manim | Animation engine for explanatory math videos | Animation library
kandi X-RAY | manim Summary
kandi X-RAY | manim Summary
Manim is an engine for precise programmatic animations, designed for creating explanatory math videos. Note, there are two versions of manim. This repository began as a personal project by the author of 3Blue1Brown for the purpose of animating those videos, with video-specific code available here. In 2020 a group of developers forked it into what is now the community edition, with a goal of being more stable, better tested, quicker to respond to community contributions, and all around friendlier to get started with. See this page for more details.
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Top functions reviewed by kandi - BETA
- Visualize the function graph .
- Parse command line arguments .
- Initialize the configuration .
- Get configuration .
- Return a section of the slope segment
- Calculate the earclip of a triangle .
- Compute the cubic approximation of the cubic approximation .
- Updates the shadow cloud
- Generate a list of animation instances from play_args .
- Modify special characters .
manim Key Features
manim Examples and Code Snippets
Lines of Code : 0License : Permissive (MIT)
CopyASPECT_RATIO = 16.0 / 9.0
FRAME_HEIGHT = 8.0
FRAME_WIDTH = FRAME_HEIGHT * ASPECT_RATIO
FRAME_Y_RADIUS = FRAME_HEIGHT / 2
FRAME_X_RADIUS = FRAME_WIDTH / 2
DEFAULT_PIXEL_HEIGHT = 1080
DEFAULT_PIXEL_WIDTH = 1920
DEFAULT_FPS = 30 SMALL_BUFF = 0.1
MED_SMALL_BUFF = 0.25
MED_LARGE_BUFF = 0.5
LARGE_BUFF = 1
DEFAULT_MOBJECT_TO_EDGE_BUFFER = MED_LARGE_BUFF # Distance between object and edge
DEFAULT_MOBJECT_TO_MOBJECT_BUFFER = MED_SMALL_BUFF # Distance between objects DEFAULT_POINTWISE_FUNCTION_RUN_TIME = 3.0
DEFAULT_WAIT_TIME = 1.0 from docutils import nodes
from docutils.parsers.rst import directives, Directive
import jinja2
import os
class skip_manim_node(nodes.Admonition, nodes.Element):
pass
def visit(self, node, name=""):
self.visit_admonition(node, name)
de from manimlib import *
class SquareToCircle(Scene):
def construct(self):
circle = Circle()
circle.set_fill(BLUE, opacity=0.5)
circle.set_stroke(BLUE_E, width=4)
square = Square()
self.play(ShowCreation(sq text = MathTex(r"\frac{a}{b}", font_size=24)
self.add(index_labels(text[0]))
text[0][0:1].set_color(YELLOW)
text[0][1:2].set_color(RED)
self.add(text)
apt-get install sox ffmpeg libcairo2 libcairo2-dev
apt-get install texlive-full
pip3 install manimlib # or pip install manimlib
pip3 install manimce # or pip install manimce
from manimlib.mobject import geometry.Polygon as Polygon, svg.text_mobject.Text as Text
class MainScene(Scene):
def construct(self):
...
neurons = NeuralNetworkMobject()
your_animation_function(neurons)
def your_animation_function(self, neurons):
self.play(FadeIn(neurons))
...
class Table1(Scene):
def construct(self):
table = r"""
\begin{table}[]
\centering
\begin{tabular}{|l|l|l|l|l|}\hline
& & \multicolumn{2}{l}{End} & \\\hline
Top & & Community Discussions
Trending Discussions on manim
QUESTION
I am working on a Manim project where I am manipulating equations algebraically. This is made easy using many of the provided utilities, but in order to do so smoothly I must separate MathTex objects into multiple isolated "fragments". This can be done in many ways, but I have opted to use the double brace syntax:
ANSWER
Answered 2022-Mar-13 at 22:53The Manim CE examples also mention another method for complex strings when isolating sub-strings do not work. It involves considering manual indices of the individual substrings and setting the colour on the substring indices directly.
So, for the Tex code \frac{a}{b}, it would probably look a bit like this:
QUESTION
I was making animation with manim and I tried to make line that one end is fixed, and one end moves along the arc. The way I wanted to solve this problem was to define each point with theta, and let the point move along the arc as it moves. However, even if the setta was changed, the line did not move, so the rotate was used, but the length of the line did not change, so the line deviated from the arc and failed. I wonder how to make the line move smoothly with the size of the angle when theta value is changed to an arbitrary value with theta as a parameter.
...ANSWER
Answered 2022-Mar-12 at 08:47Your mobjects do not change because the dependency on Theta is not retained after initializing the mobject -- but it doesn't take too much to make it work!
The solution to your Problem is using a ValueTracker for the value of theta (to easily allow animating changing it) and updater functions for the mobjects you would like to change. In other words:
QUESTION
Here is a sample code:
...ANSWER
Answered 2022-Feb-26 at 21:41Manim doesn't handle simultaneous animations called on the same mobject in that manner. Instead, you can actually chain animations with the .animate syntax to get the effect you want. So:
QUESTION
The value_tracker seems to not take into account the z.index for a small amount of time at the end when changing its values and I don't really understand why. I've deliberately added lots of set_z_index(1) to try and solve it but nothing did. Here is a sort of minimalist example of the problem:
...ANSWER
Answered 2022-Feb-15 at 20:57AnimationGroup does some very weird things from time to time. In this particular instance, it messes with the rendered mobject order (which is a particularly common side effect, unfortunately). If you don't absolutely have to use it, avoid it.
In this case, you can simply change your play call to
QUESTION
Is there any way to debug a Manim community python script within PyCharm?
I found this discussion for Manim 3b1b version but it doesn't apply to Manim community and I prefer to use the community version as it seems to be better documented.
...ANSWER
Answered 2022-Feb-14 at 13:31Whenever I am debugging the library, I avoid using the CLI and render scenes directly from the file. Just add a snippet like this:
QUESTION
I'm trying to run this example from Manim community documentation:
...ANSWER
Answered 2022-Feb-13 at 10:13Can only add answers and no comments yet (apologies) -- you could try to upgrade manimpango via pip install -U manimpango. As a workaround, using Tex instead would also work as long as you have LaTeX installed.
QUESTION
Manim Renders scene(s) to an output file with,
...ANSWER
Answered 2022-Feb-13 at 10:05I'm not sure I fully understand your first question regarding arguments -- do you mean custom arguments? We don't have support for that yet.
However, you can definitely render scenes from your Python script directly by using a snippet like this:
QUESTION
I am connecting two rectangles with a line with a tip or an arrow (it doesn't matter which one). I only want buff at the end of the arrow, not both start and end.
...ANSWER
Answered 2022-Feb-13 at 09:54Unfortunately buff is a symmetric quantity. You'll have to modify the end points manually to get the desired effect.
QUESTION
I would like to be able to robustly stop a video when the video arrives on some specified frames in order to do oral presentations based on videos made with Blender, Manim...
I'm aware of this question, but the problem is that the video does not stops exactly at the good frame. Sometimes it continues forward for one frame and when I force it to come back to the initial frame we see the video going backward, which is weird. Even worse, if the next frame is completely different (different background...) this will be very visible.
To illustrate my issues, I created a demo project here (just click "next" and see that when the video stops, sometimes it goes backward). The full code is here.
The important part of the code I'm using is:
...ANSWER
Answered 2022-Jan-21 at 19:18The video has frame rate of 25fps, and not 24fps:
After putting the correct value it works ok: demo
The VideoFrame api heavily relies on FPS provided by you. You can find FPS of your videos offline and send as metadata along with stop frames from server.
The site videoplayer.handmadeproductions.de uses window.requestAnimationFrame() to get the callback.
There is a new better alternative to requestAnimationFrame. The requestVideoFrameCallback(), allows us to do per-video-frame operations on video.
The same functionality, you domed in OP, can be achieved like this:
QUESTION
Error while installing manimce, I have been trying to install manimce library on windows subsystem for linux and after running
...ANSWER
Answered 2022-Jan-28 at 02:24apt-get install sox ffmpeg libcairo2 libcairo2-dev
apt-get install texlive-full
pip3 install manimlib # or pip install manimlib
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install manim
Install LaTeX as above.
Create a conda environment using conda create -n manim python=3.8.
Activate the environment using conda activate manim.
Install manimgl using pip install -e ..
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