利用python/R语言绘制圣诞树实例代码

目录

• Python
• R语言
• 总结

圣诞节快到了，想着用python、r来画画圣诞树玩，就在网络上各种找方法，不喜勿喷哈~~

Python

1、

import turtle
 
screen = turtle.Screen()
screen.setup(800,600)
 
circle = turtle.Turtle()
circle.shape('circle')
circle.color('red')
circle.speed('fastest')
circle.up()
 
square = turtle.Turtle()
square.shape('square')
square.color('green')
square.speed('fastest')
square.up()
 
circle.goto(0,280)
circle.stamp()
 
k = 0
for i in range(1, 17):
    y = 30*i
    for j in range(i-k):
        x = 30*j
        square.goto(x,-y+280)
        square.stamp()
        square.goto(-x,-y+280)
        square.stamp()
 
    if i % 4 == 0:
        x =  30*(j+1)
        circle.color('red')
        circle.goto(-x,-y+280)
        circle.stamp()
        circle.goto(x,-y+280)
        circle.stamp()        
        k += 2
 
    if i % 4 == 3:
        x =  30*(j+1)
        circle.color('yellow')
        circle.goto(-x,-y+280)
        circle.stamp()
        circle.goto(x,-y+280)
        circle.stamp() 
 
square.color('brown')
for i in range(17,20):
    y = 30*i
    for j in range(3):    
        x = 30*j
        square.goto(x,-y+280)
        square.stamp()
        square.goto(-x,-y+280)
        square.stamp()        
        
turtle.exitonclick()

2、

import random
height = 11
for i in range(height):
    print(' ' * (height - i), end='')
    for j in range((2 * i) + 1):
        if random.random() < 0.1:
            color = random.choice(['\033[1;31m', '\033[33m', '\033[1;34m'])
            print(color, end='')  #  the lights 
        else:
            print('\033[32m', end='')  #  green 
        print('*', end='')
    print()
print((' ' * height) + '|')

3、

n = 50
from turtle import *
speed("fastest")  #没有这一行，会very very慢
left(90)
forward(3*n)
color("orange", "yellow")
begin_fill()
left(126)
for i in range(5):
    forward(n/5)
    right(144)
    forward(n/5)
    left(72)
end_fill()
right(126)
color("dark green")
backward(n*4.8)
def tree(d, s):
    if d <= 0: return
    forward(s)
    tree(d-1, s*.8)
    right(120)
    tree(d-3, s*.5)
    right(120)
    tree(d-3, s*.5)
    right(120)
    backward(s)
tree(15, n)
backward(n/2)

 

4、

def paintleaves(m):
    for i in range(m):
        if(i == 10):
            print( ' '*(m-i) + '*'*( 2*i + 1-len( 'happy Christmas')) + 'happy Christmas'+ ' '*(m-i))
            continue
        if(i == 20):
            print( ' '*(m-i) + '*'*( 2*i + 1-len( 'I Love You')) +'I Love You'+ ' '*(m-i))
            continue
        if(i == m-1):
            print( ' '*(m-i) + 'liang yu'+ '*'*( 2*i + 1-len( 'liang yu')) + ' '*(m-i))
            continue   
        print(' '*(m-i) + '*'*(2*i + 1) + ' '*(m-i))   
def paintTrunk(n):
    for j in range (8 ):
        print(' '*(n - 5) + '*'*10 + ' '*(n - 5))
paintleaves(25)
paintTrunk(25)

 

5、

#!/usr/bin/env python
# coding:utf-8
import os
import sys
import platform
import random
import time
 
 
class UI(object):
    def __init__(self):
        os_name = platform.uname()[0]
        self.IS_WIN = os_name == 'Windows'
        self.IS_MAC = os_name == 'Darwin'
        print(os_name)
        if self.IS_WIN:
            self.RED = 0x0C
            self.GREY = 0x07
            self.BLUE = 0x09
            self.CYAN = 0x0B
            self.LINK = 0x30
            self.BLACK = 0x0
            self.GREEN = 0x0A
            self.WHITE = 0x0F
            self.PURPLE = 0x0D
            self.YELLOW = 0x0E
        else:
            self.RED = '\033[1;31m'
            self.GREY = '\033[38m'
            self.BLUE = '\033[1;34m'
            self.CYAN = '\033[36m'
            self.LINK = '\033[0;36;4m'
            self.BLACK = '\033[0m'
            self.GREEN = '\033[32m'
            self.WHITE = '\033[37m'
            self.PURPLE = '\033[35m'
            self.YELLOW = '\033[33m'
        self.p = self.win_print if self.IS_WIN else self.os_print
 
    def clear(self):
        os.system('cls' if self.IS_WIN else 'clear')
        return self
 
    def win_reset(self, color):
        from ctypes import windll
        handler = windll.kernel32.GetStdHandle(-11)
        return windll.kernel32.SetConsoleTextAttribute(handler, color)
 
    def win_print(self, msg, color, enter=True):
        color = color or self.BLACK
        self.win_reset(color | color | color)
        sys.stdout.write(('%s\n' if enter else '%s') % msg)
        self.win_reset(self.RED | self.GREEN | self.BLUE)
        return self
 
    def os_print(self, msg, color, enter=True):
        color = color or self.BLACK
        sys.stdout.write(
            ('%s%s%s\n' if enter else '%s%s%s') % (color, msg, self.BLACK))
        return self
 
 
def tree(ui, level=3):
    a = range(0, (level + 1) * 4, 2)
    b = list(a[0:2])
    print(b)
    for i in range(2, len(a) - 2, 2):
        b.append(a[i])
        b.append(a[i + 1])
        b.append(a[i])
        b.append(a[i + 1])
    b.append(a[-2])
    b.append(a[-1])
    light = True
    while True:
        ui.clear()
        ui.p(u'\t圣诞节快乐!\n\t\t\tLiang Yu.Shi 2021', ui.RED)
        print
        light = not light
        lamp(ui, b, light)
        for i in range(2, len(b)):
            ui.p(
                '%s/' % (' ' * b[len(b) - i - 1]), ui.GREEN, enter=False)
            neon(ui, 2 * b[i] + 1)
            ui.p('\\', ui.GREEN, enter=True)
        time.sleep(1.2)
 
 
def neon(ui, space_len):
    colors = [ui.RED, ui.GREY, ui.BLUE, ui.CYAN, ui.YELLOW]
    for i in range(space_len):
        if random.randint(0, 16) == 5:
            ui.p('o', colors[random.randint(0, len(colors) - 1)], enter=False)
        else:
            ui.p(' ', ui.RED, enter=False)
 
 
def lamp(ui, tree_arr, light):
    colors = [ui.WHITE, ui.BLUE]
    if not light:
        colors.reverse()
    ui.p(' ' * (tree_arr[-1] + 1), ui.BLACK, enter=False)
    ui.p('|', colors[1])
    ui.p(' ' * tree_arr[-1], ui.BLACK, enter=False)
    ui.p('\\', colors[1], enter=False)
    ui.p('|', colors[0], enter=False)
    ui.p('/', colors[1])
    ui.p(' ' * tree_arr[-2], ui.BLACK, enter=False)
    ui.p('-', colors[0], enter=False)
    ui.p('-', colors[1], enter=False)
    ui.p('=', colors[0], enter=False)
    ui.p('O', colors[1], enter=False)
    ui.p('=', colors[0], enter=False)
    ui.p('-', colors[1], enter=False)
    ui.p('-', colors[0], enter=True)
 
    ui.p(' ' * tree_arr[-1], ui.BLACK, enter=False)
    ui.p('/', colors[1], enter=False)
    ui.p('|', colors[0], enter=False)
    ui.p('\\', colors[1])
    ui.p(' ' * tree_arr[-2], ui.BLACK, enter=False)
    ui.p('/  ', ui.GREEN, enter=False)
    ui.p('|', colors[1], enter=False)
    ui.p('  \\', ui.GREEN, enter=True)
 
 
def main():
    ui = UI()
    max_rows = 4
    tree(ui, max_rows)
 
 
main()

 

这个在使用python运行的时候，要用Python2，python3的话，颜色是不会变的。 嗯，最起码我是这样的。

6、

import argparse
import os
import random
import time
 
BALL = '⏺'
COLOR = {
    'blue': '\033[94m',
    'yellow': '\033[93m',
    'cyan': '\033[96m',
    'green': '\033[92m',
    'magenta': '\033[95m',
    'white': '\033[97m',
    'red': '\033[91m'
}
STAR = '★'
 
 
def random_change_char(string, value):
    indexes = random.sample(range(0, len(string)), value)
    string = list(string)
    for idx in indexes:
        if string[idx] != ' ' and string[idx] == '_':
            string[idx] = BALL
    return ''.join(string)
 
 
def tree(height=13, screen_width=80):
    star = (STAR, 3*STAR)
    if height % 2 != 0:
        height += 1
    body = ['/_\\', '/_\_\\']
    trunk = '[___]'
    begin = '/'
    end = '\\'
    pattern = '_/'
    j = 5
    for i in range(7, height + 1, 2):
        middle = pattern + (i - j) * pattern
        line = ''.join([begin, middle[:-1], end])
        body.append(line)
        middle = middle.replace('/', '\\')
        line = ''.join([begin, middle[:-1], end])
        body.append(line)
        j += 1
 
    return [line.center(screen_width) for line in (*star, *body, trunk)]
 
 
def balls(tree):
    for idx, _ in enumerate(tree[:-3], 2):
        tree[idx] = random_change_char(tree[idx], len(tree[idx])//8)
    return tree
 
 
def colored_stars_balls(tree):
    for idx, _ in enumerate(tree):
        string = list(tree[idx])
        for pos, _ in enumerate(string):
            if string[pos] == STAR:
                string[pos] = ''.join([COLOR['yellow'], STAR, '\033[0m'])
            elif string[pos] == BALL:
                string[pos] = ''.join([random.choice(list(COLOR.values())), BALL, '\033[0m'])
        tree[idx] = ''.join(string)
    return tree
 
 
def cli():
    parser = argparse.ArgumentParser(prog="Python Christmas Tree by Chico Lucio from Ciencia Programada",
                                     epilog="Ctrl-C interrupts the Christmas :-(")
    parser.add_argument('-s', '--size', default=13, type=int,
                        help="Tree height. If even it will be subtracted 1. If less than 7, considered 5. Default: 13")
    parser.add_argument('-w', '--width', default=80, type=int,
                        help="Screen width. Used to center the tree. Default: 80")
    parser.add_argument('-t', '--terminal', action='store_true',
                        help="Uses the terminal size to center the tree. -s and -w will be ignored")
    args = parser.parse_args()
 
    if args.terminal:
        screen_width, height = os.get_terminal_size()
        height -= 2
    else:
        height = args.size
        screen_width = args.width
    while True:
        try:
            time.sleep(random.uniform(.1, 1))
            os.system('cls' if os.name == 'nt' else 'clear')
            print('\n'.join(colored_stars_balls(balls(tree(height, screen_width)))))
        except KeyboardInterrupt:
            os.system('cls' if os.name == 'nt' else 'clear')
            print(f"\n{'Merry Christmas!!':^{screen_width}}", end='\n\n')
            break
 
 
if __name__ == '__main__':
    cli()

来源：A simple terminal Christmas tree made with Python | PythonRepo

---

update:2021-12-23

import math
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure(figsize=(8,8))
ax = fig.add_subplot(111, projection="3d")
def init():
    k=300
    Z = [i for i in range(k)]
    X = [math.cos(i/5)*(k-i) for i in range(k)]
    Y = [math.sin(i/5)*(k-i) for i in range(k)]
    ax.scatter(X,Y,Z, c="green", marker="^")
    step = 3
    c = [(i/k,abs(0.5-i/k),i/k) for i in range(1,k,step)]
    Z = [i for i in range(1,k,step)]
    X = [math.cos(i/5+2)*(k-i+10) for i in range(1,k,step)]
    Y = [math.sin(i/5+2)*(k-i+10) for i in range(1,k,step)]
    ax.scatter(X,Y,Z, c=c, marker="o",s=40)
    plt.xlim(-500,500)
    plt.ylim(-500,500)
    return fig,
def animate(f):
    fig.clear()
    ax = fig.add_subplot(111, projection="3d")
    k=300
    Z = [i for i in range(k)]
    X = [math.cos(i/5+f/10)*(k-i) for i in range(k)]
    Y = [math.sin(i/5+f/10)*(k-i) for i in range(k)]
    ax.scatter(X,Y,Z, c="green", marker="^")
    step = 3
    c = [(i/k,abs(0.5-i/k),i/k) for i in range(1,k,step)]
    Z = [i for i in range(1,k,step)]
    X = [math.cos(i/5+2+f/10)*(k-i+10) for i in range(1,k,step)]
    Y = [math.sin(i/5+2+f/10)*(k-i+10) for i in range(1,k,step)]
    ax.scatter(X,Y,Z, c=c, marker="o",s=40)
    plt.xlim(-500,500)
    plt.ylim(-500,500)
    return fig,
ani=animation.FuncAnimation(fig, animate, init_func=init,
                               frames=90, interval=50, blit=True)
ani.save("christmas_tree.mp4")

来源：https://medium.com/analytics-vidhya/how-to-draw-a-3d-christmas-tree-with-matplotlib-aabb9bc27864

R语言

1、

L <-  matrix(c(0.03,0,0,0.1,0.85,0.00,0.00,0.85,0.8,0.00,0.00,0.8,0.2,-0.08,0.15, 0.22, -0.2,0.08,0.15, 0.22,0.25, -0.1,0.12, 0.25,-0.2,0.1,0.12, 0.2),nrow=4)  
B <- matrix(c(0,0,0,1.5,0,1.5,0,0.85,0,0.85,0,0.3,0, 0.4),nrow=2) 
prob = c(0.02, 0.6,.08, 0.07, 0.07, 0.07, 0.07) 
N = 1e5 
x = matrix(NA,nrow=2,ncol=N)
x[,1] = c(0,2)   
k <- sample(1:7,N,prob,replace=TRUE) 
for(i in 2:N)
{  
 x[,i] = crossprod(matrix(L[,k[i]],nrow=2),x[,i-1]) + B[,k[i]]
}
par(bg='black',mar=rep(0,4))    
plot(x=x[1,],y=x[2,],col=grep('green',colors(),value=TRUE),axes=FALSE,cex=.1, xlab='', ylab='',pch='.')
bals <- sample(N,20) 
points(x=x[1,bals],y=x[2,bals]-.1,col=c('red','blue','yellow','orange'),cex=1.5,pch=19) 
text(x=-.7,y=8, labels='liangYuShi', adj=c(.5,.5), srt=35,
vfont=c('script','plain'),cex=3,col='gold' ) 
text(x=0.7,y=8,labels='Merry Christmas',adj=c(.5,.5),srt=-35,
vfont=c('script','plain'),cex=3, col='gold' ) 
 
text(x=-0.6,y=0,cex=0.8,labels="By Jimmy Wu", col="white")

2、

par(bg='black',mar=rep(0,4))
plot(1:10,1:10,xlim=c(-5,5),ylim=c(0,10),type="n",xlab="",ylab="",xaxt="n",yaxt="n")
rect(-1,0,1,2,col="tan3",border="tan4",lwd=3)
polygon(c(-5,0,5),c(2,4,2),col="palegreen3",border="palegreen4",lwd=3)
polygon(c(-4,0,4),c(3.5,5.5,3.5),col="palegreen4",border="palegreen3",lwd=3)
polygon(c(-3,0,3),c(5,6.5,5),col="palegreen3",border="palegreen4",lwd=3)
polygon(c(-2,0,2),c(6.25,7.5,6.25),col="palegreen4",border="palegreen3",lwd=3)
points(x=runif(4,-5,5),y=rep(2,4),col=sample(c("blue","red"),size=4,replace=T),cex=3,pch=19)
points(x=runif(4,-4,4),y=rep(3.5,4),col=sample(c("blue","red"),size=4,replace=T),cex=3,pch=19)
points(x=runif(4,-3,3),y=rep(5,4),col=sample(c("blue","red"),size=4,replace=T),cex=3,pch=19)
points(x=runif(4,-2,2),y=rep(6.25,4),col=sample(c("blue","red"),size=4,replace=T),cex=3,pch=19)
points(0,7.5,pch=8,cex=5,col="gold",lwd=3)
xPres = runif(10,-4.5,4.5)
xWidth = runif(10,0.1,0.5)
xHeight=runif(10,0,1)
for(i in 1:10){
  rect(xPres[i]-xWidth[i],0,xPres[i]+xWidth[i],xHeight[i],col=sample(c("blue","red"),size=1))
  rect(xPres[i]-0.2*xWidth[i],0,xPres[i]+0.2*xWidth[i],xHeight[i],col=sample(c("gold","grey87"),size=1))
}

 

后面再找到好玩的，好看的，会更新在这里~

总结

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