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Python version of Labella.js

Project description
========== is a Python 3 clone of
[labella.js]( which supports all the
features of labella.js and addionally can generate TikZ PDF images for use in

**Note:** This package is for the most part a direct translation of the
original [labella.js]( code to Python 3.
All the credit for the labella code goes to Krist Wongsuphasawat
([@kristw](, I only added the code which generates
PDF output. also includes code from
[d3]( for axis scaling, and
[WebCola]( for the VPSC code (label
placement optimization).

I wrote this for multiple reasons, the most important of which is that I
wanted to incorporate label graphs like the ones generated by
[labella.js]( in PDF documents, but
wasn't satisfied with the PDF output generated by SVG-to-PDF converters.
Additionally, it seemed like a fun way to learn some more Javascript, and
learn about how [labella.js]( works.

These screenshots show the PDF output generated by (converted to

Time scale:
![Example 3 from d3kit-timeline](examples/timeline_kit_3.png)

Linear scale:
![Example 5 from d3kit-timeline](examples/timeline_kit_5.png)

Using is extremely similar to using
[labella.js]( See the
[examples](examples) directory for examples of how to use These
examples are translations of the examples included in labella.js and in

For ease of use only the Timeline interface is implemented, which works
similar to [d3kit-timeline]( Here is
a minimal working example for exporting to PDF:

>>> from labella.scale import LinearScale
>>> from labella.timeline import TimelineTex
>>> tl = TimelineTex([
{'time': 1, 'text': 'Minimal'},
{'time': 2, 'text': 'Working'},
{'time': 3, 'text': 'Example'}
], options={'scale': LinearScale()})
>>> tl.export('minimal.tex')

See also the documentation [here](docs).


Clone the repository and then use:
python install
python install --user

**Note:** requires a working LaTeX distribution for both SVG and
PDF output (see also [the documentation](docs/)), and has only been tested on


Gertjan van den Burg ([@GJJvandenBurg](

Licensed under the [Apache License Version

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