pvtools

pvtools offers a simplified and very limited Python interface to Paraview, aimed at straighforward extracting numerical data from datasets openable by Paraview.

pvtools runs under Python 2, and for everything to work, Paraview modules must be accessible in the Python interpreter. This means that PYTHONPATH and LD_LIBRARY_PATH should be extended by appropriate paths, see Python Scripting at Paraview wiki. Or you can use it under pvpython and pvbatch.

Currently, only legacy VTK files are supported (but only because I have not needed anything else).

Brief overview

Class pvtools.DataSource provides access to a data file. Data file can be opened and closed using __init__() and close() methods, or through a context manager:

with pvtools.dsopen("myfile.vtk") as datasource:
    # ...

When open, you can ask for a value of a variable at a given point (DataSource.probe()) or on a line (DataSource.line()). DataSource.boundary_line() gives you values at the intersection of the boundary with the plane.

Functions pvtools.to_dict() and pvtools.to_json() help when you deal with a set of similar queries.

For more info and examples, see the docstrings and tests.

License

pvtools package is licensed under MIT license.