??????????????
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 173
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 174
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 175
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 176
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 177
Warning: Cannot modify header information - headers already sent by (output started at /home/mybf1/public_html/mentol.bf1.my/SS1.php:4) in /home/mybf1/public_html/mentol.bf1.my/SS1.php on line 178
ó
6”þfc @ sS d Z d d l Td „ Z d „ Z d „ Z e d k rO e ƒ Z e GHe ƒ n d S( së turtle-example-suite:
xtx_lindenmayer_indian.py
Each morning women in Tamil Nadu, in southern
India, place designs, created by using rice
flour and known as kolam on the thresholds of
their homes.
These can be described by Lindenmayer systems,
which can easily be implemented with turtle
graphics and Python.
Two examples are shown here:
(1) the snake kolam
(2) anklets of Krishna
Taken from Marcia Ascher: Mathematics
Elsewhere, An Exploration of Ideas Across
Cultures
iÿÿÿÿ( t *c C sN xG t | ƒ D]9 } d } x$ | D] } | | j | | ƒ } q W| } q
W| S( Nt ( t ranget get( t seqt replacementRulest nt it newseqt element( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt replace s
c C sW xP | D]H } y | | ƒ Wq t k
rN y t | | | ƒ WqO qO Xq Xq Wd S( N( t TypeErrort draw( t commandst rulest b( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyR & s
c C sr d „ } d „ } d „ } i | d 6| d 6| d 6d d 6} i d d 6} d
} t | | d ƒ } t ƒ t d ƒ t d d
ƒ t ƒ t ƒ t d ƒ t ƒ t | | ƒ d d l m
} | d ƒ d „ } d „ } d „ }
i | d 6| d 6|
d 6} i d d 6d d 6} d }
t ƒ t d
ƒ t d d
ƒ t ƒ t d ƒ t |
| d ƒ } t | | ƒ t d ƒ d S( Nc S s t d ƒ d S( Ni- ( t right( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt r7 s c S s t d ƒ d S( Ni- ( t left( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt l: s c S s t d ƒ d S( Ng @( t forward( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt f= s t -t +R s f+f+f--f--f+f+fR s b+f+b--f--b+f+bs
b--f--b--fi i i ià iÿÿÿÿ( t sleepc S s t d ƒ t d d ƒ d S( Nt redi
iZ ( t colort circle( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt AV s
c S sO d d l m } t d ƒ d | d ƒ } t | ƒ t | d ƒ t | ƒ d S( Niÿÿÿÿ( t sqrtt blacki i i ( t mathR R R R ( R R ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt BZ s
c S s t d ƒ t d ƒ d S( Nt greeni
( R R ( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt Fb s
t at afbfat afbfbfbfat fbfbfbfbi- s Done!( R
t resett speedt tracert htt upt backwardt downR t timeR R ( R R R t snake_rulest snake_replacementRulest snake_startt drawingR R R R" t
krishna_rulest krishna_replacementRulest
krishna_start( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt main1 s@ "
t __main__N( t __doc__t turtleR
R R6 t __name__t msgt mainloop( ( ( s< /usr/lib64/python2.7/Demo/turtle/tdemo_lindenmayer_indian.pyt s
C