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Python——蟒蛇图形绘制(turtle绘图体系)

作者:互联网

蟒蛇的基本图形:

turtle绘图体系是Python语言的标准库之一
使用turtle绘图体系首先要设置turtle的绘图窗体,这和java中的GUI界面相似

turtle.setup(width,height,startx.starty)
//startx,stary 可以省略,就是在屏幕中央


turtle空间坐标体系:

绝对坐标:

turtle.goto(100,-100)
turtle.goto(0,0)

海龟坐标:

 

turtlr.circle(r,angle)//半径和角度
turtle.bk(d)//后退d
turtle.fd(d)//前进d

turtle角度坐标体系:

绝对角度:

turtle.seth(angle)
//seth()改变海龟行进方向
//angle为绝对度数
//seth()只改变方向不行进

 

海龟角度:

RGB色彩体系:

默认采用小数值,可切换为整数值

turtle.colormode(mode)

turtle画笔控制函数:

turtle.penup()
turtle.pu()
//抬起画笔,海龟在飞行
turtle.pendown()
turtle.pd()
//落下画笔,海龟在爬行
turtle.pensize(width)
turtle.width(width)
//画笔宽度,海龟的腰围
turtle.pencolor(color)
turtle.pencolor("purple")
turtle.pencolor(0.63,0.13,0.94)
turtle.pencolor((0.63,0.13,0.94))
//画笔颜色,海龟在涂装

完整代码:

#PythonDraw.py
import turtle
turtle.setup(650, 350, 200, 200)
turtle.penup()
turtle.fd(-250)
turtle.pendown()
turtle.pensize(25)
turtle.pencolor("purple")
turtle.seth(-40)
for i in range(4):
    turtle.circle(40, 80)
    turtle.circle(-40, 80)
turtle.circle(40, 80/2)
turtle.fd(40)
turtle.circle(16, 180)
turtle.fd(40 * 2/3)
turtle.done()

 

标签:turtle,画笔,Python,40,蟒蛇,pencolor,海龟,circle
来源: https://blog.csdn.net/red_red_red/article/details/95086523