PyFVS adds a number of enhancements to the existing FVS API and control routines.
PyFVS supports two levels of access to the FVS API, a low level API, closely aligned with the core Open-FVS API, as well as a Python class with additional functionality.
The FVS interface has evolved over time as computer technology improved and the user base expanded and became more and more sophisticated in the application of forest growth models. Other growth model projects began to release and support shared libraries (e.g. DLL's) to enable tighter integration with related software systems. Open-FVS was established, at least in part, to support the development of a more open growth modeling infrastructure. Users and maintainers began adapting the core FVS code base to a more flexible shared library and application programing interface design, while still maintaining the legacy command line and GUI tools that many users require.
The Open-FVS API includes a number of subroutines for executing and FVS, interogating the system at runtime, and for bi-directional data I/O. This API has been exposed as a shared library for use in R, Python, VBA, .NET, and many other programming languages. PyFVS exposes all these functions and more. More information on this portion of the API is available on the Open-FVS wiki.
The canonical Python use case would be the FVS class, pyfvs.fvs.FVS. This class
wraps the step API and provides access to all lower level data and subroutines.
An FVS object is initialized with the desired variant abbreviation. The methods, properties, and attributes of the returned FVS instance are then used to initialize, execute, and retreive data for on or more growth projections.
PyFVS includes a module for creating FVS keyword files as a collection of keyword objects.
- use_fast_age
- use_fvs_morts