Tianjie Wu Tianjie-Wu

Tianjie-Wu / float_to_rgba.py

Created September 5, 2023 02:00 — forked from DavidAntliff/float_to_rgba.py

Encode 32bit float into three 8bit RGBA channels

	#!/usr/bin/env python
	# Store 32-bit floating point number within three 8bit channels of a 32-bit RGBA pixel.
	# Only suitable for normalised input values in the range [0.0, 1.0).
	#
	# Refer: https://aras-p.info/blog/2009/07/30/encoding-floats-to-rgba-the-final/

	import numpy as np

	def frac(x):
	return x - np.floor(x)

Tianjie-Wu / fail2ban_amznlnx2.sh

Created August 30, 2023 09:23 — forked from johnstanfield/fail2ban_amznlnx2.sh

install fail2ban on amazon linux 2

	# run as root or sudo everything below

	# install epel
	amazon-linux-extras install epel -y

	# install fail2ban
	yum -y install fail2ban

	# configure fail2ban (just adding enabled=true in the sshd section)
	cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local

Tianjie-Wu / count_data_by_xy.py

Created April 20, 2023 02:36

pandas count_data_by_xy

	def create_1d_middle_mean_array(arr):
	mean_arr = []
	for i in range(arr.shape[0] - 1):
	mean = (arr[i] + arr[i+1])/2.0
	mean_arr.append(mean)
	return numpy.array(mean_arr)

	def x_to_2d_with_duplication(X,num_rows):
	data_2d = numpy.tile(X, (num_rows, 1))
	return data_2d

Tianjie-Wu / build_2d_3d_from_1d.py

Created March 30, 2023 10:16

build 2d or 3d data from flatten dataset

	def build_1_dim_data(data_for_dim1):
	data_shape = data_for_dim1.shape
	DATA1D = numpy.zeros((data_shape[0],1),dtype=float)
	DATA1D[:,0] = data_for_dim1
	return DATA1D
	def build_2_dim_data(data_for_dim1, data_for_dim2):
	data_shape = data_for_dim1.shape
	DATA2D = numpy.zeros((data_shape[0],2),dtype=float)
	DATA2D[:,0] = data_for_dim1
	DATA2D[:,1] = data_for_dim2

Tianjie-Wu / colormap.py

Created January 26, 2023 08:20

colormap for rainfall plot

Tianjie-Wu / git checkout-all-branches.sh

Created February 9, 2022 02:09 — forked from wilmarvh/git checkout-all-branches.sh

git checkout-all-branches

	#!/bin/bash

	#Whenever you clone a repo, you do not clone all of its branches by default.
	#If you wish to do so, use the following script:

	for branch in `git branch -a \| grep remotes \| grep -v HEAD \| grep -v master `; do
	git branch --track ${branch#remotes/origin/} $branch
	done