Mpltern is a Python plotting library based on [Matplotlib](https://matplotlib.org), specifically designed for [ternary plots](https://en.wikipedia.org/wiki/Ternary_plot). Mpltern is implemented as a new projection for Matplotlib, with introducing e.g. new `Transform` classes for ternary plots. The followings are the features of mpltern when compared with other ternary-plot libraries:
- Many things one expects essentially possible using Matplotlib can be done also in mpltern, without e.g. ternary-to-Cartesian conversions on the user side
- For the same plotting styles, mpltern offers the same or very similar method names as Matplotlib does; you do not need to learn many new commands in addition to those for Matplotlib
- Tick markers, tick labels, and axis labels are automatically positioned with reasonable paddings inherited from Matplotlib; this allows users e.g. faster production of ternary plots with publication quality
- Easy combination with normal Matplotlib plots
- Easy application of [seaborn](https://seaborn.pydata.org) styles
- Working also in Matplotlib interactive modes inside e.g. [Jupyter](http://jupyter.org) notebooks
Details of mpltern are found in https://yuzie007.github.io/mpltern.