https://github.com/jdonszelmann/csanim
it's like manim but for computer science!
https://github.com/jdonszelmann/csanim
Last synced: 11 months ago
JSON representation
it's like manim but for computer science!
- Host: GitHub
- URL: https://github.com/jdonszelmann/csanim
- Owner: jdonszelmann
- Created: 2018-07-02T13:41:06.000Z (about 8 years ago)
- Default Branch: master
- Last Pushed: 2018-07-04T11:39:44.000Z (about 8 years ago)
- Last Synced: 2025-08-18T05:39:20.702Z (11 months ago)
- Language: Python
- Homepage:
- Size: 390 KB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# CSanim
It's like manim (the program Grant uses for his channel 3blue1brown) but for computer science! special thanks to Grant Sanderson (3blue1brown, https://github.com/3b1b/manim)
Csanim generates videos. Many test videos can be found on our youtube channel [thekeychain](https://www.youtube.com/channel/UCUvhgZVZjBGB5NvLH_M-n9g)
## installation:
To install csanim, clone this repository, and run the install.sh script. (commands below)
This script is only tested for Ubuntu.
To install csanim on other systems install the following packages:
- ffmpeg
- python3
- pyhon3-pip
- python3-opengl (or use pip3 install pyopengl)
- dvipng
- texlive
- texlive-latex-extra
installation commands: (Ubuntu):
```bash
git clone https://github.com/jonay2000/csanim
cd csanim
./install.sh
```
## usage:
To start, import csanim with
```python
from csanim import *
```
After this import, you can start a new video by creating a frame manager:
```python
#FrameManager(fps,width,height,name)
f = FrameManager(60,1920,1080,"video.mp4") #1080p 60fps
f.set_background(Color(0, 0, 0))
```
Now you can start defining points in the video at which some change to the seen will happen.
This can be done with the @f.second() or @f.frame() decorator.
f.second(sec) will take 1 argument defining on which second the function must be called (this can be a float)
f.frame(frame) will take 1 argument defining on which frame the function must be called (this must be an integer)
example:
```python
@f.second(1)
def second1(manager):
manager.draw(LatexText(120, #visible for 120 frames (2 seconds on 60fps)
Color(255,255,255), #color: white
100,100,#x,y #draw on (100,100)
1.5,#scale #scale up by 50%
r'\int_0^1 e^x\,dx' #latex string (integral from 0 to 1 of e^x dx)
))
```
now you can start rendering this video by calling the run() method of thye framemanager:
```python
f.run(2*60) #run takes 1 argument specifying how many frames should be rendered. Since the video is on 60 fps
#it should run 120 frames for 2 seconds. After the first second the Latex text will be visible
```
this last action may take some time, depending on the complexity of the scene. There are currently NO optimizations so slow might mean very slow