John Grant cyrfer

Multiple SSH Keys settings for different github account

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

(Full description and list of commands at - https://npmjs.org/doc/index.html)

Make sure to export your local $PATH and prepand relative ./node_modules/.bin/:

A quick overview of the node.js streams interface with basic examples.

Streams are a first-class construct in Node.js for handling data.

Think of them as as lazy evaluation applied to data.

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	// It is important to declare your variables.

	(function() {
	var foo = 'Hello, world!';
	print(foo); //=> Hello, world!
	})();

	// Because if you don't, the become global variables.

	(function() {

	#!/usr/bin/env python

	#
	# Converts any integer into a base [BASE] number. I have chosen 62
	# as it is meant to represent the integers using all the alphanumeric
	# characters, [no special characters] = {0..9}, {A..Z}, {a..z}
	#
	# I plan on using this to shorten the representation of possibly long ids,
	# a la url shortenters
	#

	var XML_CHAR_MAP = {
	'<': '<',
	'>': '>',
	'&': '&',
	'"': '"',
	"'": '''
	};

	function escapeXml (s) {
	return s.replace(/[<>&"']/g, function (ch) {

	/*
	* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
	*/

	var http = require('http'),
	fs = require('fs'),
	util = require('util');

	http.createServer(function (req, res) {
	var path = 'video.mp4';

	// original:
	// - http://stackoverflow.com/questions/7918868/how-to-escape-xml-entities-in-javascript
	// - http://stackoverflow.com/questions/1091945/where-can-i-get-a-list-of-the-xml-document-escape-characters
	// - http://www.w3.org/TR/xml/#syntax

	if (!String.prototype.encodeXML) {
	String.prototype.encodeXML = function () {
	return this.replace(/&/g, '&')
	.replace(/</g, '<')
	.replace(/>/g, '>')

	import cv2
	import numpy as np


	def in_front_of_both_cameras(first_points, second_points, rot, trans):
	# check if the point correspondences are in front of both images
	rot_inv = rot
	for first, second in zip(first_points, second_points):
	first_z = np.dot(rot[0, :] - second[0]rot[2, :], trans) / np.dot(rot[0, :] - second[0]rot[2, :], second)
	first_3d_point = np.array([first[0] * first_z, second[0] * first_z, first_z])