PICOcode.DataHandling

class Event(rundirectory, eventnum, *args, data_series=None, no_err=True, verbose=True)

Load raw data from a PICO event.

Data is loaded from files in rundirectory and/or rundirectory/eventnum. Which data is loaded depends on the loadoptions argument. Each property has at minimum the loaded attribute, which indicates whether it was successfully loaded.

Parameters:

rundirectorystr

May be either the run ID if the run data is in a known location (pointed to by the PICOcode.conf file), or the full path to the run data.

eventnumint or str

The event number for which data is being requested.

*argstuple of str

Comma-separated optional arguments which specifies the data being requested. Minimum one required. May include any of the following:

event

fastDAQ

slowDAQ

temperature

PLC

DAQsettings

rundata

camdata

images

data_series{“40l-19-data”, “30l-16-data”, “2l-16-data”}

The name of the data series. Used when searching for data when rundirectory is not a full path.

no_errbool, default=False

Whether to suppress errors. Mainly useful during processing, when an error may disrupt all other processing.

verbosebool, default=True

Whether to print extra information when loading data.

Examples

>>> event = Event("20200721_0", 22, 'fastDAQ', 'slowDAQ')
# The following accomplishes the same thing.
>>> event = Event("20200721_0", 22, ['fastDAQ', 'slowDAQ'])
>>> event.slowDAQ.loaded
True
>>> event.fastDAQ.loaded
True
>>> event.PLC.loaded
False

>>> import matplotlib.pyplot as plt
>>> plt.plot( event.slowDAQ.elapsed_time, event.slowDAQ.PT4 )
>>> plt.show()

Attributes:

runIDstr: The name of the run.
eventnumint: The event number within the run.
rundirectorystr: The directory in which the run data was found. Several locations are checked.
data_seriesstr: Name of the data series. Should be of the form ‘30l-16-data’ or ‘40l-19-data’.
eventProperty: Info about the event, e.g. livetime, pressure setpoint, etc.
fastDAQProperty: Data collected by the fastDAQ system, contained in fastDAQ_?.bin files. Includes piezo and Dytran signals.
slowDAQProperty: Data collected by the pressure cart PLC, contained in the slowDAQ.txt file. Includes signals from pressure and position transducers.
temperatureProperty: Data collected by the temperature PLC, contained in the temperature.txt file. Includes data from the RTDs and chillers.
PLCProperty: Data from the pressure cart PLC, which has been logged by the main DAQ via modbus. The logging here is slower than that recorded by the slowDAQ attribute.
DAQsettingsProperty: Reads the DAQ30l_Setup.xml file, which contains data about the settings for the run, e.g. run type, compression time between events, etc.
rundataProperty: Reads the runID.txt file in the data directory, which contains data about the run.
camdataProperty: Currently unimplemented.
imagesProperty: Load images into memory.

LoadReconFile: alias of <module ‘PICOcode.DataHandling.LoadReconFile’ from ‘/home/pico/Scripts/picocode-docs/PICOcode/PICOcode/DataHandling/LoadReconFile.py’>

PICOcode.DataHandling package