(self, other)
Is this geometrical entity similar to another geometrical entity?

        Two entities are similar if a uniform scaling (enlarging or
        shrinking) of one of the entities will allow one to obtain the other.

        Notes
        =====

        This method is not intended to be used directly but rather
        through the `are_similar` function found in util.py.
        An entity is not required to implement this method.
        If two different types of entities can be similar, it is only
        required that one of them be able to determine this.

        See Also
        ========

        scale
Is this geometrical entity similar to another geometrical entity?
Is this geometrical entity similar to another geometrical entity?
def is_similar(self, other):
        """Is this geometrical entity similar to another geometrical entity?

        Two entities are similar if a uniform scaling (enlarging or
        shrinking) of one of the entities will allow one to obtain the other.

        Notes
        =====

        This method is not intended to be used directly but rather
        through the `are_similar` function found in util.py.
        An entity is not required to implement this method.
        If two different types of entities can be similar, it is only
        required that one of them be able to determine this.

        See Also
        ========

        scale

        """
        raise NotImplementedError()
def is_similar ( self , other ) : raise NotImplementedError ( )