浪漫至死不渝，程式員的浪漫——python繪圖

python也可以浪漫，放圖~

代碼來咯，灰色粉色櫻花，動态飄落花瓣的櫻花都有~

#灰色櫻花#

#PythonDraw.py
import turtle
turtle.setup(650,350,200,200)
turtle.pensize(200)
turtle.pencolor('yellow')
turtle.penup()
turtle.goto(-100,-50)
turtle.pendown()
turtle.circle(50,360)


turtle.pencolor('white')
turtle.pensize(25)
turtle.penup()
turtle.left(45)
turtle.goto(-190,45)
turtle.pendown()
turtle.circle(-40,90)

turtle.pencolor('black')
turtle.pensize(10)
turtle.penup()
turtle.left(90)
turtle.goto(-200,50)
turtle.pendown()
turtle.circle(-50,90)
turtle.circle(-12,180)
turtle.circle(30,90)
turtle.circle(-12,180)
turtle.pensize(20)
turtle.penup()
turtle.goto(-195,40)
turtle.pendown()
turtle.circle(5,360)

turtle.pencolor('white')
turtle.pensize(25)
turtle.penup()
turtle.goto(-70,45)
turtle.pendown()
turtle.circle(-40,90)

turtle.pencolor('black')
turtle.pensize(10)
turtle.penup()
turtle.left(90)
turtle.goto(-70,50)
turtle.pendown()
turtle.circle(-50,90)
turtle.circle(-12,180)
turtle.circle(30,90)
turtle.circle(-12,180)
turtle.pensize(20)
turtle.penup()
turtle.goto(-65,40)
turtle.pendown()
turtle.circle(5,360)

turtle.pensize(10)
turtle.penup()
turtle.goto(-60,-30)
turtle.pendown()
turtle.left(225)
turtle.circle(-40,180)
turtle.done()
           

#粉色櫻花#

from turtle import *
from random import *
from math import *

def tree(n,l):
    pd()#下筆
    #陰影效果
    t = cos(radians(heading()+45))/8+0.25
    pencolor(t,t,t)
    pensize(n/3)
    forward(l)#畫樹枝

    if n>0:
        b = random()*15+10 #右分支偏轉角度
        c = random()*15+10 #左分支偏轉角度
        d = l*(random()*0.25+0.7) #下一個分支的長度
        #右轉一定角度,畫右分支
        right(b)
        tree(n-1,d)
        #左轉一定角度，畫左分支
        left(b+c)
        tree(n-1,d)
        #轉回來
        right(c)
    else:
        #畫葉子
        right(90)
        n=cos(radians(heading()-45))/4+0.5
        pencolor(n,n*0.8,n*0.8)
        circle(3)
        left(90)
        #添加0.3倍的飄落葉子
        if(random()>0.7):
            pu()
            #飄落
            t = heading()
            an = -40 +random()*40
            setheading(an)
            dis = int(800*random()*0.5 + 400*random()*0.3 + 200*random()*0.2)
            forward(dis)
            setheading(t)
            #畫葉子
            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)
            circle(2)
            left(90)
            pu()
            #傳回
            t=heading()
            setheading(an)
            backward(dis)
            setheading(t)
    pu()
    backward(l)#退回

bgcolor(0.5,0.5,0.5)#背景色
ht()#隐藏turtle
speed(0)#速度 1-10漸進，0 最快
tracer(0,0)
pu()#擡筆
backward(100)
left(90)#左轉90度
pu()#擡筆
backward(300)#後退300
tree(12,100)#遞歸7層
done()
           

#動态櫻花#

import turtle as T

import random

import time

 

# 畫櫻花的軀幹(60,t)

def Tree(branch, t):

    time.sleep(0.0005)

    if branch > 3:

        if 8 <= branch <= 12:

            if random.randint(0, 2) == 0:

                t.color('snow')  # 白

            else:

                t.color('lightcoral')  # 淡珊瑚色

            t.pensize(branch / 3)

        elif branch < 8:

            if random.randint(0, 1) == 0:

                t.color('snow')

            else:

                t.color('lightcoral')  # 淡珊瑚色

            t.pensize(branch / 2)

        else:

            t.color('sienna')  # 赭(zhě)色

            t.pensize(branch / 10)  # 6

        t.forward(branch)

        a = 1.5 * random.random()

        t.right(20 * a)

        b = 1.5 * random.random()

        Tree(branch - 10 * b, t)

        t.left(40 * a)

        Tree(branch - 10 * b, t)

        t.right(20 * a)

        t.up()

        t.backward(branch)

        t.down()

 

# 掉落的花瓣

def Petal(m, t):

    for i in range(m):

        a = 200 - 400 * random.random()

        b = 10 - 20 * random.random()

        t.up()

        t.forward(b)

        t.left(90)

        t.forward(a)

        t.down()

        t.color('lightcoral')  # 淡珊瑚色

        t.circle(1)

        t.up()

        t.backward(a)

        t.right(90)

        t.backward(b)

 

# 繪圖區域

t = T.Turtle()

# 畫布大小

w = T.Screen()

t.hideturtle()  # 隐藏畫筆

t.getscreen().tracer(5, 0)

w.screensize(bg='wheat')  # wheat小麥

t.left(90)

t.up()

t.backward(150)

t.down()

t.color('sienna')

 

# 畫櫻花的軀幹

Tree(60, t)

# 掉落的花瓣

Petal(200, t)

w.exitonclick()