termigrad
A terminal-based ascii visualiser for the Gray Scott Reaction-Diffusion model.
Installation
pip install termigrad
termigrad -h
Features
- Simplistic, readable, highly extensible codebase
- Minimalist, colour ascii graphics
- Highly customisable parameters for the Gray Scott model
Usage
Run with no arguments to start the stripes preset. Press Ctrl-C to stop.
termigrad
Options
| Flag | Description |
|---|---|
--preset NAME |
Preset parameters to start with! Accepts any of coral, mooncake, spots, stripes, worms. Defaults to stripes. |
--feed F |
Override the preset feed rate with custom input. |
--kill K |
Override the preset kill rate with custom kill. |
--speed X |
Speed multiplier, intuitively 0.5 for half speed, 2 for double, 0 for unlimited. Defaults to 1.0. |
--no-colour |
Render in plain ASCII, without colour :<. |
--version |
Print the version and exit. |
Presets
Each preset is a feed/kill pair for the Gray-Scott model:
| Preset | Feed (F) | Kill (k) | Pattern |
|---|---|---|---|
spots |
0.0367 | 0.0649 | Spots, mitosis |
coral |
0.0545 | 0.0620 | Coral, branching |
worms |
0.0300 | 0.0620 | Worms, moving structures |
stripes |
0.0220 | 0.0510 | Stripes (default) |
mooncake |
0.0400 | 0.0600 | Moon cake |
The diffusion rates are fixed at dU = 0.160 and dV = 0.080.
For anything outside the presets, pass your own feed and kill rates:
termigrad --preset worms --feed 0.026
Colour
Output uses 24-bit colour where the terminal supports it, and falls back to
plain ASCII when stdout is not a TTY. Colour is also disabled automatically when
the NO_COLOR environment variable is set, or with --no-colour.
Requirements
Python 3.9 or newer, and numpy. Needs a terminal of at least 60x24 (I mean it should work no matter, but to see anything interesting requires a decently large terminal).
1 maintainer
Metadata
1 maintainer
Release files for termigrad 0.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| termigrad-0.2.0.tar.gz | 17.8 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| termigrad-0.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 35.6 kB
Release files / termigrad-0.2.0.tar.gz
| Download URL | termigrad-0.2.0.tar.gz |
|---|---|
| Size | 17.8 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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No |
| Uploaded via |
twine/7.0.0 CPython/3.14.8
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Release files / termigrad-0.2.0-py3-none-any.whl
| Download URL | termigrad-0.2.0-py3-none-any.whl |
|---|---|
| Size | 17.7 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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No |
| Uploaded via |
twine/7.0.0 CPython/3.14.8
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