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This article mainly explains "how to use Python to achieve magical tree effect", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let the editor take you to learn "how to use Python to achieve magical tree effect"!

Turtle is a magical little sea turtle that can draw a world. And turtle joined the python family, like a tortoise to get water, and became more popular.

The ancients have a poem saying, "there are strange trees in the court, green leaves bloom", the beauty of the tree, or graceful, or luxuriant, or vigorous, or green. Python-turtle 's trees have a different flavor.

Red cherry trees are newly planted in the small garden, and it is easy to travel around the flower shop.

# coding=gbk import turtle as Timport randomimport time # painting the torso of cherry blossoms (60) def Tree (branch) T): time.sleep (0.0005) if branch > 3: if 8 0.7: pu () # falling t = heading () an =-40 + random () * 40 setheading (an) dis = int (800 * random () * 0.5 + Forward (dis) setheading (t) # draw leaves pd () right (90) n = cos (radians (heading ()-45)) / 4 + 0.5 pencolor (n * 0.5 + 0.5) 0.4 + n * 0.4,0.4 + n * 0.4) fillcolor (n, n * 0.8) N * 0.8) begin_fill () circle (2) left (90) end_fill () pu () # returns t = heading () setheading (an) backward (dis) Setheading (t) # pass pu () backward (l) # return def main (): tree = Tree () tree.tree (12 ) # Recursive layer 7 done () if _ _ name__ = ='_ main__': main ()

Falling red is not a heartless thing, it turns into spring mud to protect flowers.

# coding=gbk from turtle import * from random import * # Tree drawing method def drawTree (n, l): pendown () pencolor ('# 5d3c3c') pensize (n / 1.5) forward (l) if n > 0: dr = randint (30,40) dl = randint (30,40) move = l * (random () * 0.4 + 0.5) right (dr) drawTree (n-1) Move) left (dr + dl) drawTree (n-1, move) right (dl) else: drawPetal (3) penup () backward (l) # petal position generates def petalPlace (m, x, y): penup () goto (x Y) pendown () setheading (0) tracer (False) for i in range (m): if I = 0: drawPetal (5) else: penup () goto (x, y) a = randint (20400) b = randint (- 50) 50) forward (a) left (90) forward (b) right (90) pendown () drawPetal (5) # Flower painting method def drawPetal (n): colormode (255r = randint (200,255) g = randint (8158) b = randint (8158) begin_fill () fillcolor (r, g) B) pencolor (r, g, b) circle (n) end_fill () # launch method def run (): setup (1.0,1.0) penup () goto (- 50,150) left (90) pendown () hideturtle () tracer (False) drawTree (13,150) petalPlace (160,100,150) run () done ()

The autumn color of Kawahara is quiet, and the Reed is blowing in the evening.

Import turtle import randomstack = [] def createWord (max_it, word, proc_rules, x, y, turn): turtle.up () turtle.home () turtle.goto (x, y) turtle.right (turn) turtle.down () t = 0 while t < max_it: word = rewrite (word, proc_rules) drawit (word, 5,20) tt = T1 def rewrite (word) Proc_rules): wordList = list (word) for i in range (len (wordList)): curChar = wordList [I] if curChar in proc_rules: wordList [I] = proc_ rules [curChar] return ".join (wordList) def drawit (newWord, d) Angle): newWordLs = list (newWord) for i in range (len (newWordLs)): cur_Char = newWordLs [I] if cur_Char = = 'fit: turtle.forward (d) elif cur_Char = =' +': turtle.right (angle) elif cur_Char = ='-': turtle.left (angle) elif cur_Char = = '[': state_push () elif cur_Char = =']': state_pop () def state_push (): global stack stack.append ((turtle.position ()) Turtle.heading ()) def state_pop (): global stack position, heading = stack.pop () turtle.up () turtle.goto (position) turtle.setheading (heading) turtle.down () def randomStart (): X = random.randint (- 300,300) y = random.randint (- 320,280) heading = random.randint (- 100,80) return ((x, y) Heading) def main (): rule_sets = [] rule_sets.append (3, 5), 'Fang, {' Fang, {'F] [- F] F'})) rule_sets.append (4, 6), 'Bang, {''B] [+ B]','FF'})) rule_sets.append (2, 4),'F') Tree_count = 50 turtle.tracer (10,0) for x in range (tree_count): rand_i = random.randint (0, len (rule_sets)-1) selected_ruleset = rule_ sets [rand _ I] i_range, word, rule = selected_ruleset low, high = i_range I = random.randint (low) High) start_position, start_heading = randomStart () start_x, start_y = start_position createWord (I, word, rule, start_x, start_y, start_heading) if _ _ name__ = ='_ main__': main () so far I believe you have a deeper understanding of "how to use Python to achieve magical tree effect". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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