Class LinearRing

django/contrib/gis/geos/linestring.py:185–193

# LinearRings are LineStrings used within Polygons.
class LinearRing(LineString):
    _minlength = 4
    _init_func = capi.create_linearring

    @property
    def is_counterclockwise(self):
        if self.empty:
            raise ValueError("Orientation of an empty LinearRing cannot be determined.")
        return self._cs.is_counterclockwise