Python_Turtle繪制正弦函式影像(采用函式描點法繪制)(turtle實作)
- 1.SinDot.py
- 2.結果示例
【注1】采用函式描點法繪制影像,最后一篇,要實作其他的函式影像使用turtle海龜庫繪制,在代碼中替換成相應的函式運算式即可,
【注2】采用點動成線的原理繪制,密集的描點即可!
1.SinDot.py
import turtle
import math
turtle.speed(0)
turtle.delay(0)
turtle.tracer(False)
i=-150
while(i<=150):
i=i+0.1
turtle.penup()
y = 60*math.sin(0.06*i+0.5)+20
turtle.goto(i,y)
turtle.pendown()
turtle.dot(4)
turtle.penup()
turtle.goto(0,0)
turtle.pendown()
turtle.seth(90)
turtle.fd(230)
turtle.seth(-70)
turtle.fd(15)
turtle.penup()
turtle.goto(0,230)
turtle.pendown()
turtle.seth(-110)
turtle.fd(15)
turtle.penup()
turtle.goto(0,0)
turtle.pendown()
turtle.seth(-90)
turtle.fd(90)
turtle.penup()
turtle.goto(0,0)
turtle.pendown()
turtle.seth(0)
turtle.fd(150)
turtle.seth(-160)
turtle.fd(15)
turtle.penup()
turtle.goto(150,0)
turtle.pendown()
turtle.seth(160)
turtle.fd(15)
turtle.penup()
turtle.goto(0,0)
turtle.pendown()
turtle.seth(-180)
turtle.fd(150)
turtle.penup()
turtle.goto(0,-120)
turtle.write("正弦函式方程影像:y = 60*math.sin(0.06*i+0.5)+20",True,align="center")
turtle.goto(0,-300)
turtle.done()
2.結果示例

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