NineSec Team Shell

#!/usr/bin/env python3 """ 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 """ ################################ # Mini Lindenmayer tool ############################### from turtle import * def replace( seq, replacementRules, n ): for i in range(n): newseq = "" for element in seq: newseq = newseq + replacementRules.get(element,element) seq = newseq return seq def draw( commands, rules ): for b in commands: try: rules[b]() except TypeError: try: draw(rules[b], rules) except: pass def main(): ################################ # Example 1: Snake kolam ################################ def r(): right(45) def l(): left(45) def f(): forward(7.5) snake_rules = {"-":r, "+":l, "f":f, "b":"f+f+f--f--f+f+f"} snake_replacementRules = {"b": "b+f+b--f--b+f+b"} snake_start = "b--f--b--f" drawing = replace(snake_start, snake_replacementRules, 3) reset() speed(3) tracer(1,0) ht() up() backward(195) down() draw(drawing, snake_rules) from time import sleep sleep(3) ################################ # Example 2: Anklets of Krishna ################################ def A(): color("red") circle(10,90) def B(): from math import sqrt color("black") l = 5/sqrt(2) forward(l) circle(l, 270) forward(l) def F(): color("green") forward(10) krishna_rules = {"a":A, "b":B, "f":F} krishna_replacementRules = {"a" : "afbfa", "b" : "afbfbfbfa" } krishna_start = "fbfbfbfb" reset() speed(0) tracer(3,0) ht() left(45) drawing = replace(krishna_start, krishna_replacementRules, 3) draw(drawing, krishna_rules) tracer(1) return "Done!" if __name__=='__main__': msg = main() print(msg) mainloop()

Name	Size	Last Modified	Owner	Permissions	Options
..	--	February 12 2024 9:08:43	root	0755
__pycache__	--	February 12 2024 9:08:43	root	0755

__init__.py	0.307 KB	December 13 2023 8:49:27	root	0644
__main__.py	14.697 KB	December 13 2023 8:49:27	root	0755
bytedesign.py	4.148 KB	December 13 2023 8:49:27	root	0755
chaos.py	0.929 KB	December 13 2023 8:49:27	root	0644
clock.py	3.126 KB	December 13 2023 8:49:27	root	0755
colormixer.py	1.308 KB	December 13 2023 8:49:27	root	0644
forest.py	2.896 KB	December 13 2023 8:49:27	root	0755
fractalcurves.py	3.392 KB	December 13 2023 8:49:27	root	0755
lindenmayer.py	2.377 KB	December 13 2023 8:49:27	root	0755
minimal_hanoi.py	2.003 KB	December 13 2023 8:49:27	root	0755
nim.py	6.36 KB	December 13 2023 8:49:27	root	0644
paint.py	1.261 KB	December 13 2023 8:49:27	root	0755
peace.py	1.041 KB	December 13 2023 8:49:27	root	0755
penrose.py	3.301 KB	December 13 2023 8:49:27	root	0755
planet_and_moon.py	2.759 KB	December 13 2023 8:49:27	root	0755
rosette.py	1.329 KB	December 13 2023 8:49:27	root	0644
round_dance.py	1.762 KB	December 13 2023 8:49:27	root	0644
sorting_animate.py	4.934 KB	December 13 2023 8:49:27	root	0755
tree.py	1.368 KB	December 13 2023 8:49:27	root	0755
turtle.cfg	0.156 KB	December 13 2023 8:49:27	root	0644
two_canvases.py	1.093 KB	December 13 2023 8:49:27	root	0644
yinyang.py	0.802 KB	December 13 2023 8:49:27	root	0755

NineSec Team - 2022