Tool to draw the templates of chaotic attractors.
CATE stands for Chaotic Attractor TEmplate.
cate is a libre software tool (licensed under GNU Lesser General Public License v3.0 only) to draw the templates of chaotic attractors.
Chaotic attractors are solutions of deterministic processes, of which the topology can be described by templates. We consider templates of chaotic attractors bounded by a genus-1 torus described by a linking matrix.
This tool first validates a linking matrix by checking continuity and determinism constraints. The tool then draws the template corresponding to the linking matrix, and optimizes the compactness of the representation. The representation is saved as a Scalable Vector Graphics (SVG) file.
cate is available as a regular Python package. It hence can easily be installed with pip.
For more details on how to install a Python package, one can refer to https://packaging.python.org/tutorials/installing-packages/
The latest stable (recommended) version can be installed with the following command (assuming pip is installed):
pip install cate
It is recommended to use a virtual environment to install cate. Again, one can refer to https://packaging.python.org/tutorials/installing-packages/ to get a more comprehensive overview.
On a typical Linux environment, the typical commands to use would be:
python3 -m venv cate_venv source cate_venv/bin/activate pip install cate
This will create a new virtual environment in the cate_venv subdirectory, and configure the current shell to use it as the default python environment. This will then install cate in this new environment without interfering with the already installed packages.
One would then exit this environment either by exiting the current shell, or by typing the command deactivate.
Further uses of cate only require to activate the virtual environment with the following command:
The purpose of the cate is to draw template from a given linking matrix. For instance, the matrix
describes a template made of five strips. The matrix has to be written using JSON format as follows in a file, for instance: 5x5_001.json
[[2, 1, 0, 0, 0], [1, 1, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 1, 1], [0, 0, 0, 1, 2]]
A simple example of usage could be: cate file.json
cate examples/5x5_001.json [ INFO ] Input matrix [ INFO ] [2, 1, 0, 0, 0] [ INFO ] [1, 1, 0, 0, 0] [ INFO ] [0, 0, 0, 0, 0] [ INFO ] [0, 0, 0, 1, 1] [ INFO ] [0, 0, 0, 1, 2] [ INFO ] Starting constructing the tree [ INFO ] Maximum possible template length: 2 [ INFO ] Finished constructing the tree [ INFO ] Starting creation of the SVG template [ INFO ] Shortest template [ INFO ] Level 1: (0, 1), (3, 4) [ INFO ] Finished creation of the SVG template
The output is a SVG file (template.svg) containing the template.
The comprehensive list of the supported options and their usage is available by typing cate -h.
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