Manjaro 安装使用manim

一开始按照这个教程做，但是他的教程是对于debian用户的。

malhotra5/Manim-Tutorial

Clone Manim

git clone https://github.com/3b1b/manim

manjaro 安装ffmpeg, sox, cairo, latex：

sudo pacman -S ffmpeg sox cairo
sudo pacman -S texlive-core texlive-humanities texlive-latexextra texlive-publishers texlive-fontsextra texlive-science texlive-langchinese
sudo pacman -S scipy

(对latex不是很熟悉所以就把textlive-most相关的全装了)

我还把requirements.txt里面的部分版本号给去掉了, 避免出现版本不匹配的错误.

测试

安装完成之后可以在项目目录执行

python3 -m manim example_scenes.py SquareToCircle -pl

来测试是否安装成功。

测试通过之后也可以通过这份代码来测试latex是否安装成功。

from manimlib.imports import *

class Equations(Scene):
def construct(self):
#Making equations
first_eq = TextMobject("$$J(\theta) = -\frac{1}{m} [\sum_{i=1}^{m} y^{(i)} \log{h_{\theta}(x^{(i)})} + (1-y^{(i)}) \log{(1-h_{\theta}(x^{(i)}))}] $$")
second_eq = ["$J(\theta_{0}, \theta_{1})$", "=", "$\frac{1}{2m}$", "$\sum\limits_{i=1}^m$", "(", "$h_{\theta}(x^{(i)})$", "-", "$y^{(i)}$", "$)^2$"]

second_mob = TextMobject(*second_eq)

for i,item in enumerate(second_mob):
if(i != 0):
item.next_to(second_mob[i-1],RIGHT)

eq2 = VGroup(*second_mob)

des1 = TextMobject("With manim, you can write complex equations like this...")
des2 = TextMobject("Or this...")
des3 = TextMobject("And it looks nice!!")

Coloring equations

second_mob.set_color_by_gradient("#33ccff","#ff00ff")

Positioning equations

des1.shift(2UP)
des2.shift(2UP)

Animating equations

self.play(Write(des1))
self.play(Write(first_eq))
self.play(ReplacementTransform(des1, des2), Transform(first_eq, eq2))
self.wait(1)

for i, item in enumerate(eq2):
if (i<2):
eq2[i].set_color(color=PURPLE)
else:
eq2[i].set_color(color="#00FFFF")

self.add(eq2)
self.wait(1)
self.play(FadeOutAndShiftDown(eq2), FadeOutAndShiftDown(first_eq), Transform(des2, des3))
self.wait(2)

执行

python3 -m manim pythonFile.py className -pl