lambda x: Point(x), list(feature.coords))
        points_in_shore = sorted(points_in_shore, key=lambda x: x.x)

        # The point on the left (least longitude is always the first Point)
        first_shore = points_in_shore[0]
        last_shore = points_in_shore[-1]

        shoreline_x = abs(abs(first_shore.x) - abs(last_shore.x))
        shoreline_y = abs(abs(first_shore.y) - abs(last_shore.y))
        beta = math.degrees(math.atan(shoreline_x / shoreline_y))

        theta = 90 - angle - beta
        bounce_azimuth = AsaMath.math_angle_to_azimuth(angle=2 * theta + angle)

        print "Beta:           " + str(beta)
        print "Incoming Angle: " + str(angle)
        print "ShorelineAngle: " + str(theta + angle)
        print "Bounce Azimuth: " + str(bounce_azimuth)
        print "Bounce Angle:   " + str(AsaMath.azimuth_to_math_angle(azimuth=bounce_azimuth))

        after_distance = distance - AsaGreatCircle.great_distance(start_point=start_point, end_point=hit_point)['distance']
        
        new_point = AsaGreatCircle.great_circle(distance=after_distance, azimuth=bounce_azimuth, start_point=hit_point)
        return Location4D(latitude=new_point['latitude'], longitude=new_point['longitude'], depth=start_point.depth)