Lpy User Guide

L-systems were conceived as a mathematical framework for modeling growth of plants. L-Py is a simulation software that mixes L-systems construction with the Python high-level modeling language. In addition to this software module, an integrated visual development environment has been developed that facilitates the creation of plant models. In particular, easy to use optimization tools have been integrated. Thanks to Python and its modular approach, this framework makes it possible to integrate a variety of tools defined in different modeling context, in particular tools from the OpenAlea platform. Additionally, it can be integrated as a simple growth simulation module into more complex computational pipelines.


    1. Boudon, C. Pradal, T. Cokelaer, P. Prusinkiewicz, C. Godin. L-Py: an L-system simulation framework for modeling plant architecture development based on a dynamic language. Frontiers in Plant Science, Frontiers, 2012, 3 (76), doi: 10.3389/fpls.2012.00076.

For more details on Lsystems, see also:

    1. Boudon, T. Cokelaer, C. Pradal and C. Godin, L-Py, an open L-systems framework in Python, FSPM 2010

L-Py was inspired by Lstudio/cpfg-lpfg defined by P. Prusinkiewicz et al. See also

    1. Prusinkiewicz et al., 89, The algorithmic Beauty of Plants, Springer-Verlag.
    1. Prusinkiewicz. Graphical applications of L-systems. Proceedings of Graphics Interface ‘86, pp. 247-253.
    1. Prusinkiewicz, R. Karwowski, and B. Lane. The L+C plant modelling language. In Functional-Structural Plant Modelling in Crop Production, J. Vos et al. (eds.), Springer, 2007.