BabelScan is a format independent data structure for holding different types of data from a scan file
Project description
BabelScan
BabelScan is a format independent data structure for holding different types of data from a scan file.
Various file formats are supported, including Nexus and HDF formats, as well as older ASCII file formats. BabelScan is implicitly Lazy Loading and only loads data when requested, making it fast and lightweight.
Data fields are stored in a format independent way, with the abiliity to find close matches to a requested field.
3D datasets such as images from detectors are specially handelled and contain several special functions.
If packages lmfit and matplotlib are available, fitting and plotting options are included in the BabelScan object.
A FolderMonitor class allows loading of specific files in numeric order
An Instrument class holds specific configuration for generation of bespoke BabelScan objects.
You can read the documentation here!
Usage
# Python script
import babelscan
scan1 = babelscan.file_loader('12345.nxs')
scan2 = babelscan.file_loader('i16_1234.dat')
exp = babelscan.FolderMonitor('/path/to/files')
scan3 = exp.scan(0) # returns latest scan in directory
scans = scan1 + scan2 + scan3 # creates MultiScan object that combines the 3 datasets
# Folder monitor:
mon = babelscan.FolderMonitor('/some/folder', **options)
scan = mon.scan(0) # creates scan from latest file in folder
# intrument configuration file
i16 = babelscan.instrument_from_config('config_files/i16.config')
experiment = i16.experiment('/data/folder')
scan = experiment.scan(12345)
print(scan) # displays I16 metadata by default
Installation
requirements: numpy, h5py, imageio, [optional: matplotlib, lmfit]
available from: https://github.com/DanPorter/babelscan
pip install git+https://github.com/DanPorter/babelscan.git
Examples
import babelscan
scan = babelscan.file_loader('12345.nxs')
print(scan) # prints scan information
x = scan('axes') # finds default xaxis in Nexus files
y = scan('signal') # finds default yaxis in Nexus files
title = scan.title() # generates a plot title
im = scan.image(0) # returns first detector image if scan contains 3D data
See the included example_*.py files for more examples.
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