From cba83e780a9350eb45eb1c2f09fc87f5d389e1ac Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.net>
Date: Sun, 20 May 2018 15:54:03 +0200
Subject: Move documentation and simulation stuff to its own subdir

---
 firmware/ltspice_plot.py | 137 -----------------------------------------------
 1 file changed, 137 deletions(-)
 delete mode 100755 firmware/ltspice_plot.py

(limited to 'firmware/ltspice_plot.py')

diff --git a/firmware/ltspice_plot.py b/firmware/ltspice_plot.py
deleted file mode 100755
index 38145d9..0000000
--- a/firmware/ltspice_plot.py
+++ /dev/null
@@ -1,137 +0,0 @@
-#!/usr/bin/env python3
-
-from matplotlib import pyplot as plt
-import numpy as np
-import ast
-import re
-import csv
-import math
-
-MULTIPLIERS = {
-    'a': 1e-18,
-    'f': 1e-15,
-    'p': 1e-12,
-    'n': 1e-9,
-    'u': 1e-6,
-    'µ': 1e-6,
-    'm': 1e-3,
-    'k': 1e3,
-    'M': 1e6,
-    'G': 1e9,
-    'T': 1e12,
-    'P': 1e15,
-    'E': 1e18,
-}
-
-def load_ltspice_csv(filename):
-    with open(filename) as f:
-        reader = csv.DictReader(f, delimiter='\t')
-        fieldnames = reader.fieldnames
-        return np.array([ [float(field) for field in line.values()] for line in reader ]), fieldnames
-
-def parse_unit(val, **units):
-    for unit, scale in units.items():
-        if val.endswith(unit):
-            val = val[:-len(unit)]
-            break
-    else:
-        scale = 1.0
-
-    if val[0] == '!':
-        val = '-'+val[1:]
-
-    try:
-        return float(val)*scale
-    except:
-        match = re.match(r'(-?[0-9]*(\.[0-9]+)?)([afpnuµmkMGTPE])', val)
-        if not match:
-            raise ValueError(f'Invalid value: {val}')
-
-        val, _, suffix = match.groups()
-        return float(val) * MULTIPLIERS[suffix] * scale
-
-def parse_range(text, sep='-', **units):
-    if text:
-        start, _, end = text.partition(sep)
-        return parse_unit(start, **units), parse_unit(end, **units) if end else math.inf
-    else:
-        return 0, math.inf
-
-def apply_style(ax):
-    ax.spines['top'].set_visible(False)
-    ax.spines['right'].set_visible(False)
-    ax.spines['bottom'].set_color('#08bdf9')
-    ax.spines['left'].set_color('#08bdf9')
-    ax.tick_params(axis='x', colors='#01769D')
-    ax.tick_params(axis='y', colors='#01769D')
-    ax.xaxis.label.set_color('#01769D')
-    ax.yaxis.label.set_color('#01769D')
-    ax.grid(color='#08bdf9', linestyle=':')
-
-
-if __name__ == '__main__':
-    import argparse
-    import os
-    parser = argparse.ArgumentParser()
-    parser.add_argument('input_txt', action='store', nargs='+', help='LTSpice .txt data export')
-    parser.add_argument('-o', '--output', help='Output SVG file. Defaults to <input file name>.svg.', default=None, nargs='?')
-    parser.add_argument('-s', '--span', default=None, help='Time span to plot, format: [time][unit]{-[time][unit]}')
-    parser.add_argument('-c', '--channels', default=[None], action='store', nargs='*', help='List of channels to plot. Comma-separated 0-based indices or signal names. Use multiple times for vertically-stacked subplots.')
-    parser.add_argument('-x', '--xlabel', default='$t\;(\mu s)$', help='Time axis label')
-    parser.add_argument('-y', '--ylabel', default=[None]*100, action='store', nargs='*', help='Y axis labels. Use multiple times for subplots.')
-    parser.add_argument('-r', '--yrange', default=[None]*100, action='store', nargs='*', help='Value ranges for y axes.  Use multiple times for subplots. Use ! instead of prefix minus sign.')
-    parser.add_argument('-t', '--timescale', default='1us', help='Time axis unit')
-    parser.add_argument('--subplot-title', default=[None]*100, action='store', nargs='*', help='Subplot titles')
-    parser.add_argument('-f', '--figure-size', default='8x6', help='Plot size in [x]x[y] inches')
-    args = parser.parse_args()
-
-    start, end = parse_range(args.span, s=1)
-    timescale = parse_unit(args.timescale, s=1)
-
-    inputs = []
-    for filename in args.input_txt:
-        data, fieldnames = load_ltspice_csv(filename)
-        data = data[(data[:,0] > start) & (data[:,0] < end)]
-        data[:,0] = (data[:,0] - start) / timescale
-        inputs.append((data, fieldnames))
-
-    fig, axs = plt.subplots(len(args.channels), 1, squeeze=False, sharex=True, figsize=parse_range(args.figure_size, sep='x'))
-    
-    for row, (ax, channelspec) in enumerate(zip(axs.flatten(), args.channels)):
-        channels = channelspec.split(',') if args.channels else range(0, 1000)
-
-        apply_style(ax)
-
-        n_plotted = 0
-        name_plotted = 'V(out)'
-        for k, (data, fieldnames) in enumerate(inputs):
-            for i, name in enumerate(fieldnames[1:], start=1):
-                if not any(x in channels for x in [i, f'{i}', f'{k}:{i}', f'{name}', f'{k}:{name}']):
-                    print(f'Not plotting channel {i} "{name}"')
-                    continue
-                print(f'Plotting channel {i} "{name}"')
-                ax.plot(data[:,0], data[:,i], color='#fe3ea0')
-                n_plotted += 1
-                name_plotted = name
-
-        if args.yrange[row]:
-            ax.set_ylim(parse_range(args.yrange[row], A=1, V=1))
-
-        if args.ylabel[row]:
-            ax.set_ylabel(args.ylabel[row])
-        else: # Guess label
-            unit = {'V': 'V', 'I': 'A'}[name_plotted[0]]
-            if n_plotted == 1:
-                ax.set_ylabel(f'${name_plotted}\;({unit})$')
-            else:
-                ax.set_ylabel(f'${name_plotted[0]}\;({unit})$')
-
-        if args.subplot_title[row] not in (None, '<none>'):
-            ax.set_title(args.subplot_title[row], color='#fe3ea0', fontname='Fredoka One')
-
-        outfile = args.output if args.output else os.path.splitext(args.input_txt[0])[0] + '.svg'
-        
-    if args.xlabel:
-        axs.flatten()[-1].set_xlabel(args.xlabel)
-    plt.tight_layout()
-    fig.savefig(outfile)
-- 
cgit