A pythonic reader for TDMS files generated by LabVIEW
nitdms - A pythonic TDMS file reader
The main export from the
nitdms package is the TdmsFile class. Upon instantiation,
the reader loads the file into memory and discovers all of the file, group and channel
objects and respective properties. These objects and properties are dynamically
instantiated as attributes allowing easy access from within an interactive session
with tab completion such as Jupyter or bash.
Channel data is returned as a numpy ndarray, or WaveformDT if data in the file is from
LabVIEW's waveform data type. WaveformDT is a subclass of ndarray that mimics
the waveform data type.
LabVIEW's timestamp is stored as UTC in the TDMS file.
nitdms returns the timestamp
in the machine's local time zone consistent with LabVIEW and aligns with WaveformDT.
$ pip install nitdms
Within an interactive session with tab completion:
>>> from nitdms import TdmsFile >>> tf = TdmsFile(<file>) >>> data = tf.<group>.<channel>.data >>> t0 = tf.<group>.<channel>.wf_start_time >>> dt = tf.<group>.<channel>.wf_increment >>> group_property = tf.<group>.<property>
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