Douglas Duhaime duhaime

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).

What

Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.

What are we using? What do you need?

An active AWS account. First time sign-ups are eligible for the free tier for a year
One Micro Tier EC2 Instance
With AWS we will use the stock Ubuntu Server AMI and customize it.
Anaconda for Python.
Coffee/Beer/Time

	#!/usr/bin/env python

	# Force-Directed Graph Drawing

	import Tkinter
	import random
	import math

	# d = [
	# [.0, .3, .3, .0],

	# libraries used. install as necessary

	library(shiny)
	library(RJSONIO) # acquiring and parsing data
	library(ggplot2) # graphs
	library(plyr) # manipulating data
	library(lubridate) #dates
	library(stringr)

	trim.leading <- function (x) sub("^\\s+", "", x)

	from bitarray import bitarray
	import mmh3

	class BloomFilter:

	def __init__(self, size, hash_count):
	self.size = size
	self.hash_count = hash_count
	self.bit_array = bitarray(size)
	self.bit_array.setall(0)

	#!/usr/bin/env python2
	'''Serving dynamic images with Pandas and matplotlib (using flask).'''

	import matplotlib
	matplotlib.use('Agg')

	import matplotlib.pyplot as plt
	import numpy as np
	import pandas as pd
	from cStringIO import StringIO

	// Requires JQuery and CORS enabled for the Origin you're testing from.
	// Uncomment the next 4 lines to import JQuery
	// var script= document.createElement('script');
	// script.type= 'text/javascript';
	// script.src= '//cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js';
	// document.head.appendChild(script);

	// Set up the multipart form using HTML5 FormData object
	// https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest/FormData
	var form = new FormData();

	license: gpl-3.0
	redirect: https://observablehq.com/@mbostock/raster-reprojection