adi-reader 0.0.1

Reading LabChart recorded data

adinstruments_sdk_python

SDK for ADIstruments files in Python

A slightly more flushed out Matlab version can be found here https://github.com/JimHokanson/adinstruments_sdk_matlab

Use this code to read .adicht (Labchart) files into Python.

Currently only works for Windows.

Interfacing with the ADIstruments DLL is done via cffi: https://cffi.readthedocs.io/en/latest/

Setup

Running the code might require compiling the cffi code. This requires running cffi_build.py in the adi package. This might require installing cffi as well as some version of Visual Studio. The currently released code was compiled for Python 3.6 on Visual Studio 2015 or 2017 (not sure which)

For upgrading to 3.7 I installed Python 3.7. Within the interpreter I ran the following

import subprocess
import sys

#https://stackoverflow.com/questions/12332975/installing-python-module-within-code
def install(package):
    subprocess.call([sys.executable, "-m", "pip", "install", package])

install("cffi")

import os
#This would need to be changed based on where you keep the code
os.chdir('G:/repos/python/adinstruments_sdk_python/adi')

exec(open("cffi_build.py").read())

Test code

    import adi
    f = adi.read_file(r'C:\Users\RNEL\Desktop\test\test_file.adicht')
    # All id numbering is 1 based, first channel, first block
    # When indexing in Python we need to shift by 1 for 0 based indexing
    # Functions however respect the 1 based notation ...

    # These may vary for your file ...
    channel_id = 2
    record_id = 1
    data = f.channels[channel_id-1].get_data(record_id)
    import matplotlib.pyplot as plt
    plt.plot(data)
    plt.show()

Improvements

This was written extremely quickly and is missing some features. Feel free to open pull requests or to open issues.