�
� fy � � � d Z ddlmZmZ ddlmZ d� Zd� Zd� Z e
dk r! e � � Z e e � � e� � dS dS ) a� turtle-example-suite:
tdemo_tree.py
Displays a 'breadth-first-tree' - in contrast
to the classical Logo tree drawing programs,
which use a depth-first-algorithm.
Uses:
(1) a tree-generator, where the drawing is
quasi the side-effect, whereas the generator
always yields None.
(2) Turtle-cloning: At each branching point
the current pen is cloned. So in the end
there are 1024 turtles.
� )�Turtle�mainloop)� perf_counterc # �Z K � |dk r�g }| D ]}|� |� � |� � � }|� |� � |� |� � |� |� � |� |� � ��t |||z ||� � D ]}dV � �dS dS )z� plist is list of pens
l is length of branch
a is half of the angle between 2 branches
f is factor by which branch is shortened
from level to level.� N)�forward�clone�left�right�append�tree)�plist�l�a�f�lst�p�q�xs �(/usr/lib64/python3.11/turtledemo/tree.pyr
r
s� � � � � �1�u�u���� � �A�
�I�I�a�L�L�L���� � �A�
�F�F�1�I�I�I�
�G�G�A�J�J�J� �J�J�q�M�M�M� �J�J�q�M�M�M�M��c�1�Q�3��1�%�%� � �A��J�J�J�J�
�u� � � c �� � t � � } | � d � � | � � � | � d� � | � � � � dd� � | � d� � | � � � | � d� � | � � � t | gddd� � }|D ]}�d S )Nr � �Z i.����� �A gffffff�?) r �
setundobuffer�
hideturtle�speed� getscreen�tracerr
�penupr �pendownr
)r �tr s r �maketreer% ' s� � ����A��O�O�D�����L�L�N�N�N��G�G�A�J�J�J��K�K�M�M����A� � � ��F�F�2�J�J�J��G�G�I�I�I��I�I�d�O�O�O��I�I�K�K�K� �a�S�#�r�6�"�"�A�
�
�
�� �
�
r c �f � t � � } t � � t � � }d|| z
z S )Nzdone: %.2f sec.)�clockr% )r �bs r �mainr) 5 s, � � �g�g�A� �J�J�J� �g�g�A� ��!�� $�$r �__main__N)
�__doc__�turtler r �timer r' r
r% r) �__name__�msg�print� r r �<module>r2 s� ��� � $� #� #� #� #� #� #� #� &� &� &� &� &� &�� � �$
�
�
� %� %� %� �z���
�$�&�&�C� �E�#�J�J�J� �H�J�J�J�J�J� �r