===== IST . tech =====
==== Note ====

vip.sweep_tracker = {}
for k in ['Prim_sweep', 'Scnd_sweep']:
    vip.sweep_tracker[k] = 0

vip.sweep_tracker[k] += 1

import numpy as np

from matplotlib import cm as color_map
import matplotlib.pyplot as plt

#from mpl_toolkits.mplot3d import Axes3D
#from matplotlib.ticker import LinearLocator, FormatStrFormatter

-----
def tic:
return get_time()

def toc(tic)
return get_time() - tic

---

vip._TIC = tic()

def bn_total_runtime(vip):
runtime_seconds = toc(vip._TIC)
...
return message

def bn_tic(vip):
   vip._tic = tic()
   
def bn_toc(vip, toc = None):
   try:
   Dt = toc(vip._tic)
   message = "Elapsed time:\n\n"+Dt
   except YYY:
   message = "You need a tic to make a toc."
   
   vip.GUI_feedback(message)
   
tic toc _ total runtime
_ _ _ check connections

-----

def bn_check_connections(vip):
message = "Connected instruments:\n"
for instr_type in X:
  for instr_name in instr_type:  
      if vip.is_connected(instr_name):
          message += instr_name+4*" "
      message += "\n"
          
vip.GUI_feedback(message)

-----

* export plots 

, figsize=(8, 6), dpi=80, facecolor='w', edgecolor='k'

* they all get an "adopt" and a "run this now" button

* try PyQt Designer

* x = y if CLAUSE else z

**todo**

- In the scientific computing part (measurement functions), possibly switch from list to numpy.ndarray (i.e. homogeneous, performance-optimized lists)

Put the item-select dm into the class tab (just above the item tabs)

Put those one after the other
- 1. 'Do sweep' checkbox instead of 'No measurement'
- 2. 'Run script before sweep step' -> 'Run script before each measurement'
- 3. 'Run script' button

- ??? use try-except-else (i.e. reduce try class)

- When there's time, make a clear import dependency graph and redo it

**conventions**

- 80 chars (not strictly enforced)
- line break -> comma (in dicts)
- when in question, more whitespaces
- ' for keys, " for messages 
- from m import f (in case only f is used here. otherwise, import all of m)
- naming vars with 4 chars followed by underlines and new 4 chars, e.g. sour_freq, VNA__freq
- one char typing annotation possible, e.g. s_info_line for a string

=== sci ===
[[https://en.wikipedia.org/wiki/In-phase_and_quadrature_components | In-phase and quadrature components]]

== Abbreviations ==
DSP ... Digital signal processing 
(Wikipedia: 
[[https://en.wikipedia.org/wiki/Digital_signal_processing | Digital signal processing]])

=== Reference ===
Wikipedia:
[[https://en.wikipedia.org/wiki/Digital_signal_processing | Digital signal processing]]

-----
=== Related ===
[[Nikolajs notebook]], [[On electronics . note]]