LaTeX与Turtle

turtle绘图笔记及LaTex示例

雨中漫步

之前在公众号介绍过turtle绘图笔记turtle绘图笔记及LaTex示例
说到五角星不得不提基于命令行界面绘图tikz的实现，下面是源于latex工作室的开源代码：

LaTex实现

\documentclass[tikz, svgnames]{standalone}
\usepackage{tikz, verbatim}
\usetikzlibrary{shapes.geometric}
\def\largo{30}
\def\alto{\largo/1.5}
\definecolor{Fire Engine Red}{HTML}{CF142B}
\definecolor{Gorse}{HTML}{FAE042}
\tikzstyle{estrella}=[fill=Gorse, star point ratio=2.617, minimum size=2 cm]
\begin{document}
\begin{tikzpicture}
	\fill[Fire Engine Red] rectangle (\largo, \alto); 
    \node[star,fill=Gorse, minimum size=6 cm, rotate=0, star point ratio=2.617] at (5,15) {}; 
    \foreach \x/\y/\z in {10/18/50, 12/16/25, 12/13/0, 10/11/50}{
	\node[star, estrella, rotate=\z] at (\x, \y){};
    }
\end{tikzpicture}
\end{document}

利用turtle也是可以完美解决，具体案例很多，可以去官网看看：

import turtle as t
t.setup(600, 400,0,0)
t.color('yellow','yellow')
t.bgcolor('red')


def mygoto(x, y):
    t.up()
    t.goto(x, y)
    t.down()

def star(r):
    t.begin_fill()

    for i in range(5):
        t.forward(r)
        t.left(-144)
    t.end_fill()

mygoto(-230, 100)
star(100)

for i in range(4):
    x = 1
    if i in [0, 3]:
        x = 0
    mygoto(-120 + x * 50, 150 - i * 40)
    t.left(15 - i * 15)
    star(30)

mygoto(0, 0)
t.hideturtle()
t.done()