Michael H. meresmclr

meresmclr / CMakeLists_hdf5.txt

Created September 5, 2016 02:16

basic HDF5 Cmake

	cmake_minimum_required (VERSION 3.1) #yes, CMake 3.1 is required
	project(myproj C)

	# https://gist.github.com/scienceopen/9f88bbe4841ea67aa692f7395bb38bfe

	add_executable(myprog ../myprog.c)

	find_package(HDF5 REQUIRED)
	include_directories(${HDF5_INCLUDE_DIR})
	target_link_libraries(myprog ${HDF5_C_LIBRARIES})

meresmclr / expanduser.m

Created September 2, 2016 18:49

Like os.path.expanduser() but for Matlab/Octave

	function expanded = expanduser(p)
	%%
	% Examples:
	%
	% isunix==1 (linux & cygwin) example:
	% expanduser('~/Downloads/foo')
	% ans = /home/joespc/Downloads/foo
	%
	% ispc==1 example (Windows)
	% expanduser('~/Downloads/foo')

meresmclr / wpa_cli-success.txt

Last active September 2, 2016 18:29

Successful Wifi connection output from wpa_cli

meresmclr / wpa_supplicant.conf

Created September 2, 2016 18:18

addition for Boston University Wifi network

	network={
	ssid="BU (802.1x)"

	key_mgmt=WPA-EAP
	pairwise=CCMP TKIP
	eap=TTLS PEAP MSCHAPV2
	identity="Your BU login"
	password="your Kerberos Password: be aware others can read this file!"
	phase2="auth=MSCHAPV2"
	}

meresmclr / login_stats.sh

Created September 2, 2016 06:19

	#!/bin/bash

	# reference: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=23440

	let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
	let secs=$((${upSeconds}%60))
	let mins=$((${upSeconds}/60%60))
	let hours=$((${upSeconds}/3600%24))
	let days=$((${upSeconds}/86400))
	UPTIME=`printf "%d days, %02dh%02dm" "$days" "$hours" "$mins" `

meresmclr / pyephem_sunrise_sunset.py

Created September 2, 2016 05:20

	import ephem
	import datetime

	now = datetime.datetime.now() #get current time

	Boston=ephem.Observer()
	Boston.pressure = 1010 # millibar
	Boston.temp = 25 # deg. Celcius
	Boston.horizon = 0
	Boston.lat='42.3462'

meresmclr / matlab_lossless_video.m

Created September 2, 2016 05:16

make a lossless motion jpeg 2000 video with matlab

	v = VideoWriter('test.mj2','Motion JPEG 2000');
	v.LosslessCompression = true; v.FrameRate=5;
	open(v)
	f=figure; title('line'), ylabel('amplitude'),xlabel('index')
	pause(0.2) %let plot wake up
	for i=1:.05:3;
	line(0:.01:1,(0:.01:1).^i)
	im = getframe(f);
	writeVideo(v,im)
	end

meresmclr / pyramid2d.m

Created September 2, 2016 05:12

makes 2-D pyramid phantom

	do:
	N = 256;
	MinVal = 0;
	MaxVal = 2^16 -1;

	data = nan(N);
	temp = uint16(MinVal:round((MaxVal-MinVal)/(N/2)):MaxVal);
	for i = 1:N/2
	data(i,i:end-i+1) = temp(i);
	data(i:end-i+1,i) = temp(i);

meresmclr / matlab_animation_example.m

Last active September 2, 2016 05:10

example animated movie in Matlab or Octave

	%% create data, 25 frames of 512x512 pixels
	data = rand(512,512,25);

	%% create blank image
	img = imagesc(rand(512));
	ht = title(''); % to show frame number

	%% for loop to play "movie"
	for i = 1:25
	set(img,'cdata',data(:,:,i)) % update latest frame

meresmclr / findbig.sh

Created September 2, 2016 05:01

	#!/bin/sh
	#
	# finds N biggest directories.
	# Alternative is "ncdu" a graphical biggest file program

	\du -hd1 $1 \| sort -h \| head -n 8