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A comprehensive graphical and command-line editor for creating, manipulating, and visualizing Lindenmayer systems (L-systems).
This project was initially developed as part of a university project.
L-systems (Lindenmayer systems) are a type of formal grammar introduced by biologist Aristid Lindenmayer in 1968. They are particularly useful for modeling plant growth and generating fractals. An L-system consists of:
- An alphabet of symbols that can be used to make strings
- An axiom (initial string) to start with
- A set of production rules that expand each symbol into a larger string of symbols
Through recursive application of these rules, complex structures can be generated from simple initial conditions.
- Interactive GUI for creating and editing L-systems
- Command-line interface for batch processing and automated workflows
- Real-time visualization of the L-system at different development levels
- Export capabilities to PS (PostScript) format for now
- Customizable rendering with adjustable parameters (colors, margins, dimensions)
- Save and load L-system definitions using .ls files
alr install lsystem_editor
- Ensure you have Ada and GtkAda installed. This project depends on GNAT Lib.
- Clone the repository: git clone https://github.com/Heziode/lsystem-editor.git
- Build with Alire: alr build or manually with make
Launch the graphical interface:
./bin/lsystem_editor # Or alr run
The GUI offers:
- A text editor area for defining L-system rules
- Controls to adjust the development level
- Real-time visualization of the L-system
- Export options
- Customization of colors and rendering parameters
For automated processing or batch operations:
lsystem_editor --no-gui [OPTIONS]
| Option | Long Form | Description |
|---|---|---|
| -i | --input=FILE | Input file containing an L-system definition |
| -o | --output=FILE | Output file to store an L-system definition |
| -e | --export=FORMAT | Export format for the L-system representation |
| -p | --export-file=FILE | Output file for the exported representation |
| -d | --develop=N | Number of development steps to apply |
| -w | --width=N | Width of the output representation |
| -h | --height=N | Height of the output representation |
| -b | --background-color=COLOR | Background color in hex format (e.g., #AABBCC) |
| -f | --foreground-color=COLOR | Foreground color in hex format (e.g., #AABBCC) |
| -mt | --margin-top=N | Top margin for rendering |
| -mr | --margin-right=N | Right margin for rendering |
| -mb | --margin-bottom=N | Bottom margin for rendering |
| -ml | --margin-left=N | Left margin for rendering |
L-system definitions are stored in .ls files with the following syntax:
<angle> [angle in degrees] <axiom> [initial string] <rules> [symbol] [replacement string] [symbol] [replacement string] ... </rules>
60.0 -F++F++F F F-F++F-F
Where:
- F means "draw forward"
- + means "turn left by angle"
- - means "turn right by angle"
- Text Editor: Define and edit your L-system
- Validate Button: Check if your L-system definition is valid
- Level Spinner: Adjust the development level
- Color Controls: Change foreground and background colors
- Export Options: Save visualizations
L-System Editor is distributed under the MIT License.
Copyright (c) 2018 Quentin Dauprat (Heziode)
See the LICENSE file for full details.