查看“Manim”的源代码

Manim是一个用于创建数学动画的Python库。最初由[https://www.3blue1brown.com/ 3Blue1Brown]作者为个人项目而开发。目前由两个版本，一个是3b1b版，一个是manim社区版。

==简介==
===时间轴===

===版本===
{| class="wikitable" 
! 名称
! 描述
! 官网
|-
|manim 社区版
| 由 Manim Community 开发团队维护，目标是更稳定易使用。<br />安装：<code>pip install manim</code>
| https://github.com/ManimCommunity/manim
|-
| manim 3b1b版
| 也称ManimGL，通过OpenGL渲染。由 3Blue1Brown 的 Grant Sanderson 维护。<br />安装：<code>pip install manimgl</code>
| https://github.com/3b1b/manim
|}

===安装===
====Windows====
* 安装好[[FFmpeg]]，命令行输入<code>ffmpeg --version</code>检验。
* 安装好[[LaTeX]]，如果需要用到LaTeX则安装。命令行输入<code>latex --version</code>检验。
* 使用如下命令安装
 pip install manim

{{了解更多
|[https://docs.manim.community/en/stable/installation/windows.html Manim 社区版文档：安装/Windows]
}}

==快速入门==
新建一个目录project。新建一个文件<code>scene.py</code>，输入如下代码：
<syntaxhighlight lang="python" >
from manim import *

class CreateCircle(Scene):
    def construct(self):
        circle = Circle()  # 创建一个圆形
        circle.set_fill(PINK, opacity=0.5)  # 填充颜色和透明度
        self.play(Create(circle))  # 显示在屏幕上
</syntaxhighlight>

打开命令行，进入project目录，执行如下命令：
 manim -pql scene.py CreateCircle

Manim 将输出渲染信息，然后创建一个 MP4 文件。

{{了解更多
|[https://docs.manim.community/en/stable/tutorials/quickstart.html Manim 文档：快速开始]
}} 



==对象==
{{了解更多
|[https://docs.manim.community/en/stable/reference_index/mobjects.html Manim 文档：Mobjects]
}}
===几何图形===
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.geometry.arc.html#module-manim.mobject.geometry.arc  Manim 文档：几何图形/弧形的]
}}
====弧形的====
都位于manim.mobject.geometry.arc模块
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.geometry.arc.Circle.html#manim.mobject.geometry.arc.Circle Circle]
| 圆形 
|<code>Circle()</code> <br /><code>Circle(radius=2.0, color=BLUE_B, fill_opacity=1)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.geometry.arc.Dot.html Dot]
| 点 
| <code>Dot()</code> <br /><code>Dot(point=LEFT, radius=0.1)</code><br /><code>Dot(color='#FF00FF')</code>
|-
| 
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.geometry.arc.Arc.html  Manim 文档：Arc]
}}

====线====
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.geometry.line.Line.html#manim.mobject.geometry.line.Line Line]
| 线段   <br />常用函数：<br /><code>put_start_and_end_on(start, end)</code> 设置线的开始和结束坐标
| <code>Line()</code> <br /><code>Line([1,1,0], [2,2,0])</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.geometry.line.Arrow.html Arrow]
| 箭头
| <code>Arrow(start=LEFT, end=RIGHT)</code> <br /><code>Arrow([1,1,0], [2,2,0])</code>
|-
| 
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.geometry.line.html Manim 文档：line]
}}

====多边形====
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.geometry.polygram.Square.html#manim.mobject.geometry.polygram.Square Square]
| 正方形
| <code>Square(side_length=2.0)</code> <br /><code>Square(0.6)</code>
|-
| 
| 
| 
|-
| 
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.geometry.polygram.html Manim 文档：polygram]
}}

===文本===
使用[LaTeX]渲染的类：MathTex、SingleStringMathTex、Tex、TexSymbol、Title。
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.text_mobject.html#module-manim.mobject.text.text_mobject Text]
| 文本对象。
| <code>Text('Hello world')</code> <br /><code>Text('你好').set_color(WHITE)</code></code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.text_mobject.MarkupText.html#manim.mobject.text.text_mobject.MarkupText MarkupText]
| 标记文本。可以使用[https://pango.gnome.org/ Pango]布局库（类似html）渲染
| <code><nowiki>MarkupText('<span foreground="red" size="x-large">你</span>好，<i>世界</i>！')</nowiki></code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.text_mobject.Paragraph.html Paragraph]
| 段落。
|
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.tex_mobject.Title.html#manim.mobject.text.tex_mobject.Title Title]
| 标题。基于Tex类
| <code>Title("我是标题")</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.tex_mobject.MathTex.html#manim.mobject.text.tex_mobject.MathTex MathTex]
| 使用LaTeX渲染文本，数学模式。基于SingleStringMathTex类
|<code>MathTex(r"\int_a^b f'(x) dx = f(b)- f(a)")</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.tex_mobject.Tex.html#manim.mobject.text.tex_mobject.Tex Tex]
| 使用LaTeX渲染文本，普通模式。基于MathTex类
| <code>Tex('世界')</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.text.code_mobject.Code.html Code] 
| 高亮显示源代码
|
|-
| 
| 
|
|}

{{了解更多
|[https://docs.manim.community/en/stable/guides/using_text.html Manim 文档：主题指南/渲染文本和公式]
|[https://docs.manim.community/en/stable/reference/manim.mobject.text.html  Manim 文档：text]
}}
=== 表格 ===

{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.table.html  Manim 文档：table]
}}

=== 图像 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.types.image_mobject.ImageMobject.html ImageMobject]
| 显示图像，通过文件或numpy数组。可以是相对路径或绝对路径
| <code>ImageMobject('picture.jpg')</code> <br /><code>ImageMobject(np.uint8([[0, 100, 30, 200],[255, 0, 5, 33]]))</code>
|-
| AbstractImageMobject
| 
| 
|-
|ImageMobjectFromCamera
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.types.image_mobject.html Manim 文档：image_mobject]
}}

=== 矢量化 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.mobject.types.vectorized_mobject.VGroup.html VGroup]
| 组合多个实例，以便一起操作，如缩放、移动等。 <br /> 添加元素可以使用<code>add()</code>、<code>+</code>和<code>+=</code>，删除元素使用<code>remove()</code>、<code>-</code>和<code>-=</code> <br />常用方法：<br /><code>arrange()</code> 对齐。<code>VGroup(t1, t2).arrange(direction=DOWN, aligned_edge=LEFT)</code>
| <code>VGroup(c1, c2, c3)</code>
|-
| 
| 
| 
|-
| 
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.mobject.types.vectorized_mobject.html Manim 文档：vectorized_mobject]
}}
==动画==
=== 动画 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.animation.Animation.html animation]
| 动画。
| <code>circle_1.animate(run_time=1, lag_ratio=0.1).shift(UP * 2)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.animation.Wait.html Wait]
| 等待动画，无操作。
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.animation.html  Manim 文档：animation]
}}

===改变===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.changing.AnimatedBoundary.html#manim.animation.changing.AnimatedBoundary AnimatedBoundary]
| 边框颜色变化动画。
| <code>AnimatedBoundary(Text("闪耀！"), colors=[RED, GREEN, BLUE], cycle_rate=3)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.changing.TracedPath.html TracedPath]
| 追踪返回点的路径。
|  
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.changing.html  Manim 文档：changing]
}}

=== 显示或移除 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.Create.html Create]
| 增量显示一个 VMobject
| <code>Create(Square())</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.Uncreate.html Uncreate]
| 移除一个 VMobject动画
| <code>Uncreate(Square())</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.Write.html Write]
| 模拟手写一个Text或VMobject
| <code>Text("Hello", font_size=120)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.Unwrite.html Unwrite]
| 模拟手动擦除一个Text或VMobject
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.AddTextLetterByLetter.html AddTextLetterByLetter]
| 逐个字母显示文本
| <code>AddTextLetterByLetter(>Text("Hello"))</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.creation.AddTextWordByWord.html#manim.animation.creation.AddTextWordByWord AddTextWordByWord ]
| 逐个单词显示文本
| <code>AddTextWordByWord(>Text("Hello, World"))</code>
|-
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.ShowIncreasingSubsets.html ShowIncreasingSubsets]
| 逐个显示VGroup的元素VMobject，之前显示子对象不消失。
|<code>ShowIncreasingSubsets( VGroup(Dot(), Square(), Triangle()) )</code>
|-
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.ShowSubmobjectsOneByOne.html ShowSubmobjectsOneByOne]
| 逐个显示VGroup的元素VMobject，之前显示子对象不显示。
|<code>ShowIncreasingSubsets( VGroup(Dot(), Square(), Triangle()) )</code>
|-
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.DrawBorderThenFill.html DrawBorderThenFill]
|首先绘制边框，然后显示填充。
|<code>DrawBorderThenFill(Square(fill_opacity=1, fill_color=ORANGE))</code>
|-
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.SpiralIn.html SpiralIn]
| 螺旋飞入动画
| 
|-
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.ShowPartial.html ShowPartial]
|
|
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.creation.html  Manim 文档：creation]
}}

===淡入淡出 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.fading.FadeIn.html FadeIn]
| 淡入  <br /><br />参数：<br />mobjects – 要淡入的 mobjects。<br />shift – mobject 在淡入时移动的向量。<br />target_position – mobject 在淡入时开始的位置。如果另一个 mobject 被指定为目标位置，则使用它的中心。<br />scale – mobject 在淡入时重新缩放到其原始大小之前最初缩放的因子。
| <code>FadeIn(Text("hello"))</code> <br /><code>FadeIn(Text("hello"), shift=DOWN)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.fading.FadeOut.html FadeOut]
| 淡出 参数同淡入
|  <code>FadeOut(Text("hello"))</code> <br /><code>FadeIn(Text("hello"), scale=0.5)</code>
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.fading.html  Manim 文档：fading]
}}

=== 生长 ===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.growing.GrowFromCenter.html GrowFromCenter]
| 从中心生长 <br /><br />参数：<br />mobject – 要引入的 mobjects。<br />point_color – mobject 生长完成前的颜色。
|<code>GrowFromCenter(Square())</code> <br /><code>GrowFromCenter(Square(), point_color=RED)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.growing.GrowFromPoint.html GrowFromPoint]
| 从一个点生长 <br /><br />参数：mobject – 要引入的 mobjects。<br />point – mobject 增长的起点。<br />oint_color –生长完成前的颜色
| <code>GrowFromPoint(Square(), ORIGIN))</code> <br /><code><code>GrowFromPoint(Square(), [-2, 2, 0]))</code></code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.growing.GrowFromEdge.html GrowFromEdge]
| 从一个边生长 
| <code>GrowFromEdge(Square(), RIGHT)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.growing.SpinInFromNothing.html SpinInFromNothing]
| 从中心旋转生长 <br /><br />参数：<br />angle – mobject 达到其完整大小之前的旋转量。。例如 2*PI 表示一次完整旋转
| <code>SpinInFromNothing(Square())</code><br /><code>SpinInFromNothing(Square(), angle=2 * PI)</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.growing.GrowArrow.html GrowArrow]
| 箭头生长
| <code>GrowArrow(Arrow())</code>
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.growing.html  Manim 文档：growing]
}}

===吸引注意力===
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.Wiggle.html Wiggle]
| 摇摆
| <code>Wiggle(Text("Wiggle"))</code>
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.ApplyWave.html ApplyWave]
| 波浪
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.Circumscribe.html Circumscribe]
| 周围画线
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.Flash.html Flash]
| 闪光
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.FocusOn.html FocusOn]
| 专注于
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.Indicate.html Indicate]
| 注明，通过临时调整大小和颜色来突出。
| 
|-
| [https://docs.manim.community/en/stable/reference/manim.animation.indication.ShowPassingFlash.html ShowPassingFlash]
| 每帧只显示 VMobject 的一小部分。
| 
|-
| 
| 
| 
|}
{{了解更多
|[https://docs.manim.community/en/stable/reference/manim.animation.indication.html Manim 文档：indication]
}}

=== 变换 ===

=== 运动 ===



==相机==

==命令行和配置==

==场景==



==资源==
===官网===
* Manim 3b1b版官网：https://github.com/3b1b/manim
* Manim 3b1b版文档：https://3b1b.github.io/manim/
* Manim 3b1b版中文文档：https://docs.manim.org.cn/development/about.html
* Manim 社区版官网： https://www.manim.community/
* Manim 社区版文档：https://docs.manim.community/
* Manim 社区版源代码：https://github.com/ManimCommunity/manim

===文章===
*[https://github.com/cai-hust/manim-tutorial-CN cai-hust/manim-tutorial-CN：manim中文入门教程]