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:

patriciogonzalezvivo

Face by Face

void addFace(ofMesh& mesh, ofVec3f a, ofVec3f b, ofVec3f c) {
	ofVec3f normal = ((b - a).cross(c - a)).normalize();
	mesh.addNormal(normal);
	mesh.addVertex(a);
	mesh.addNormal(normal);
	mesh.addVertex(b);
	mesh.addNormal(normal);

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

RichFromGalvanize

var request = require('request');
var express = require('express');
var app = express();

app.get('/goofy', function(req, res) {
  request('http://images1.wikia.nocookie.net/__cb20120715102950/disney/images/a/a5/Disneygoofy2012.jpeg').pipe(res);
});

app.get('/loop', function(req, res) {
  res.render('mypage');

ichabodcole

fadeTo: (value, fadeLength)->
  fadeLength = fadeLength || @defaultfadeLength
  currentTime = @ctx.currentTime
  #time the fade should complete
  fadeTime = currentTime + fadeLength
  #set the start time
  @masterGain.gain.setValueAtTime(@userVolume, currentTime)
  @masterGain.gain.linearRampToValueAtTime(value, fadeTime)

fadeOut: (fadeLength)->

kissane

Style Book

We're currently using the Chicago Manual of Style. It's imperfect, but it's better than the alternatives, so far.

Style Basics & Deviations From the Stylebook

• We don't wrap article titles within text in quotes, but we do link to them on first usage
• We don't italicize the names of publications in article text
• We don't cap "The" in publication titles in article text, but we do in Organization entries
• Commas and periods go inside closing quotation marks

gist:7200880

/*  passable motion blur effect using frame blending
 *  basically move your 'draw()' into 'sample()', time runs from 0 to 1
 *  by dave
 *  http://beesandbombs.tumblr.com
 */

int samplesPerFrame = 32;  // more is better but slower. 32 is enough probably
int numFrames = 48;        
float shutterAngle = 2.0;  // this should be between 0 and 1 realistically. exaggerated for effect here
int[][] result;

README.md

Part 1

Proof of concept

Say, you want to save your D3 application in a CouchDB database. This is just a proof of concept that this is possible. I use the »Focus + Context« diagram by Mike Bostock (http://bl.ocks.org/1667367) as an example.

Prerequisites:

• A running CouchDB (see http://couchdb.apache.org/; in my Windows installation CouchDb is started as a Windows service when Windows starts).
• An installation of couchapp (how to install couchapp, see http://couchapp.org/page/index).
• Your favorite editor.

mfornos

/*
-----------------------------------
Emoji - natural display for the web
-----------------------------------

These font face definitions allows to display emoji glyphs intermingled with 
arbitrary characters outside emoji unicode blocks.


Usage

bsweger

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)