def pic(root, visit, posi: bool, t: tt.Turtle, angle, length):
if root.get('value', None) is not None:
draw(root, t, posi, angle, length)
pic(root['leftChild'], visit, RIGHT, t.clone(), angle - 10,
length - 10)
pic(root['rightChild'], visit, LEFT, t.clone(), angle - 10,
length - 10)
def make_field():
global bars
bar = Turtle()
bar.penup()
for i in range(2, 6):
bar.shape(f"gif/v{i}.gif")
for j in range(1, 11):
bar.setpos(-400 + (j * 70), -100 + (i * 80))
a = bar.clone()
bars.append(a)
bar.stamp()
j += 1
bars.append(bar)
def start(n):
plist = []
angle = 0
p = Turtle()
p.hideturtle()
p.getscreen().tracer(30, 0)
p.setundobuffer(None)
plist.append(p)
for i in range(n):
q = p.clone()
q.right(angle)
plist.append(q)
angle += (360 / n)
star(plist)
def generate_stars():
t = Turtle(visible=False, shape='circle')
t.pencolor("white")
t.fillcolor("white")
t.penup()
t.setheading(-90)
t.goto(width / 2, randint(-height / 2, height / 2))
stars = []
colors = ['yellow', 'white', 'pink']
for _ in range(125):
star = t.clone()
s = random() / 3
star.shapesize(s, s)
star.speed(int(s * 8))
star.setx(width / 2 + randint(1, width))
star.sety(randint(-height / 2, height / 2))
star.color(colors[randint(0, 2)], colors[randint(0, 2)])
star.begin_fill()
star.showturtle()
star.end_fill()
stars.append(star)
return stars
class Plotter:
COLORS = ["red", "green", "blue", "magenta", "orange", "cyan"]
def __init__(self, size, pos, ranges, graphs, step):
self.width = size[0] - 30
self.height = size[1] - 30
self.min = ranges[0]
self.max = ranges[1]
self.x = pos[0] + 30
self.y = pos[1]
self.graphs = graphs
self.pens = []
self.i = self.width
self.step = step
self.lastTime = -1
for i in range(graphs):
pen = Turtle()
pen.up()
pen.speed(0)
pen.color(self.COLORS[i])
pen.width(1)
pen.hideturtle()
self.pens.append(pen)
guiPen = Turtle()
guiPen.up()
guiPen.getscreen().tracer(0, 0)
guiPen.hideturtle()
guiPen.speed(0)
guiPen.color("black")
guiPen.setpos(self.x, self.y)
guiPen.down()
guiPen.setpos(self.x + self.width, self.y)
guiPen.setpos(self.x + self.width, self.y + self.height)
guiPen.setpos(self.x, self.y + self.height)
guiPen.setpos(self.x, self.y)
guiPen.up()
for i in range(int(self.width / 2)):
guiPen.setpos(self.x + i * 2 + 1, self.y + self.height / 2)
guiPen.dot(2)
for i in range(int(self.width / 4)):
guiPen.setpos(self.x + i * 4 + 2, self.y + self.height * 0.75)
guiPen.dot(2)
for i in range(int(self.width / 4)):
guiPen.setpos(self.x + i * 4 + 2, self.y + self.height * 0.25)
guiPen.dot(2)
for i in range(5):
guiPen.setpos(self.x - 2, self.y + self.height * i / 4 - 7)
guiPen.write(str((self.max - self.min) * i / 4 + self.min),
align="right")
guiPen.getscreen().tracer(1, 0)
self.numPen = Turtle()
self.numPen.up()
self.numPen.hideturtle()
self.numPen.speed(0)
self.numPen = [self.numPen, self.numPen.clone()]
def plot(self, data):
sets = min(len(data), self.graphs)
self.i = self.i + int(self.step *
(time.time() * 1000 - self.lastTime) / 50)
self.lastTime = time.time() * 1000
if (self.i > self.width): # reset
self.i = 0
for i in range(sets):
self.pens[i].clear()
self.pens[i].up()
self.pens[i].setpos(self.getCoordinates(data[i]))
self.pens[i].down()
for i in range(sets):
self.pens[i].setpos(self.getCoordinates(data[i]))
numPen = self.numPen[int(self.i / self.step % 2)]
numPen.setpos(self.x + self.width,
self.y + self.height - i * 20 - 20)
numPen.color(self.COLORS[i])
numPen.write(int(data[i]), align="right")
self.numPen[int(self.i / self.step + 1) %
2].clear() # fancy double buffering
def getCoordinates(self, value):
return (self.i + self.x, (0.0 + value - self.min) /
(self.max - self.min) * self.height + self.y)
class Plotter2D:
COLORS = ["red", "green", "blue", "magenta", "orange", "cyan"]
def __init__(self, size, pos, ranges, graphs, step):
self.width = size[0] - 10
self.height = size[1] - 10
self.min = ranges[0]
self.max = ranges[1]
self.x = pos[0]
self.y = pos[1]
self.graphs = graphs
self.pens = []
self.i = self.width
self.step = step
self.lastTime = -1
for i in range(graphs):
pen = Turtle()
pen.up()
pen.speed(0)
pen.color(self.COLORS[i])
pen.width(1)
pen.hideturtle()
self.pens.append(pen)
guiPen = Turtle()
guiPen.up()
guiPen.getscreen().tracer(0, 0)
guiPen.hideturtle()
guiPen.speed(0)
guiPen.color("black")
guiPen.setpos(self.x, self.y)
guiPen.down()
guiPen.setpos(self.x - self.width / 2, self.y)
guiPen.setpos(self.x + self.width / 2 + 10, self.y)
guiPen.setpos(self.x + self.width / 2 + 5, self.y - 5)
guiPen.setpos(self.x + self.width / 2 + 10, self.y)
guiPen.setpos(self.x + self.width / 2 + 5, self.y + 5)
guiPen.up()
guiPen.setpos(self.x, self.y - self.height / 2)
guiPen.down()
guiPen.setpos(self.x, self.y + 10 + self.height / 2)
guiPen.setpos(self.x + 5, self.y + 5 + self.height / 2)
guiPen.setpos(self.x, self.y + 10 + self.height / 2)
guiPen.setpos(self.x - 5, self.y + 5 + self.height / 2)
guiPen.up()
for i in range(5):
guiPen.setpos(self.x - self.width / 2 + i / 4 * self.width,
self.y - 5)
guiPen.down()
guiPen.setpos(self.x - self.width / 2 + i / 4 * self.width,
self.y + 5)
guiPen.up()
guiPen.write(str((self.max - self.min) * i / 4 + self.min),
align="center")
guiPen.setpos(self.x - 5,
self.y - self.height / 2 + i / 4 * self.height)
guiPen.down()
guiPen.setpos(self.x + 5,
self.y - self.height / 2 + i / 4 * self.height)
guiPen.up()
guiPen.setpos(self.x + 10,
self.y - self.height / 2 + i / 4 * self.height - 7)
guiPen.write(str((self.max - self.min) * i / 4 + self.min),
align="left")
guiPen.getscreen().tracer(1, 0)
self.numPen = Turtle()
self.numPen.up()
self.numPen.hideturtle()
self.numPen.speed(0)
self.numPen = [self.numPen, self.numPen.clone()]
def clear(self):
self.i = 0
for i in range(len(self.pens)):
self.pens[i].clear()
def plot(self, data):
sets = min(len(data), self.graphs)
self.i = self.i + int(self.step *
(time.time() * 1000 - self.lastTime) / 50)
self.lastTime = time.time() * 1000
for i in range(sets):
self.pens[i].setpos(self.getCoordinates(data[i][0], data[i][1]))
self.pens[i].dot(3)
# numPen = self.numPen[self.i/self.step % 2]
# numPen.setpos(self.x + self.width, self.y +
# self.height - i * 20-20)
# numPen.color(self.COLORS[i])
# numPen.write(str(data[i]), align="right")
# self.numPen[(self.i/self.step + 1) %
# 2].clear() # fancy double buffering
def getCoordinates(self, valuex, valuey):
return ((0.0 + valuex - self.min) /
(self.max - self.min) * self.width - 0.5 * self.width + self.x,
(0.0 + valuey - self.min) /
(self.max - self.min) * self.height + self.y -
0.5 * self.height)
screen.register_shape(shape, p)
t.penup()
t.sety(len(turtles)*gap)
t.shape(shape)
turtles.append(t)
import os
file_path = os.path.realpath(__file__)
dir_path = os.path.dirname(file_path)
shape = os.path.join(dir_path, 'b.gif')
screen.register_shape(shape)
t = Turtle()
t.penup()
t.sety(len(turtles)*gap)
t.shape(shape)
turtles.append(t)
new_turtles = []
for turtle in turtles:
new_turtle = turtle.clone()
new_turtle.setx(step)
new_turtle.pendown()
new_turtle.stamp()
new_turtle.forward(step*2)
new_turtle.shapesize(2, 2, 2)
new_turtle.stamp()
new_turtle.forward(step*2)
new_turtle.shearfactor(1)
screen.exitonclick()
def save_turtle(cls, turtle: Turtle):
clone: Turtle = turtle.clone()
clone.speed("fastest")
clone.hideturtle()
yield clone
from random import randint, choice
from turtle import Turtle, Screen
import time
screen = Screen()
screen.tracer(0)
width, height = screen.window_width() - 30, screen.window_height(
) - 30 # -30 to account for window borders, etc.
maker1 = Turtle(visible=False)
maker2 = maker1.clone()
maker3 = maker1.clone()
maker4 = maker1.clone()
maker1.goto(50, 50) # top right
maker2.goto(50, -50) # bottom right
maker3.goto(-50, -50) # bottom left
maker4.goto(-50, 50) # top left
n = randint(1, 360)
m = randint(0, 100)
r = randint(0, 50)
d = choice([True, False])
def out_of_bounds(turtle):
return not (-width // 2 < turtle.xcor() < width // 2
and -height // 2 < turtle.ycor() < height // 2)
"""
第15题答案的python演示代码：
导入turtle模块
你只要知道turtle是python的一个图形界面库（工具箱），
方便你在电脑屏幕上生成一个图形化的程序界面。
"""
from turtle import Screen, Turtle
screen = Screen()
# screen.addshape("./t.gif")
t = Turtle()
# t.shape("./t.gif")
x, y = 0, 0
for i in range(4):
for j in range(3):
t = t.clone()
y -= 100
t.sety(y)
x += 100
y = 0
t.setx(x)
t.sety(y)
t.hideturtle()
screen.mainloop()
def preorder(root,visit,posi:bool,t:tt.Turtle,angle):
if root.get('value',None) is not None:
visit(root,t,posi,angle)
preorder(root['leftChild'],visit,LEFT,t.clone(),angle-8)
preorder(root['rightChild'],visit,RIGHT,t.clone(),angle-8)
from turtle import Turtle
from random import randint
import tkinter as _
pic = Turtle()
pic.speed(1)
bic = pic.clone()
bic.speed(40)
sic = bic.clone()
sic.speed(40)
kic = sic.clone()
kic.speed(20)
while True:
colorid = round(randint(100000,
900000)) #get a random color using color id
colorid = str(colorid)
colors = ['white', '#00CED1']
WIDTH, LENGTH = 25, 125
pic.width(WIDTH)
#pic.hideturtle()
pic.color("#" + colorid)
pic.left(180)
pic.backward(90)
pic.left(90)
pic.forward(90)
pic.right(90)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from turtle import Turtle, Screen
screen = Screen()
base_turtle = Turtle()
base_turtle.speed(0)
for i in range(1,9):
new_tut = base_turtle.clone()
new_tut.left(45*i)
new_tut.forward(200)
print("theta: ", round(new_tut.heading()) ,"rad: ", round(new_tut.distance(base_turtle)))
screen.mainloop()
# import turtleee
from turtle import Screen, Turtle
screen = Screen()
turtle = Turtle()
turtle.speed(5)
turtle.shape("turtle")
num_sides = 12
side_size = 40
angle = 360 / 12
for side in range(num_sides):
turtle.forward(side_size)
turtle.clone()
turtle.left(180)
turtle.forward(side_size)
turtle.left(180 - angle)
screen.mainloop()
Нажмите Escape для выхода
--------------------------
"""
from turtle import Turtle, Screen
clr = (64, 64, 64)
text_list = ['R', 'G', 'B', '', 90, -60, -210, 250]
cl_list = ['red', 'green', 'blue', 150, 0, -150]
screen = Screen()
screen.delay(0)
screen.title('Миксер цветов')
screen.colormode(255)
cl_r = Turtle(shape='circle')
cl_g = cl_r.clone()
cl_b = cl_r.clone()
for t, turtle in enumerate(screen.turtles()):
turtle.speed(0)
turtle.shapesize(3, 3, 5)
turtle.color(cl_list[t])
turtle.width(10)
turtle.pu()
turtle.setpos(-255, cl_list[3 + t])
turtle.pd()
turtle.setx(255)
turtle.pu()
turtle.setx(0)
turtle.pencolor(clr)