KPB3rd’s gists

KPB3rd / installJupyter.txt

Last active March 24, 2024 02:19

Install Jupyter on Mac

	// Install conda
	mkdir -p ~/miniconda3
	curl https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-arm64.sh -o ~/miniconda3/miniconda.sh
	bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3
	rm -rf ~/miniconda3/miniconda.sh
	~/miniconda3/bin/conda init bash
	~/miniconda3/bin/conda init zsh

	// Make virtual env
	conda create -n jupyter python ipython jupyterlab nodejs numpy matplotlib scipy ipywidgets

KPB3rd / Python script location dir

Created September 30, 2022 14:43

Get the directory location where the python script file is


	# get the location of the script, NOT the location we are running from
	# Consider if the code is run by python or exe
	# determine if application is a script file or frozen exe
	if getattr(sys, 'frozen', False):
	dir_path = os.path.dirname(sys.executable)
	elif __file__:
	dir_path = os.path.dirname(os.path.realpath(__file__))

KPB3rd / constexpr in template.cpp

Created August 24, 2022 21:25

Using constexpr in templated func

	template <typename T>
	func() {
	if constexpr(std::is_same<T, TheTypeIWant>::value) {
	}
	else {
	}

	}

KPB3rd / recursive_remote_git_update

Last active September 8, 2022 20:29

Update git submodule remotes

	find -wholename "*/.git/config" -type f -exec sed -i 's/<insertoldstring>/<insertnewstring/g' {} +
	git submodule sync

KPB3rd / bezier.cpp

Created July 19, 2022 16:06

Bezier code for path planning


	// https://github.com/Rezonality/mutils/blob/6adc3fa9d160f455092637032cb6fcd6162d0b93/include/mutils/math/math_utils.h#L124
	template <typename T>
	inline T Bezier(float t, T p0, T p1, T p2, T p3) {
	return std::pow(1 - t, 3) * p0 + 3 * std::pow(1 - t, 2) * t * p1 + 3 * (1 - t) * (t * t) * p2 + std::pow(t, 3) * p3;
	}

	template <typename T>
	inline T BezierPt(float t, T p0, T p1, T p2, T p3)
	{

KPB3rd / Simple racing threading.cpp

Created April 15, 2022 15:14

Example of using 2 threads and stopping them if the other finished

	std::atomic<bool> is_from_start_solved(false);
	std::atomic<bool> is_from_goal_solved(false);

	// Example lambda to check if either is high
	auto is_path_solved = [&]() -> bool { return is_from_goal_solved.load() \|\| is_from_start_solved.load(); };

	auto from_start = [&]() -> void { is_from_start_solved = true; };
	auto from_goal = [&]() -> void { is_from_goal_solved = false; };

	std::thread t_from_start(from_start);

KPB3rd / enforce_template_type.cpp

Created March 29, 2022 15:35

Require a templated type for a member function

	template <class T>
	class(std::vector<thing> things) {
	static_assert(std::is_same_v<T, TheTypeIWant>, "This constructor requires TheTypeIWant!");

	}

KPB3rd / cmake download files from ftp.txt

Created February 23, 2022 16:30

Download files using cmake

	# Individual File download
	if(NOT DEFINED DOWNLOADED OR NOT ${DOWNLOADED})
	file(DOWNLOAD
	"ftp://10.0.IP.IP/example.txt"
	"${CMAKE_CURRENT_SOURCE_DIR}/data/"
	SHOW_PROGRESS
	STATUS status
	LOG log)
	endif()

KPB3rd / Matplotlib Animation and gif.py

Created November 9, 2021 14:07

Matplotlib Animation and gif

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

	fig = plt.figure()

	ax = fig.add_subplot(111)

	scat = ax.scatter([], [])
	def animate(i):

KPB3rd / Set json or xml node in file.py

Last active October 6, 2021 20:43

Function to update a node in a json or xml file

	import xml.etree.ElementTree as ET
	import json

	def nested_json_set(dic, keys, value):
	for key in keys[:-1]:
	dic = dic.setdefault(key, {})
	dic[keys[-1]] = value

	def ReplaceStringInFile(filename, child_tree, dest_ip):
	# try:

Kenny Bowers KPB3rd