def scale(self, x, y, z=0.0, tolerance=0.0, precision=8, srid=None,
              format=None, **kwargs):
        if not any((tolerance, srid, format)):
            return super(GeoQuerySet, self).scale(x, y, z, **kwargs)
        transform = self._transform(srid)
        scale = self._scale % (transform, x, y)
        simplify = self._simplify(scale, tolerance)
        return self._as_format(simplify, format, precision)
Returns a GeoQuerySet with scaled and optionally reprojected and
dataset/ETHPy150Open bkg/django-spillway/spillway/query.py/GeoQuerySet.scale