A tool to create animated graph visualizations, based on graphviz.
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GraphvizAnim is a tool to create simple animated graph visualizations; it is just a proof of concept, aimed mainly at teaching purposes. It is based on Graphviz for the graph rendering part and on ImageMagick for the animated gif generation. You can run the heap sort animation on-line using binder.
A graph animation is just a sequence of steps, a step is in turn one or more actions such as: add, hilight, label, unlabel or remove a node, and add, hilight, or remove an edge. Animations can be built by invoking suitable methods of a
gvanim.Animationobject (in a Python program), or by parsing a simple text file (that, in turn, can be generated by a program in any language).
The examples folder contains few instances of such approaches. After installing the package with
python setup.py install, or using
pip install GraphvizAnim
you can generate an animated depth first visit (in a 3-regular random graph of 6 nodes) by running
or you can generate the simple animation described in simple.txt as
python -m gvanim examples/simple.txt simple
You can generate an Erdős–Rényi graph (with 10 nodes and edge probability 1/10) by running
cd examples gcc -o er er.c ./er | python -m gvanim er
Finally, you can obain an interactive visualization of the heap sort algorithm using Jupyter by running
cd examples jupyter notebook heapsort.ipynb