Skip to content

NEWS-2.0.md

Latest commit

 

History

History
92 lines (56 loc) · 2.79 KB

NEWS-2.0.md

File metadata and controls

92 lines (56 loc) · 2.79 KB

What is new and what has changed in pyLife-2.0

This document lists changes and new features of pyLife-2.0.

General changes

In pyLife-1.x the individual modules often where not playing together really well, sometimes we had even the same concept multiple times. For the pyLife-2.0 release we aim to improve that. The concept of the accessor classes will be used more extensively.

New features

Rainflow counting

The rainflow counting module has been vastly redesigned in order to get more flexibility. New possibilities are:

  • Four point rainflow counting

  • Recording of the hysteresis loop information is in a separate class to allow the recording in a customized way.

See docs of the rainflow counting module for details.

Restructuring the code

We are now using PyScaffold to handle the packaging files. That's why we have restructured the code base. Basically the only notable things that have changed is that all the code has been moved from pylife to src/pylife and the documentation has been moved from doc/source to docs. Both are the common locations for Python 3.x packages.

Changes that affect your code

  • Strength scattering is now stored as TS and TN, no longer by 1/TS and 1/TN. This only concerns the naming, the underlying values are still the same. With this we are following the newer conventions in DIN 50100:2016-12.

  • self._validate() is no longer called with arguments. The arguments obj and validator are no longer needed. obj is now accessible by self._obj. The methods of DataValidator are now accessible as methods of PylifeSignal directly.

  • Signal accessor class names are no longer suffixed with Accessor

  • The PyLifeSignal is promoted to the toplevel of the pylife package. That means that you have to change

    from pylife import signal

...

class Foo(signal.PylifeSignal):
    ...

    to

    from pylife import PylifeSignal

...

class Foo(PylifeSignal):
    ...

  • The name of a rainflow matrix series is no longer frequency but cycles.

  • The names of the functions scatteringRange2std and std2scatteringRange have been adjusted to the naming conventions and are now scattering_range_to_std and std_to_scattering_range.

  • The accessor class CyclicStress with the accessor cyclic_stress is gone. Use pylife.LoadCollective instead.

Variable names

Currently we are brainstorming on guidelines about variable names. See the article in the docs about it. It will be continuously updated.