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manim-slides/README.md
Federico Galatolo 38e03db9e9 updated readme
2021-06-18 21:33:11 +02:00

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# manim-presentation
Tool for live presentations using [manim](https://www.manim.community/)
## Install
```
pip install manim-presentation opencv-python
```
## Usage
Use the class `Slide` as your scenes base class
```python
from manim_presentation import Slide
class Example(Slide):
def construct(self):
...
```
call `self.pause()` when you want to pause the playback and wait for an input to continue (check the keybindings)
Wrap a series of animations between `self.start_loop()` and `self.stop_loop()` when you want to loop them (until input to continue)
```python
from manim import *
from manim_presentation import Slide
class Example(Slide):
def construct(self):
circle = Circle(radius=3, color=BLUE)
dot = Dot()
self.play(GrowFromCenter(circle))
self.pause()
self.start_loop()
self.play(MoveAlongPath(dot, circle), run_time=2, rate_func=linear)
self.end_loop()
self.play(dot.animate.move_to(ORIGIN))
self.pause()
self.wait()
```
You **must** end your `Slide` with a `self.play(...)` or a `self.wait(..)`
To start the presentation using `Scene1`, `Scene2` and so on simply run:
```
manim_presentation Scene1 Scene2...
```
## Default Keybindings
Default keybindings to control the presentation
| Keybinding | Action |
|:-----------:|:------------------------:|
| Right Arrow | Continue/Next Slide |
| Left Arrow | Previous Slide |
| R | Re-Animate Current Slide |
| Spacebar | Play/Pause |
| Q | Quit |
You can specify different keybindings creating a file named `manim-presentation.json` with the keys: `QUIT_KEY` `CONTINUE_KEY` `BACK_KEY` `REWIND_KEY` and `PLAYPAUSE_KEY`
`manim-presentation` uses `cv2.waitKeyEx()` to wait for keypresses
## Run Example
Clone this repository
```
git clone https://github.com/galatolofederico/manim-presentation.git
cd manim-presentation
```
Create a virtualenv
```
virtualenv --python=python3.7 env
. ./env/bin/activate
```
Install `manim` and `manim_presentation`
```
pip install manim manim-presentation opencv-python
```
Render the example scene
```
manim -qh example.py
```
Run the presentation
```
manim_presentation Example
```
## Contributions and license
The code is released as Free Software under the [GNU/GPLv3](https://choosealicense.com/licenses/gpl-3.0/) license. Copying, adapting and republishing it is not only consent but also encouraged.
For any further question feel free to reach me at [federico.galatolo@ing.unipi.it](mailto:federico.galatolo@ing.unipi.it) or on Telegram [@galatolo](https://t.me/galatolo)