tmcw

Back up your gists: update YOUR_USERNAME and YOUR_PASSWORD and run it. Requires

sudo pip install requests

I use this mainly to be able to quickly search through my thousands of Gists with a tool like ack or ag.

jfsiii

// from http://www.w3.org/TR/WCAG20/#relativeluminancedef
function relativeLuminanceW3C(R8bit, G8bit, B8bit) {

    var RsRGB = R8bit/255;
    var GsRGB = G8bit/255;
    var BsRGB = B8bit/255;

    var R = (RsRGB <= 0.03928) ? RsRGB/12.92 : Math.pow((RsRGB+0.055)/1.055, 2.4);
    var G = (GsRGB <= 0.03928) ? GsRGB/12.92 : Math.pow((GsRGB+0.055)/1.055, 2.4);
    var B = (BsRGB <= 0.03928) ? BsRGB/12.92 : Math.pow((BsRGB+0.055)/1.055, 2.4);

Wizmann

# coding=utf-8
import sys
import xml.etree.cElementTree as cElementTree
from pyquery import PyQuery
import multiprocessing as mp
import time

reload(sys)
sys.setdefaultencoding('utf-8')

tmcw

The difference between XYZ and TMS tiles and how to convert between them

Lots of tile-based maps use either the XYZ or TMS scheme. These are the maps that have tiles ending in /0/0/0.png or something. Sometimes if it's a script, it'll look like &z=0&y=0&x=0 instead. Anyway, these are usually maps in Spherical Mercator.

Good examples are OpenStreetMap, Google Maps, MapBox, MapQuest, etc. Lots of maps.

Most of those are in XYZ. The best documentation for that is slippy map tilenames on the OSM Wiki, and Klokan's Tiles a la Google.

dergachev

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:

guilhermepontes

const Application = ((d) => {
  const privateVariable = 'Private content'
  
  const __private = {
    cache: () => {
      this.link = d.querySelector('.link')
    },
    
    bind: () => {
      this.link.addEventListener('click', this.showContent, false)

mbostock

license: gpl-3.0

migurski

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# -----------------------------------------------------------------------------
# Copyright INRIA
# Contributors: Nicolas P. Rougier (Nicolas.Rougier@inria.fr)
#
# DANA is a computing framework for the simulation of distributed,
# asynchronous, numerical and adaptive models.
#
# This software is governed by the CeCILL license under French law and abiding

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

liamcurry

#!/bin/sh                        

#  Output file for HTML5 video
#  requirements: ffmpeg .6+
#  usage: ./html5video.sh infile.mp4 640x360

target_directory='converted'
file=`basename $1`
filename=${file%.*}
filepath=`dirname $1`