一、安装brew

首先安装Xcode
将以下内容复制到终端运行

$ /bin/zsh -c "$(curl -fsSL https://gitee.com/huwei1024/HomebrewCN/raw/master/Homebrew.sh)"

# 安装完成 brew -v 报错: 
#	原因 M1 更换了 brew 安装路径
#	需要修改环境变量
$ cd
$ vim .zshrc
export PATH=/opt/homebrew/bin:$PATH
export PATH=/opt/homebrew/sbin:$PATH

$ source .zshrc
$ brew -v
Homebrew 3.4.1-52-gf0f1eb6-dirty
Homebrew/homebrew-core (git revision ffaaa05a956; last commit 2022-03-12)
Homebrew/homebrew-cask (git revision 0a97b50172; last commit 2022-03-13)

二、安装依赖

$ brew install py3cairo ffmpeg
$ brew install cmake automake pango scipy
$ pip3 install manim

安装过程发现缺失 zlib 和 expat

# 首先安装 wget
$ brew install wget
$ wget http://www.zlib.net/zlib-1.2.11.tar.gz 
$ tar -zxvf zlib-1.2.11.tar.gz 
$ cd zlib-1.2.11
$ ./configure
$ make
$ sudo make install

安装expat：github搜索

$ tar -zxvf expat-*.*.*.tar.gz
$ cd expat-*.*.*
$ ./buildconf.sh
$ ./configure
$ make
$ sudo make install

三、运行测试

manim 测试

$ manim
Manim Community v0.15.1

Usage: manim [OPTIONS] COMMAND [ARGS]...

  Animation engine for explanatory math videos
 
Options:
  --version  Show version and exit.
  --help     Show this message and exit.

运行例程

from manim import *

class SquareToCircle(Scene):
    def construct(self):
        circle = Circle()  # create a circle
        circle.set_fill(PINK, opacity=0.5)  # set color and transparency

        square = Square()  # create a square
        square.rotate(PI / 4)  # rotate a certain amount

        self.play(Create(square))  # animate the creation of the square
        self.play(Transform(square, circle))  # interpolate the square into the circle
        self.play(FadeOut(square))  # fade out animation


class AnimatedSquareToCircle(Scene):
    def construct(self):
        circle = Circle()  # create a circle
        square = Square()  # create a square

        self.play(Create(square))  # show the square on screen
        self.play(square.animate.rotate(PI / 4))  # rotate the square
        self.play(
            ReplacementTransform(square, circle)
        )  # transform the square into a circle
        self.play(
            circle.animate.set_fill(PINK, opacity=0.5)
        )  # color the circle on screen

class DifferentRotations(Scene):
    def construct(self):
        left_square = Square(color=BLUE, fill_opacity=0.7).shift(2 * LEFT)
        right_square = Square(color=GREEN, fill_opacity=0.7).shift(2 * RIGHT)
        self.play(
            left_square.animate.rotate(PI), Rotate(right_square, angle=PI), run_time=2
        )
        self.wait()

class Count(Animation):
    def __init__(self, number: DecimalNumber, start: float, end: float, **kwargs) -> None:
        # Pass number as the mobject of the animation
        super().__init__(number,  **kwargs)
        # Set start and end
        self.start = start
        self.end = end

    def interpolate_mobject(self, alpha: float) -> None:
        # Set value of DecimalNumber according to alpha
        value = self.start + (alpha * (self.end - self.start))
        self.mobject.set_value(value)


class CountingScene(Scene):
    def construct(self):
        # Create Decimal Number and add it to scene
        number = DecimalNumber().set_color(WHITE).scale(5)
        # Add an updater to keep the DecimalNumber centered as its value changes
        number.add_updater(lambda number: number.move_to(ORIGIN))

        self.add(number)

        self.wait()

        # Play the Count Animation to count from 0 to 100 in 4 seconds
        self.play(Count(number, 0, 100), run_time=4, rate_func=linear)

        self.wait()

class MobjectExample(Scene):
    def construct(self):
        p1= [-1,-1,0]
        p2= [1,-1,0]
        p3= [1,1,0]
        p4= [-1,1,0]
        a = Line(p1,p2).append_points(Line(p2,p3).points).append_points(Line(p3,p4).points)
        point_start= a.get_start()
        point_end  = a.get_end()
        point_center = a.get_center()
        self.add(Text(f"a.get_start() = {np.round(point_start,2).tolist()}", font_size=24).to_edge(UR).set_color(YELLOW))
        self.add(Text(f"a.get_end() = {np.round(point_end,2).tolist()}", font_size=24).next_to(self.mobjects[-1],DOWN).set_color(RED))
        self.add(Text(f"a.get_center() = {np.round(point_center,2).tolist()}", font_size=24).next_to(self.mobjects[-1],DOWN).set_color(BLUE))

        self.add(Dot(a.get_start()).set_color(YELLOW).scale(2))
        self.add(Dot(a.get_end()).set_color(RED).scale(2))
        self.add(Dot(a.get_top()).set_color(GREEN_A).scale(2))
        self.add(Dot(a.get_bottom()).set_color(GREEN_D).scale(2))
        self.add(Dot(a.get_center()).set_color(BLUE).scale(2))
        self.add(Dot(a.point_from_proportion(0.5)).set_color(ORANGE).scale(2))
        self.add(*[Dot(x) for x in a.points])
        self.add(a)

class HelloLaTeX(Scene):
    def construct(self):
        tex = Tex(r"\LaTeX", font_size=144)
        self.add(tex)


class IncorrectLaTeXSubstringColoring(Scene):
    def construct(self):
        equation = MathTex(
            r"e^x = x^0 + x^1 + \frac{1}{2} x^2 + \frac{1}{6} x^3 + \cdots + \frac{1}{n!} x^n + \cdots"
        )
        equation.set_color_by_tex("x", YELLOW)
        self.add(equation)

class MovingFrameBox(Scene):
    def construct(self):
        text=MathTex(
            "\\frac{d}{dx}f(x)g(x)=","f(x)\\frac{d}{dx}g(x)","+",
            "g(x)\\frac{d}{dx}f(x)"
        )
        self.play(Write(text))
        framebox1 = SurroundingRectangle(text[1], buff = .1)
        framebox2 = SurroundingRectangle(text[3], buff = .1)
        self.play(
            Create(framebox1),
        )
        self.wait()
        self.play(
            ReplacementTransform(framebox1,framebox2),
        )
        self.wait()

运行测试

$ manim -pql scene.py
# 识别当前文件中的类
1: AnimatedSquareToCircle
2: CountingScene
3: DifferentRotations
4: HelloLaTeX
5: IncorrectLaTeXSubstringColoring
6: MobjectExample
7: MovingFrameBox
8: SquareToCircle

Choose number corresponding to desired scene/arguments.
(Use comma separated list for multiple entries)
Choice(s):  7 # 选择运行程序

测试结果

目录

一、安装brew

二、安装依赖

三、运行测试