WIN32 program to activate the window of the previous startup program during startup

2022-12-31   ES  


TURTLE library is a very popular function library in Python language.

Imagine a small turtle, which starts with a coordinate system with X and vertical axis as X, and (0,0). It moves according to the control of a set of function instructions to move in this plane coordinate system, so as to be in it in this plane coordinate system, thereby Draw a graphic on the path of crawling

Next, we will use the TURTLE function to draw several cherry trees:

Description: The code uses a random function, so each execution process is not only dynamic, but also the results are different.

1. Dynamic generate cherry blossoms

result display: (This is dynamic, you will not do GIF, you can only show the result)

code is as follows:

Left branch deflection angle 
         d = l*(random ()*0.25+0.7) #The length of the next branch 
         #Right to a certain angle, draw the right branch 
         Right (b) 
         Tree (n-1, d) 
         #Left to a certain angle, draw the left branch 
         left (B+C) 
         Tree (n-1, d) 
         #Turn back 
         Right (C) 
         # #画 画 
         Right (90) 
         n = cos (radians (heading () -4))/4+0.5 
         Pencolor (n, n*0.8, n*0.8) 
         circle (3) 
         left (90) 
         #Add 0.3 times falling leaves 
         if (random ()> 0.7): 
             pu () 
             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) 
             # #画 画 
             pd () 
             Right (90) 
             n = cos (radians (heading () -4))/4+0.5 
             Pencolor (n*0.5+0.5,0.4+n*0.4,0.4+n*0.4) 
             circle (2) 
             left (90) 
             pu () 
             t = Heading () 
             setheading (an) 
             backward (dis) 
             setheading (t) 
     pu () 
     backward (L)#Return 
 BGCOLOR (0.5, 0.5,0.5)#background color 
 ht ()#Hide tultle 
 Speed (0)#speed 1-10 gradual, 0 fastest 
 tracer (0,0) 
 pu ()#p 
 backward (100) 
 left (90)#to 90 degrees left to 90 degrees 
 pu ()#p 
 backward (300)#back 300 
 Tree (12,100)#recursively 7 floors 
 Done (Done ()

2, fall effect cherry blossom

result display:

code is as follows:

From TURTLE Import * 
 From Random Import * 
 From Math Import * 
 DEF TREE (n, L): 
     pd ()#lower pen 
     #Shadow effect 
     T = COS (Radians (Heading ()+45))/8+0.25 
     Pencolor (t, t, t) 
     Pensize (n/3) 
     forward (l)#Draw branches 
     if n> 0: 
         B = Random ()*15+

3, dark effect cherry blossoms

result display:

code is as follows:

from turtle import *
from random import *
from math import *
def tree(n, l):
    t = cos(radians(heading() + 45)) / 8 + 0.25
    pencolor(t, t, t)
    pensize(n / 4)
    if n > 0:
        b = random() * 15 + 10
        c = random() * 15 + 10
        d = l * (random() * 0.35 + 0.6)
        tree(n - 1, d)
        left(b + c)
        tree(n - 1, d)
        n = cos(radians(heading() - 45)) / 4 + 0.5
        pencolor(n, n, n)
bgcolor(0.5, 0.5, 0.5)
tracer(0, 0)
tree(13, 100)

I amGardeniall, your likes, comments, and attention are the unremitting motivation I continue to create.
Learning is endless, and the qi is vast. Let us cheer together. Intersection


Related Posts

Commonjs/ES6/AMD module

View constraints, add constraints, delete the constraints added columns, modify columns, delete columns

html drop -down menu box small triangle can’t find what to do

[SpringCloud] Fenchley & Greenwich skeleton construction (1)

WIN32 program to activate the window of the previous startup program during startup

Random Posts

python2 console shows garbled and saved file garbled Gu Ying

ESD electrostatic protection diode silk print query, SOD-323 packaging model

ubuntu18.04 Install Fast-DDS-PYTHON and use case reference

Uniapp subtitles 3 seconds automatically broadcast downward (dynamic subtitles, news announcement) DYC

Android animation Frameanimation (frame animation) AnimationDrawable