这次筛选到了Behackl博士的教程，逐步拆解，更为细腻~
参考视频在此【或请自行搜索上面的英文标题】；
本页中文版传送门【建设中】；
首先，国际通则：Just GET STARTED~ JUST DO IT~
然后，让我们行动起来~
Part 1 Things to know before you start History is complicated: different versions!CAUTION:
There are several incompatible versions of Manim floatong around.
- Manim: the community maintained version
- 3b1b/manim- manimgl- manimlib: the original version,
devdloped+ maintained mainly by Grant “3b1b” Sanderson
- Two ingredients: FFmpeg and Python( 3.7+ )
- Optional( but useful) : a LaTeX distribution like MiKTeX/TeXLive
- Caution: most installation videos are outdated!
Go to docs.manim.community and follow installation instructions for your OS!
- All community resources: www.manim.community
- Places to get help:
-
- Manim Discord server: manim.community/discord
-
- Reddit: reddit.com/r/manim
-
- GitHub discussions: github.com/ManimCommunity/manim
- Make sure to code + output when asking a question!
- Interactive worksheet: see description!
注：
1、代码实践过程根据运行环境及笔记需要略有改动；
2、经过实践理解，加入了一些自己的注释；
3、常见问题及大概率解决方案：
- Python相关：注意缩进、冒号，中英文字符、大小写；
- Manim相关：安装与运行环境；
- Coding相关：检查拼写；
from manim import * config.media_width="60%"代码直击1 FirstExample
%%manim -v WARNING -qm FirstExample
class FirstExample(Scene):
def construct(self):
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
green_square=Square(color=GREEN,fill_opacity=0.8)
green_square.next_to(blue_circle,RIGHT)
self.add(blue_circle,green_square)
注：ManimCE自动生成图片文件夹；
用VSCode右键这里，很方便打开相应文件夹；
- Write code in file.py
- Then run manim -qm -p file.py FirstExample in terminal
- Import manim, put code for scene in a cell
- %%manim -qm FirstExample at beginning of cell, then run it
- Scene: animation canvas
- Mobjects: Manim objects- Circle, Square, …
- Mobjects have properties- color, fill_opacity, …
- Some global constants: colors( BLUE, GREEN, …) and directions(UP, DOWN, RIGHT, …)
The reference manual at docs.manim.community lists all available classes and functions!
代码直击2 SecondExample%%manim -v WARNING -qm SecondExample
class SecondExample(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
self.add(ax, curve)
代码直击3 SecondExample2
%%manim -v WARNING -qm SecondExample2
class SecondExample2(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
self.add(ax, curve)
Part 3 Where are the animations?!
add, wait, play- Animations!
- Scene.add adds Mobjects immediately to the scene
- Scene.wait adds a pause
- Scene.play plays animations
- Animations can …
-
- add mobjects( Create, FadeIn, …)
-
- change mobjects( Transform, …)
-
- emphasize mobjects( Indicate, Circumscribe,…)
-
- remove mobjects( Uncreate, FadeOut, …)
%%manim -v WARNING -qm SecondExample2
class SecondExample2(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
self.add(ax)
self.play(Create(ax))
SecondExample2
注：ManimCE自动生成视频文件夹；
%%manim -v WARNING -qm SecondExample3
class SecondExample3(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
# self.add(ax)
self.play(Create(ax))
self.play(Create(curve))
self.wait(2)
SecondExample3
代码直击6%%manim -v WARNING -qm SecondExample4
class SecondExample4(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
# self.add(ax)
self.play(Create(ax),Create(curve))
self.wait(2)
SecondExample4
代码直击7%%manim -v WARNING -qm SecondExample5
class SecondExample5(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
# self.add(ax)
self.play(Create(ax),Create(curve))
self.play(FadeIn(area))
self.wait(2)
SecondExample5
# self.play(Create(ax),Create(curve))
self.play(Create(ax),Create(curve),run_time=3)
# self.play(Create(ax),Create(curve))
# self.play(Create(ax),Create(curve),run_time=3)
self.play(Create(ax,run_time=2),Create(curve),run_time=5)
代码直击8
%%manim -v WARNING -qm SquareToCircle
class SquareToCircle(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
SquareToCircle
代码直击9%%manim -v WARNING -qm SquareToCircle1
class SquareToCircle1(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
self.play(Transform(green_square,blue_circle))
self.wait(2)
SquareToCircle1
代码直击10%%manim -v WARNING -qm SquareToCircle2a
class SquareToCircle2a(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
self.play(Transform(green_square,blue_circle))
self.play(FadeOut(blue_circle))
#self.wait(2)
代码直击11
%%manim -v WARNING -qm SquareToCircle2b
class SquareToCircle2b(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
self.play(Transform(green_square,blue_circle))
#self.play(FadeOut(blue_circle))
self.play(FadeOut(green_square))
#self.wait(2)
代码直击12
%%manim -v WARNING -qm SquareToCircle2c
class SquareToCircle2c(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
#self.play(Transform(green_square,blue_circle))
self.play(ReplacementTransform(green_square,blue_circle))
self.play(FadeOut(blue_circle))
#self.play(FadeOut(green_square))
#self.wait(2)
SquareToCircle2c
代码直击13%%manim -v WARNING -qm SquareToCircle3
class SquareToCircle3(Scene):
def construct(self):
green_square=Square(color=GREEN,fill_opacity=0.5)
#self.add(green_square)
self.play(DrawBorderThenFill(green_square))
blue_circle=Circle(color=BLUE,fill_opacity=0.5)
self.play(ReplacementTransform(green_square,blue_circle))
#self.play(FadeOut(blue_circle))
self.play(Indicate(blue_circle))
#self.wait(2)
SquareToCircle3
Extra Try%%manim -v WARNING -qm ExtraTry1
class ExtraTry1(Scene):
def construct(self):
ax=Axes(x_range=(-3,3),y_range=(-3,3))
curve=ax.plot(lambda x: (x+2)*x*(x-2)/2,color=RED)
area=ax.get_area(curve, x_range=(-2,0))
# self.add(ax)
self.play(Create(ax),Create(curve))
self.play(FadeIn(area))
self.play(Indicate(ax))
self.play(Indicate(curve))
self.play(Indicate(area))
#self.wait(2)
ExtraTry1
