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#!/usr/bin/python3 | |
#-*- coding: utf-8 -*- | |
# License: This code is released as public domain. | |
import time | |
import numpy as np | |
import tkinter as tk | |
X_SIZE, Y_SIZE = 200, 200 |
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#!/usr/bin/python3 | |
#-*- coding: utf-8 -*- | |
""" | |
Do you have some "outlier" noise in your experimental data, e.g. due to "hot pixels" in spectrometer? | |
Run | |
python3 rm_outliers.py my_file.dat | |
and the new "my_file.dat_corrected.dat" will be free of these errors. |
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#!/usr/bin/env python | |
#-*- coding: utf-8 -*- | |
""" | |
Program accepts two parameters: image1 image2 | |
Both files have to have the same dimension. Any format accepted by scipy is possible. | |
They may be grayscale or RGB, in the latter case the R+G+B value is taken. |
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plotstyle = "basis" | |
#plotstyle = "amplitude" | |
decimatex = 20 | |
ncomponents = 5 | |
a = ys[:, ::decimatex] | |
xs = xs[:, ::decimatex] | |
U, s, V = np.linalg.svd(a, full_matrices=True) | |
if plotstyle=="basis": | |
for x, y, label in zip(xs[:ncomponents], V[:ncomponents], range(ncomponents)): |
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fw=int(len(xs[0])/30) # filter width | |
fl=int(len(xs[0])/20) # filter limit: minimum position of the Fabry-Pérot peak in correlation function | |
skippoints = 0 # sometimes the first point is some header | |
def nGaN(energies): | |
## returns index of refraction in GaN according to [Tisch et al., JAP 89 (2001)] | |
eV = [1.503, 1.655, 1.918, 2.300, 2.668, 2.757, 2.872, 3.006, 3.136, 3.229, 3.315, 3.395, 3.422] | |
n = [2.359+0.08, 2.366+0.04, 2.383+0.02, 2.419, 2.470, 2.486, 2.511, 2.549, 2.596, 2.643, 2.711-.01, 2.818-.045, 2.893-.100] | |
return np.interp(energies, eV, n) |
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#!/usr/bin/python3 | |
import matplotlib.pyplot as plt | |
import numpy as np | |
import numpy.linalg as la | |
width, n= 1., 500 ## width of the 1D quantum system, and number of points | |
nplot = 10 ## number of quantum states to plot | |
h = 1e-4 ## our definition of "Planck constant" determines the density of states | |
psiscale = .01 ## for plotting only: approximate matching of probability and potential scales |
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#!/usr/bin/python3 | |
#-*- coding: utf-8 -*- | |
import numpy as np | |
import scipy.constants as sc | |
import matplotlib.pyplot as plt | |
import matplotlib |
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#!/usr/bin/env python | |
#-*- coding: utf-8 -*- | |
# Supporting Python 3 | |
import sys, os, re | |
try: bibtexdb = open(sys.argv[1]).read() | |
except: print("Error: specify the file to be processed!") | |
if not os.path.isfile('journalList.txt'): |
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#!/usr/bin/env python | |
#-*- coding: utf-8 -*- | |
""" | |
Download and unpack the Hipparcos star catalog from www.astronexus.com/files/downloads/hygfull.csv.gz | |
Run in python to show interactive sky map with apparent star magnitude and approximate colour. | |
About 90000 stars are plotted within a second, you can pan and zoom the view. | |
Run with "--interactive no" to generate a big PDF file for printing. I could not find anything with this |
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#!/usr/bin/env python | |
# | |
# Makes a wav file out of owon oscilloscope waveform save file. | |
# Tested with SDS6062 only. | |
# | |
# Used: | |
# http://bikealive.nl/owon-bin-file-format.html and | |
# http://bikealive.nl/tl_files/EmbeddedSystems/Test_Measurement/owon/OWON%20Oscilloscope%20PC%20Guidance%20Manual.pdf | |
# |
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